METAL COMPLEXES AND A PROCESS OF PREPARING THEM
A compound of the formula II (I) in which X is substituted pyrrolide with the general structure of (II) in which R a -R d are independently selected from H, C1-C4 alkyl, C1-C4 alkoxy, aryl, aryloxy, dialkylamino, diarylamino, halogen, trifluoromethyl, cyano, nitro, sulfonyl and sulfinyl. Y is C1-C6 alkoxy, C1-C10 aryloxy, optionally substituted; R 1 is selected from H, C1-C12 alkyl and 5- to 18-membered aryl, optionally substituted; R 2 is selected from C1-C12-alkyl, 5- to 18-membered aryl, optionally substituted; R 3 is selected from C1-C12 alkyl, 5- to 18-membered aryl, optionally substituted; and 15 12 4 -R11 are independently selected from H, C1-C4 alkyl and halogen. The compounds are particularly effective precursors of metathesis catalysts for the polymerisation of dicyclopentadiene.
1 . A compound of the formula II
in which
X is substituted pyrrolide with the general structure of
in which R a -R d are independently selected from H, C1-C4 alkyl, C1-C4 alkoxy, aryl, aryloxy, dialkylamino, diarylamino, halogen, trifluoromethyl, cyano, nitro, sulfonyl and sulfinyl;
Y is selected from C1-C6 alkoxy and C1-C10 aryloxy, both of which may be substituted with alkoxy, aryloxy, dialkylamino, diarylamino, halogen, trifluoromethyl, cyano, nitro, sulfonyl and sulfinyl
R 1 is selected from H, C1-C12 alkyl and 5- to 18-membered aryl, both of which may be substituted with one or more of C1-C12-alkyl, 5- to 18-membered aryl, C1-C12-alkyloxy, di-(C1-C4-alkyl)amino, halogen, trifluoromethyl, cyano and nitro residues;
R 2 is selected from C1-C12-alkyl and 5- to 18-membered aryl, both of which may be substituted with one or more of C1-C12 alkyl, 5- to 18-membered aryl, C1-C12-alkyloxy, di(C1-C4alkyl)amino, halogen, trifluoromethyl, cyano, nitro residues;
R 3 is selected from C1-C12 alkyl and 5- to 18-membered aryl, both of which may be substituted with one or more of C1-C12 alkyl, 5- to 18-membered aryl, C1-C12-alkoxy, di(C1-C4-alkyl)amino, halogen, trifluoromethyl, cyano and nitro residues; and,
R 4 -R 11 are independently selected from H, C1-C4 alkyl and halogen.
2 . A compound according to claim 1 , in which:
in X, R b and R c are H, and R a and R d are independently selected from H, methyl and phenyl;
R 1 and R 2 are selected from H, C1-C5 alkyl and 5- to 10-membered aryl, which may be substituted with one or more of C1-C4-alkyl, halogen and trifluoromethyl, with the proviso that only one of R 1 and R 2 can be H;
R 3 is selected from C1-C5 alkyl and 5- to 10-membered aryl, both of which may be substituted with one or more of C1-C4 alkyl, 5- to 10-membered aryl and C1-C4-alkoxy; and
R 4 -R 11 are independently selected from H, C1-C4 alkyl and halogen.
3 . A compound according to claim 2 , in which
in X, R b and R c are H, and R a and R d are both methyl or both phenyl;
R 1 and R 2 are selected such that one of them is H and the other is selected from C1-C5 alkyl and 5- to 10-membered aryl, which may be substituted with one or more of C1-C4-alkyl, halogen and trifluoromethyl;
R 3 is selected from C1-C5 alkyl and 5- to 10-membered aryl, which may be substituted with one or more of C1-C4 alkyl, 5- to 10-membered aryl, C1-C4-alkoxy, halogen, and trifluoromethyl;
R 4 -R 11 are hydrogen.
4 . A compound according to claim 1 , selected from compounds of the Formulae III-VI:
5 . A compound according to claim 1 , selected from the compounds of the Formulae III-V:
6 . Use of a compound according to claim 1 in the preparation of a polymer of dicyclopentadiene.