IP Library › Granted Patent US 12673942

Granted Patent B2

US 12673942 · App. 18/009,681 · Granted Jul 7, 2026

Azabicyclyl-substituted heterocycles as fungicides

Inventors: Julie Geist (Lyons, FR); Anthony Millet (Tignieu-Jameyzieu, FR); Cyril Montagne (Lyons, FR); Lionel Nicolas (Lyons, FR); Dominique Loque (Satigny, CH); Vincent Thomas (Lyons, FR); Mazen Es-Sayed (Langenfeld, DE); Alexander Sudau (Langenfeld, DE)

Assignee: Bayer Aktiengesellschaft

C07D413/04 A01N43/42 A01N43/50 A01N43/58 A01N43/88 A01N43/90 A01P3/00 C07D401/04 C07D401/12 C07D403/04 C07D403/12 C07D413/14 C07D471/04 C07D491/048

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Quick Facts

Patent No.: US 12673942
App. No.: 18/009,681
Granted: Jul 7, 2026
Kind: B2

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Abstract

The present disclosure relates to azabicyclyl-substituted heterocyclic compounds of formula (I), wherein A 1 , A 2 , m, R 3 , R 4 , R 5 , L, R 6 , T, the ring Y, p, R 7 and Q have the meanings as defined in the specification, to compositions comprising such compounds, to processes and intermediates for their preparation as well as the uses thereof for controlling phytopathogenic microorganisms, such as phytopathogenic fungi.

Claims (273)

1 . A compound of formula (I):

wherein

A 1 is N or CR 8 ;

A 2 is O, S, C(═O), S(═O), S(═O) 2 , NR 1 or CR 2A R 2B ,

wherein

R 1 , R 2A and R 2B are independently from each other hydrogen, C 1 -C 6 -alkyl or C 3 -C 8 -cycloalkyl,

wherein C 1 -C 6 -alkyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, amino, nitro, hydroxyl, formyl, carboxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

and

wherein C 3 -C 8 -cycloalkyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, formyl, oxo, methylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -halo-alkoxy, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

R 2A and R 2B form together with the carbon atom to which they are attached to a C 3 -C 8 -cycloalkyl-ring or a 3- to 7-membered heterocyclyl-ring,

m is 0, 1 or 2,

R 3 and R 4 are independently hydrogen, halogen, cyano, hydroxyl, formyl, carboxyl, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl, C 3 -C 8 -cycloalkyl, C 6 -C 14 -aryl, 5- to 14-membered heteroaryl, 3- to 14-membered heterocyclyl or —O—Si(C 1 -C 6 -alkyl) 3 ,

wherein C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl and —O—Si(C 1 -C 6 -alkyl) 3 are optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, amino, nitro, hydroxyl, formyl, carboxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

and

wherein C 3 -C 8 -cycloalkyl, C 6 -C 14 -aryl, 5- to 14-membered heteroaryl and 3- to 14-membered heterocyclyl are optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, formyl, oxo, methylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -halo-alkoxy, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

R 3 and R 4 form together with the carbon atom to which they are attached to a carbonyl, a methylidene, a C 3 -C 8 -cycloalkyl-ring or a 3- to 7-membered heterocyclyl-ring,

wherein C 3 -C 8 -cycloalkyl-ring and 3- to 7-membered heterocyclyl-ring are optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, formyl, oxo, methylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

R 5 is hydrogen, hydroxyl, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -alkylcarbonyloxy, C 1 -C 6 -alkyl-sulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -alkylsulfonyl, C 3 -C 8 -cycloalkyl or —O—Si(C 1 -C 6 -alkyl) 3 , wherein C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -alkylcarbonyloxy, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -alkylsulfonyl and —O—Si(C 1 -C 6 -alkyl) 3 are optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, amino, nitro, hydroxyl, formyl, carboxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxy-carbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

and

wherein C 3 -C 8 -cycloalkyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, formyl, oxo, methylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

R 3 and R 5 or R 4 and R 5 form together with the carbon atoms to which they are attached to a C 3 -C 8 -cycloalkyl-ring,

T is hydrogen, hydroxyl, C 1 -C 6 -alkyl, —C(═O)R 9 , —C(═O)(OR 10 ), C(═O)N(R 11 ) 2 , —S(═O)R 12 , —S(═O) 2 R 13 or —S(═O) 2 N(R 14 ) 2 ,

wherein

R 9 and R 10 are independently C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 8 -cycloalkyl or C 2 -C 6 -alkenyl,

R 11 , R 12 , R 13 and R 14 are independently hydrogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 8 -cycloalkyl or C 2 -C 6 -alkenyl,

L is a direct bond, carbonyl, C 1 -C 6 -alkylene, C 2 -C 6 -alkenylene, C 2 -C 6 -alkynylene, —C(═O)—C 1 -C 6 -alkylene-, —C 1 -C 6 -alkylene-C(═O)—, —NR L1 —, —NR L2 (C═O)—, —C(═O)NR L3 —, —NR L4 S(═O) 2 —, —S(═O) 2 NR L5 —, —C(═NOR L6 )—, —C(═N—N(R L7 ) 2 )—, —C(═NR L8 )— or a group of formula

wherein

said C 1 -C 6 -alkylene, C 2 -C 6 -alkenylene, C 2 -C 6 -alkynylene, —C(═O)—C 1 -C 6 -alkylene- and —C 1 -C 6 -alkylene-C(═O)— are optionally substituted with one to three substituents L SA ,

# is the point of attachment to the heterocyclyl-moiety,

## is the point of attachment to R 6 ,

L 1 is a direct bond or C 1 -C 6 -alkylene,

L 2 is a direct bond or C 1 -C 6 -alkylene,

E is C 3 -C 8 -cycloalkyl, C 3 -C 8 -cycloalkenyl or 3- to 7-membered heterocyclyl,

wherein said C 3 -C 8 -cycloalkyl, C 3 -C 8 -cycloalkenyl and 3- to 7-membered heterocyclyl in turn are optionally substituted with one to three substituents L SC ,

R L1 , R L2 , R L3 and R L4 are independently hydrogen or C 1 -C 6 -alkyl,

R L5 , R L6 , R L7 and R L8 are independently hydrogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 8 -cycloalkyl or C 2 -C 6 -alkenyl,

L SA is independently halogen, cyano, hydroxyl, carboxyl, methylidene, halomethylidene, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, C 1 -C 6 -alkoxycarbonyl, —O—Si(C 1 -C 6 -alkyl) 3 or 3- to 7-membered heterocyclyl,

and/or

two substituents L SA that are bound to the same carbon atom form together with the carbon atom which they are attached to a C 3 -C 8 -cycloalkyl-ring or a 3- to 7-membered heterocyclyl-ring,

L SC is independently halogen, cyano, nitro, hydroxyl, formyl, carboxyl, oxo, methylidene, halomethylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 or 3- to 7-membered heterocyclyl,

and/or

two L SC substituents form together with the carbon atom(s) to which they are attached to a C 3 -C 8 -cycloalkyl-ring,

R 6 is C 3 -C 12 -carbocyclyl, C 6 -C 14 -aryl, 3- to 14-membered heterocyclyl, 5- to 14-membered hetero-aryl, C 3 -C 12 -carbocyclyloxy, C 6 -C 14 -aryloxy, 5- to 14-membered heteroaryloxy, 3- to 14-membered heterocyclyloxy, C 3 -C 12 -carbocyclylsulfanyl, C 6 -C 14 -arylsulfanyl, 5- to 14-membered heteroarylsulfanyl, 3- to 14-membered heterocyclylsulfanyl, C 3 -C 12 -carbocyclyl-sulfinyl, C 6 -C 14 -arylsulfinyl, 5- to 14-membered heteroarylsulfinyl, 3- to 14-membered hetero-cyclylsulfinyl, C 3 -C 12 -carbocyclylsulfonyl, C 6 -C 14 -arylsulfonyl, 5- to 14-membered heteroaryl-sulfonyl, 3- to 14-membered heterocyclylsulfonyl, C 1 -C 3 -alkoxy, C 1 -C 3 -haloalkoxy, C 1 -C 3 -alkylsulfanyl, C 1 -C 3 -alkylsulfinyl or C 1 -C 3 -alkylsulfonyl,

wherein C 1 -C 3 -alkoxy, C 1 -C 3 -haloalkoxy, C 1 -C 3 -alkylsulfanyl, C 1 -C 3 -alkylsulfinyl and C 1 -C 3 -alkylsulfonyl are substituted with one substituent selected from the group consisting of C 3 -C 12 -carbocyclyl, C 6 -C 14 -aryl, 3- to 14-membered heterocyclyl and 5- to 14-membered heteroaryl,

wherein said C 3 -C 12 -carbocyclyl, C 6 -C 14 -aryl, 3- to 14-membered heterocyclyl and 5- to 14-membered heteroaryl in turn are optionally substituted with one to four R 6S substituents,

wherein C 3 -C 12 -carbocyclyl, C 6 -C 14 -aryl, 3- to 14-membered heterocyclyl, 5- to 14-membered heteroaryl, C 3 -C 12 -carbocyclyloxy, C 6 -C 14 -aryloxy, 5- to 14-membered heteroaryloxy, 3- to 14-membered heterocyclyloxy, C 3 -C 12 -carbocyclylsulfanyl, C 6 -C 14 -arylsulfanyl, 5- to 14-membered heteroarylsulfanyl, 3- to 14-membered heterocyclylsulfanyl, C 3 -C 12 -carbocyclyl-sulfinyl, C 6 -C 14 -arylsulfinyl, 5- to 14-membered heteroarylsulfinyl, 3- to 14-membered hetero-cyclylsulfinyl, C 3 -C 12 -carbocyclylsulfonyl, C 6 -C 14 -arylsulfonyl, 5- to 14-membered heteroaryl-sulfonyl and 3- to 14-membered heterocyclylsulfonyl are optionally substituted with one to four R 6S substituents,

wherein

R 6S is independently selected from the group consisting of halogen, cyano, isocyano, nitro, hydroxyl, mercapto, pentafluorosulfanyl, oxo, methylidene, halomethylidene, formyl, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -halo-alkynyl, C 2 -C 6 -alkenyloxy, C 2 -C 6 -haloalkenyl-oxy, C 2 -C 6 -alkylnyloxy, C 2 -C 6 -haloalkylnyloxy, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -haloalkyl-sulfanyl, C 3 -C 8 -cycloalkylsulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -haloalkylsulfinyl, C 3 -C 8 -cycloalkyl-sulfinyl, C 1 -C 6 -alkylsulfonyl, C 1 -C 6 -haloalkylsulfonyl, C 3 -C 8 -cyclo-alkylsulfonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -cycloalkyloxy, C 3 -C 8 -cycloalkenyl, C 6 -C 14 -aryl, 5- or 6-membered heteroaryl, 3- to 7-membered heterocyclyl, —N(R 15 ) 2 , —O(C═O)R 16 , —C(═O)R 16 , —C(═O)(OR 17 ), —C(═O)N(R 18 ) 2 , —S(═O) 2 N(R 19 ) 2 , —O—Si(C 1 -C 6 -alkyl) 3 and —Si(C 1 -C 6 -alkyl) 3 ,

wherein C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 2 -C 6 -alkenyl-oxy, C 2 -C 6 -haloalkenyloxy, C 2 -C 6 -alkylnyloxy, C 2 -C 6 -haloalkylnyloxy, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -haloalkylsulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -haloalkyl-sulfinyl, C 1 -C 6 -alkylsulfonyl, C 1 -C 6 -haloalkylsulfonyl, —O—Si(C 1 -C 6 -alkyl) 3 and —Si(C 1 -C 6 -alkyl) 3 are furthermore optionally substituted with one to three substituents independently selected from the group consisting of cyano, hydroxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, —O—Si(C 1 -C 6 -alkyl) 3 , —Si(C 1 -C 6 -alkyl) 3 , C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl and 3- to 7-membered heterocyclyl,

two substituents C 1 -C 6 -alkyl attached to the same carbon atom form together with the carbon atom to which they are attached to a C 3 -C 8 -cycloalkyl-ring,

and

wherein C 3 -C 8 -cycloalkylsulfanyl, C 3 -C 8 -cycloalkylsulfinyl, C 3 -C 8 -cycloalkyl-sulfonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -cycloalkyloxy, C 3 -C 8 -cycloalkenyl, C 6 -C 14 -aryl, 5- or 6-membered heteroaryl and 3- to 7-membered heterocyclyl are furthermore optionally substituted with one to four substituents independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, formyl, carboxyl, oxo, methylidene, halomethylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxy-carbonyl, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl and C 3 -C 8 -halocycloalkyl,

and wherein

R 15 is independently hydrogen, C 1 -C 6 -alkyl or C 3 -C 8 -cycloalkyl,

wherein said C 1 -C 6 -alkyl in turn is optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, hydroxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, —O—Si(C 1 -C 6 -alkyl) 3 , —Si(C 1 -C 6 -alkyl) 3 , C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl and 3- to 7-membered heterocyclyl,

and

wherein said C 3 -C 8 -cycloalkyl in turn is optionally substituted with one to four substituents independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, formyl, carboxyl, oxo, methylidene, halomethylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxy-carbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl and C 3 -C 8 -halocycloalkyl,

R 16 , R 17 , R 18 and R 19 are independently hydrogen, C 1 -C 6 -alkyl or C 1 -C 6 -haloalkyl,

wherein said C 1 -C 6 -alkyl and C 1 -C 6 -haloalkyl in turn are optionally substituted with one to three substituents independently selected from the group consisting of cyano, hydroxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, —O—Si(C 1 -C 6 -alkyl) 3 , —Si(C 1 -C 6 -alkyl) 3 , C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl and 3- to 7-membered heterocyclyl,

the ring Y forms together with the pyridine- or pyridazine-ring respectively a bicyclic hetero-cyclyl or a bicyclic heteroaryl,

p is 0, 1, 2, 3 or 4,

R 7 is hydrogen, halogen, cyano, isocyano, hydroxyl, mercapto, nitro, amino, formyl, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -hydroxyalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 2 -C 6 -alkenyloxy, C 2 -C 6 -haloalkenyl-oxy, C 2 -C 6 -alkynyloxy, C 2 -C 6 -haloalkynyloxy, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -haloalkylsulfanyl, C 3 -C 8 -cycloalkylsulfanyl, C 2 -C 6 -alkenylsulfanyl, C 2 -C 6 -alkynylsulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -haloalkylsulfinyl, C 3 -C 8 -cycloalkylsulfinyl, C 1 -C 6 -alkylsulfonyl, C 1 -C 6 -haloalkyl-sulfonyl, C 3 -C 8 -cycloalkylsulfonyl, C 3 -C 8 -cycloalkyl, C 3 -C 6 -cycloalkenyl, 3- to 7-membered heterocyclyl, C 3 -C 8 -cycloalkyloxy, —O—Si(C 1 -C 6 -alkyl) 3 , —Si(C 1 -C 6 -alkyl) 3 , —N(R 20 ) 2 , —C(═NR 21 )R 22 , —NR 23 C(═O)R 24 , —C(═O)(OR 25 ), —C(═O)N(R 26 ) 2 , —S(═O) 2 N(R 27 ) 2 or —S(═O)(═NR 28 )R 29 ,

wherein C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -hydroxyalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxy-carbonyl, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 2 -C 6 -alkenyl-oxy, C 2 -C 6 -haloalkenyloxy, C 2 -C 6 -alkynyloxy, C 2 -C 6 -haloalkynyloxy, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -haloalkylsulfanyl, C 2 -C 6 -alkenylsulfanyl, C 2 -C 6 -alkynylsulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -haloalkylsulfinyl, C 1 -C 6 -alkylsulfonyl, C 1 -C 6 -haloalkylsulfonyl, —O—Si(C 1 -C 6 -alkyl) 3 and —Si(C 1 -C 6 -alkyl) 3 are optionally substituted with one to three R 7Sa substituents,

wherein C 3 -C 8 -cycloalkylsulfanyl, C 3 -C 8 -cycloalkylsulfinyl, C 3 -C 8 -cycloalkylsulfonyl, C 3 -C 8 -cycloalkyl, C 3 -C 6 -cycloalkenyl, 3- to 7-membered heterocyclyl, C 3 -C 8 -cycloalkyloxy are optionally substituted with one to three R 7Sc substituents,

and wherein

R 20 is independently hydrogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halo-cycloalkyl or 3- to 7-membered heterocyclyl,

wherein C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -halo-alkenyl, C 2 -C 6 -alkynyl and C 2 -C 6 -haloalkynyl in turn are optionally substituted with one to three substituents R 7Sa ,

and

wherein C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl and 3- to 7-membered heterocyclyl in turn are optionally substituted with one to three substituents R 7Sc ,

R 21 and R 22 are independently hydroxyl, amino, cyano, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, mono-(C 1 -C 6 -alkyl)amino or di-(C 1 -C 6 -alkyl)amino,

wherein C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, mono-(C 1 -C 6 -alkyl)-amino and di-(C 1 -C 6 -alkyl)amino in turn are optionally substituted with one to three R 7Sa substituents,

R 23 , R 24 , R 25 , R 26 , R 27 , R 28 and R 29 are independently hydrogen, C 1 -C 6 -alkyl, C 1 -C 6 -halo-alkyl and C 3 -C 8 -cycloalkyl,

wherein C 1 -C 6 -alkyl and C 1 -C 6 -haloalkyl in turn are optionally substituted with one to three R 7Sa substituents,

and

wherein C 3 -C 8 -cycloalkyl in turn is optionally substituted with one to three R 7Sc substituents,

wherein

R 7Sa is independently cyano, hydroxyl, carboxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, C 1 -C 6 -alkoxycarbonyl, —O—Si(C 1 -C 6 -alkyl) 3 , —Si(C 1 -C 6 -alkyl) 3 or 3- to 7-membered heterocyclyl,

R 7Sc is independently halogen, cyano, nitro, hydroxyl, formyl, oxo, methylidene, halomethylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 or 3- to 7-membered heterocyclyl,

two R 75c substituents that are bound to the same carbon atom form together with the carbon atom to which they are attached to a C 3 -C 8 -cycloalkyl-ring,

two R 7 substituents form together with the carbon atoms to which they are attached to a C 3 -C 8 -cycloalkyl-ring,

R 8 is hydrogen or halogen,

Q is C 6 -C 14 -aryl, C 3 -C 12 -carbocyclyl, 3- to 14-membered heterocyclyl or 5- to 14-membered heteroaryl,

wherein C 6 -C 14 -aryl, C 3 -C 12 -carbocyclyl, 3- to 14-membered heterocyclyl or 5- to 14-membered heteroaryl are optionally substituted with one to five substituents Q S ,

wherein

Q S is independently selected from the group consisting of halogen, cyano, isocyano, nitro, hydroxyl, mercapto, formyl, carboxyl, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 2 -C 6 -alkenyloxy, C 2 -C 6 -haloalkenyloxy, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -haloalkylsulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -haloalkylsulfinyl, C 1 -C 6 -alkylsulfonyl, C 1 -C 6 -haloalkylsulfonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -cycloalkyloxy, C 3 -C 6 -cycloalkenyl, 3- to 7-membered heterocyclyl, C 6 -C 14 -aryl, 5- to 14-membered heteroaryl, —O—Si(C 1 -C 6 -alkyl) 3 , —Si(C 1 -C 6 -alkyl) 3 , —O—C(═O)R 30 , —NR 31 C(═O)R 32 , —C(═O)N(R 33 ) 2 , C(═S)R 34 , —C(═S) N(R 35 ) 2 , —C(═NR 36 )R 37 , —C(═NOR 38 )R 39 and —N(R 40 ) 2 ,

wherein

said C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkyl-carbonyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 2 -C 6 -alkenyloxy, C 2 -C 6 -haloalkenyloxy, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -haloalkylsulfanyl, C 1 -C 6 -alkylsulfinyl, C 1 -C 6 -haloalkylsulfinyl, C 1 -C 6 -alkylsulfonyl, C 1 -C 6 -haloalkylsulfonyl, —O—Si(C 1 -C 6 -alkyl) 3 and —Si(C 1 -C 6 -alkyl) 3 in turn are optionally substituted with one to three substituents independently selected from the group consisting of cyano, amino, nitro, hydroxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

and said C 3 -C 8 -cycloalkyl, C 3 -C 8 -cycloalkoxy, C 3 -C 6 -cycloalkenyl, 3- to 7-membered heterocyclyl and 5- to 14-membered heteroaryl in turn are optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, amino, nitro, hydroxyl, formyl, carboxyl, oxo, methylidene, halomethylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -halo-alkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, C 2 -C 6 -alkenyl and 3- to 7-membered heterocyclyl,

wherein said C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl and 3- to 7-membered heterocyclyl furthermore are optionally substituted with two substituents forming together with the carbon atom(s) to which they are attached to a C 3 -C 8 -cycloalkyl,

and wherein

R 30 , R 31 , R 32 , R 33 , R 34 , R 35 , R 36 , R 37 , R 38 and R 39 are independently hydrogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl or C 1 -C 6 -alkoxy,

wherein

said C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl and C 1 -C 6 -alkoxy in turn are optionally substituted with one to three substituents independently selected from the group consisting of cyano, amino, nitro, hydroxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -halo-alkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

and wherein

R 40 is hydrogen, hydroxyl, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl or C 3 -C 8 -cycloalkyl,

wherein said C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 2 -C 6 -alkenyl and C 2 -C 6 -haloalkenyl in turn are optionally substituted with one to three substituents independently selected from the group consisting of cyano, amino, nitro, hydroxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

and wherein said C 3 -C 8 -cycloalkyl in turn is optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, amino, nitro, hydroxyl, formyl, carboxyl, oxo, methylidene, halomethylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -halo-alkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, C 2 -C 6 -alkenyl and 3- to 7-membered heterocyclyl,

two Q S substituents that are bound to the same carbon atom form together with the carbon atom to which they are attached to a C 3 -C 8 -cycloalkyl-ring,

as well as N-oxides, salts, hydrates and hydrates of the salts and N-oxides thereof.

2 . The compound of formula (I) according to claim 1 , wherein

A 1 is N or CR 8 ;

A 2 is O, S, C(═O), S(═O), S(═O) 2 , NR 1 or CR 2A R 2B ,

wherein

R 1 , R 2A and R 2B are independently from each other hydrogen, C 1 -C 4 -alkyl or C 3 -C 6 -cycloalkyl,

wherein C 1 -C 4 -alkyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, amino, nitro, hydroxyl, formyl, carboxyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 1 -C 6 -alkoxycarbonyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

and

wherein C 3 -C 6 -cycloalkyl is optionally substituted with one to three substituents independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, formyl, oxo, methylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -halo-alkoxy, C 2 -C 6 -alkenyl, C 3 -C 8 -cycloalkyl, C 3 -C 8 -halocycloalkyl, —O—Si(C 1 -C 6 -alkyl) 3 and 3- to 7-membered heterocyclyl,

m is 0, 1 or 2,

R 3 and R 4 are independently hydrogen, fluoro, chloro, C 1 -C 4 -alkyl, C 2 -C 4 -alkenyl, C 2 -C 4 -alkynyl or C 3 -C 6 -cycloalkyl,

wherein C 1 -C 4 -alkyl, C 2 -C 4 -alkenyl and C 2 -C 4 -alkynyl are optionally substituted with one to three substituents independently selected from the group consisting of fluoro, chloro, hydroxyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 3 -C 6 -cycloalkyl and C 3 -C 6 -halocycloalkyl,

and

wherein C 3 -C 6 -cycloalkyl is optionally substituted with one to three substituents independently selected from the group consisting of fluoro, chloro, hydroxyl, oxo, methylidene, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 2 -C 4 -alkenyl, C 3 -C 6 -cycloalkyl and C 3 -C 6 -halocycloalkyl,

R 5 is hydrogen, hydroxyl, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or C 1 -C 4 -alkylsulfanyl,

wherein C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy and C 1 -C 6 -alkylsulfanyl are optionally substituted with one to three substituents independently selected from the group consisting of fluoro, chloro hydroxyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 3 -C 6 -cycloalkyl and C 3 -C 6 -halocycloalkyl,

and

wherein C 3 -C 6 -cycloalkyl is optionally substituted with one to three substituents independently selected from the group consisting of fluoro, chloro, hydroxyl, oxo, methylidene, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 2 -C 4 alkenyl, C 3 -C 6 -cycloalkyl and C 3 -C 6 -halocycloalkyl,

R 3 and R 5 or R 4 and R 5 form together with the carbon atom to which they are attached to a C 3 -C 6 -cycloalkyl-ring,

T is hydrogen or C 1 -C 4 -alkyl,

L is a direct bond, C 1 -C 6 -alkylene or a group of formula

wherein

said C 1 -C 6 -alkylene is optionally substituted with one to three substituents L SA ,

# is the point of attachment to the heterocyclyl-moiety,

## is the point of attachment to R 6 ,

L 1 is a direct bond or C 1 -C 6 -alkylene,

L 2 is a direct bond or C 1 -C 6 -alkylene,

E is C 3 -C 6 -cycloalkyl or 3- to 7-membered heterocyclyl,

wherein said C 3 -C 6 -cycloalkyl and 3- to 7-membered heterocyclyl in turn are optionally substituted with one to three substituents L SC ,

L SA is independently fluoro, chloro, hydroxyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 3 -C 6 -cycloalkyl and C 3 -C 6 -halocycloalkyl,

two substituents L SA that are bound to the same carbon atom form together with the carbon atom which they are attached to a C 3 -C 6 -cycloalkyl-ring or a 3- to 7-membered heterocyclyl-ring,

L SC is independently fluoro, chloro, hydroxyl, oxo, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 2 -C 4 -alkenyl, C 3 -C 6 -cycloalkyl or C 3 -C 6 -halocycloalkyl,

wherein C 1 -C 3 -alkoxy and C 1 -C 3 -haloalkoxy are substituted with one substituent selected from the group consisting of C 3 -C 12 -carbocyclyl, C 6 -C 14 -aryl, 3- to 14-membered heterocyclyl and 5- to 14-membered heteroaryl,

wherein said C 3 -C 12 -carbocyclyl, C 6 -C 14 -aryl, 3- to 14-membered heterocyclyl and 5- to 14-membered heteroaryl in turn are optionally substituted with one to three R 6S substituents,

wherein

R 6S is independently selected from the group consisting of halogen, cyano, nitro, hydroxyl, mercapto, pentafluorosulfanyl, oxo, methylidene, halomethylidene, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 1 -C 6 -alkylsulfanyl, C 1 -C 6 -haloalkylsulfanyl, C 3 -C 6 -cycloalkylsulfanyl, C 3 -C 6 -cycloalkyl, C 3 -C 6 -cycloalkyloxy, C 6 -C 14 -aryl, 5- or 6-membered heteroaryl, to heterocyclyl, —C(═O)(OR 17 ) 3-7-membered and —C(═O)N(R 18 ) 2

wherein C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -haloalkenyl, C 2 -C 6 -alkynyl, C 2 -C 6 -haloalkynyl, C 1 -C 6 -alkyl-sulfanyl and C 1 -C 6 -haloalkylsulfanyl in turn are optionally substituted with one to three substituents independently selected from the group consisting of hydroxyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 3 -C 6 -cycloalkyl and C 3 -C 6 -halo-cycloalkyl

and

wherein C 3 -C 6 -cycloalkylsulfanyl, C 3 -C 6 -cycloalkyl, C 3 -C 6 -cycloalkyloxy, C 6 -C 14 -aryl, 5- or 6-membered heteroaryl and 3- to 7-membered heterocyclyl in turn are optionally substituted with one to three substituents independently selected from the group consisting of fluoro, chloro, C 1 -C 4 -alkyl, C 1 -C 4 -halo-alkyl, C 1 -C 4 -alkoxy and C 1 -C 4 -haloalkoxy,

and wherein

R 17 and R 18 are independently hydrogen, C 1 -C 4 -alkyl or C 1 -C 4 -haloalkyl,

wherein said C 1 -C 4 -alkyl and C 1 -C 4 -haloalkyl in turn are optionally substituted with one to three substituents independently selected from the group consisting of hydroxyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 3 -C 6 -cycloalkyl and C 3 -C 6 -halocycloalkyl,

the ring Y forms together with the pyridine- or pyridazine-ring respectively a group of formula (II-a) to (II-v),

wherein

* is the point of attachment to the group —O-Q,

# is the point of attachment to the other heterocycle,

p is 0, 1, 2, 3 or 4,

x 1 is 1 or 2,

x 2 is 0, 1 or 2,

R 7A , R 7B , R 7C , R 7D , R 7E , R 7F and R 7G are independently hydrogen, hydroxyl, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy or C 1 -C 4 -haloalkoxy,

R 7H is hydrogen, C 1 -C 4 -alkyl or C 1 -C 4 -haloalkyl,

R 7K is methylidene, halomethylidene, halogen, hydroxyl, oxo, C 1 -C 4 -alkyl, C 1 -C 6 -haloalkyl or C 3 -C 6 -cycloalkyl,

two substituents R 7K form together with the carbon atoms to which they are attached to a C 3 -C 8 -cycloalkyl-ring,

R 8 is hydrogen or halogen,

Q is phenyl, naphthyl, C 3 -C 10 -carbocyclyl, 5- to 10-membered heterocyclyl or 5- to 10-membered heteroaryl,

wherein phenyl, naphthyl, C 3 -C 10 -carbocyclyl, 5- to 10-membered heterocyclyl and 5- to 10-membered heteroaryl are optionally substituted with one to three substituents Q S

wherein

Q S is independently selected from the group consisting of halogen, cyano, nitro, formyl, carboxyl, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkylcarbonyl, C 1 -C 4 -haloalkylcarbonyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 1 -C 4 -alkoxycarbonyl, C 1 -C 4 -haloalkoxycarbonyl, C 2 -C 4 alkenyl, C 2 -C 4 -haloalkenyl, C 2 -C 4 -alkynyl, C 2 -C 4 -haloalkynyl, C 1 -C 4 -alkyl-sulfanyl, C 1 -C 4 -haloalkylsulfanyl, C 1 -C 4 -alkylsulfinyl, C 1 -C 4 -haloalkylsulfinyl, C 1 -C 4 -alkylsulfonyl, C 1 -C 4 -haloalkylsulfonyl, C 3 -C 6 -cycloalkyl, 3- to 7-membered hetero-cyclyl, phenyl, 5- or 6-membered heteroaryl,

wherein

said C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkylcarbonyl, C 1 -C 4 -haloalkyl-carbonyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 1 -C 4 -alkoxycarbonyl, C 1 -C 4 -halo-alkoxycarbonyl, C 2 -C 4 alkenyl, C 2 -C 4 haloalkenyl, C 2 -C 4 -alkynyl, C 2 -C 4 -halo-alkynyl, C 1 -C 4 -alkylsulfanyl, C 1 -C 4 -haloalkylsulfanyl, C 1 -C 4 -alkylsulfinyl, C 1 -C 4 -haloalkylsulfinyl, C 1 -C 4 -alkylsulfonyl and C 1 -C 4 -haloalkylsulfonyl in turn are optionally substituted with one to three substituents independently selected from the group consisting of cyano, amino, nitro, hydroxyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 3 -C 6 -cycloalkyl, C 3 -C 6 -halocycloalkyl and 3- to 7-membered heterocyclyl,

said C 3 -C 6 -cycloalkyl, 3- to 7-membered heterocyclyl, phenyl and 5- or 6-membered heteroaryl in turn are optionally substituted with one to three substituents independently selected from the group consisting of fluoro, chloro, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 1 -C 4 -alkoxy-carbonyl, C 1 -C 4 -haloalkoxycarbonyl and C 3 -C 6 -cycloalkyl,

as well as salts, hydrates and hydrates of the salts thereof.

3 . The compound of formula (I) according to claim 1 , wherein

A 2 is O, NR 1 or CR 2A R 2B ,

wherein

R 1 , R 2A and R 2B are independently from each other hydrogen or C 1 -C 4 -alkyl,

m is 0 or 1,

T is hydrogen,

R 3 and R 4 are independently hydrogen, fluoro or C 1 -C 4 -alkyl

and

R 5 is hydrogen.

4 . The compound of formula (I) according to claim 1 , wherein

L is a direct bond, methylene, monofluoromethylene or difluoromethylene,

and

R 6 is indanyl, 1,2,3,4-tetrahydronaphthalenyl, phenyl, naphthyl, dihydrobenzofuranyl or dihydro-benzodioxinyl,

wherein indanyl, 1,2,3,4-tetrahydronaphthalenyl, phenyl, naphthyl, dihydrobenzofuranyl and dihydrobenzodioxinyl are optionally substituted with one or two R 6S substituents,

wherein

R 6S is independently selected from the group consisting of fluoro, chloro, bromo, C 1 -C 4 -alkyl, difluoromethyl, trifluoromethyl, C 1 -C 4 -alkoxy, difluoromethoxy, trifluoro-methoxy, C 2 -C 4 -alkenyl, methylcarbonyl, ethylcarbonyl, C 2 -C 4 -alkynyl, cyclopropyl, cyclobutyl, oxetanyl, tetrahydrofuranyl, pyrazolyl and pyridyl,

wherein cyclopropyl, cyclobutyl, oxetanyl, tetrahydrofuranyl, pyrazolyl and pyridyl in turn are optionally substituted with one to three substituents independently selected from the group consisting of fluoro, chloro, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy and C 1 -C 4 -haloalkoxy.

5 . The compound of formula (I) according to claim 1 , wherein

A 1 is N or CR 8 ,

wherein

R 8 is hydrogen,

and

Q is phenyl, wherein phenyl is substituted with one or two substituents Q S ,

wherein

Q S is independently selected from the group consisting of halogen, cyano, nitro, formyl, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkylcarbonyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 2 -C 4 -alkenyl, C 2 -C 4 -alkynyl, cyclopropyl and cyclobutyl,

wherein said cyclopropyl and cyclobutyl in turn are optionally substituted with one or two substituents independently selected from the group consisting of fluoro or methyl.

6 . The compound of formula (I) according to claim 1 , wherein

the ring Y forms together with the pyridine- or pyridazine-ring respectively a group of formula (II-a), (II-b), (II-g), (II-h), (II-r), (II-s), (II-u) or (II-v)

wherein

* is the point of attachment to the group —O-Q,

# is the point of attachment to the other heterocycle,

p is 0, 1 or 2,

x 1 is 1 or 2,

x 2 is 0, 1 or 2,

R 7A is hydrogen or C 1 -C 4 -alkyl,

R 7B is hydrogen, fluoro, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy,

R 7C is hydrogen, fluoro, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy,

R 7D is hydrogen,

R 7E is hydrogen,

R 7F is hydrogen,

R 7K is hydroxyl, C 1 -C 4 -alkyl or C 1 -C 4 -alkoxy.

7 . The compound of formula (I) according to claim 1 , wherein

the ring Y forms together with the pyridine- or pyridazine-ring respectively a group of formula (II-a), (II-g), (II-h) or (II-r),

wherein

is the point of attachment to the group —O-Q, # is the point of attachment to the other heterocycle,

p is 0 or 1,

x 1 is 1 or 2,

R 7A is hydrogen,

R 7B is hydrogen or C 1 -C 4 -alkyl,

R 7C is hydrogen,

R 7D is hydrogen,

R 7E is hydrogen,

R 7F is hydrogen, and

R 7K is C 1 -C 4 -alkyl.

8 . A composition comprising at least one compound of formula (I) according to claim 1 and at least one carrier and/or surfactant.

9 . A method for controlling harmful microorganisms in crop protection and in the protection of materials, comprising

applying at least one compound of formula (I) according to claim 1 ; and/or

a composition comprising at least one compound of formula (I) according to claim 1 and at least one carrier and/or surfactant to the harmful microorganisms and/or their habitat.

10 . The method of claim 9 , wherein the harmful microorganisms comprises phytopathogenic harmful fungi.

11 . A process for preparing a compound of formula (I-a-1):

wherein A 1 , R 3 , R 4 , R 5 , L, R 6 , the ring Y, p, R 7 and Q are defined as in claim 1 and

A 2 is O,

T is hydrogen, and

m is 1 or 2,

by reacting in a process A) a compound of formula (1):

wherein A 1 , the ring Y, p, R 7 and Q are defined as in formula (I-a-1) and

U 1 is hydroxyl, halogen or C 1 -C 6 -alkoxy,

with a compound of formula (2):

wherein m, R 3 , R 4 , R 5 , L and R 6 are defined as in formula (I-a-1) and

W is hydrogen or an aminoprotecting group,

to yield a compound of formula (3):

wherein m, A 1 , R 3 , R 4 , R 5 , L, R 6 , the ring Y, p, R 7 and Q are defined as in formula (I-a-1) and W is defined as in formula (2),

removing the phthalimide group from the compound of formula (3) to yield a compound of formula (4):

wherein m, A 1 , R 3 , R 4 , R 5 , L, R 6 , the ring Y, p, R 7 , Q and W are defined as in formula (3),

and cyclizing the compound of formula (4)

either

when W is hydrogen, by treating the compound of formula (4) with a dehydrating agent, optionally in the presence of a base to obtain directly the compound of formula (I-a-1)

when W is an aminoprotecting group, by treating the compound of formula (4) with a dehydrating agent, optionally in the presence of a base, and then performing a deprotection step to obtain the compound of formula (I-a-1),

or by reacting in a process B) a compound of formula (5):

wherein A 1 , the ring Y, p and R 7 are defined as in formula (I-a-1),

X is halogen, and

U 1 is hydroxyl, halogen or C 1 -C 6 -alkoxy,

with a compound of formula (2):

wherein m, R 3 , R 4 , R 5 , L and R 6 are defined as in formula (I-a-1) and

W is hydrogen or an aminoprotecting group,

to yield a compound of formula (6a):

wherein m, A 1 , R 3 , R 4 , R 5 , L, R 6 , the ring Y, p, R 7 , X and W are defined as before,

removing the phthalimide group from the compound of formula (6a) to yield a compound of formula (6b):

wherein m, A 1 , R 3 , R 4 , R 5 , L, R 6 , the ring Y, p, R 7 , X and W are defined as in formula (6a),

cyclizing the compound of formula (6b)

either

when W is hydrogen, by treating the compound of formula (6b) with a dehydrating agent, optionally in the presence of a base to obtain directly a compound of formula (7)

when W is an aminoprotecting group, by treating the compound of formula (6b) with a dehydrating agent, optionally in the presence of a base, and then performing a deprotection step to obtain the compound of formula (7):

wherein m, A 1 , R 3 , R 4 , R 5 , L, R 6 , the ring Y, p, R 7 and X are defined as before,

and reacting the compound of formula (7) with a compound of formula (8):

wherein Q is defined as above, in the presence of a base and optionally in the presence of a suitable copper salt or complex to obtain a compound of formula (I-a-1).

12 . The process of claim 11 , wherein aminoprotecting group is tert-butoxycarbonyl, benzyl, allyl or (4-methoxyphenyl)methyl.

13 . The process of claim 11 , wherein X is bromo.