Cis-alkoxy-substituted spirocyclic 1H-pyrrolidine-2,4-dione derivatives serving as pesticides
View Patent ↗The invention relates to a plurality of processes for the preparation of novel cis-alkoxy-substituted spirocyclic 1 H-pyrrolidine-2,4-dione derivatives of the formula (I) in which A, G, X and Y are as defined in the disclosure.
1. A compound of formula (II)
in which
A represents C 1 -C 6 -alkyl,
X represents alkyl, halogen, alkoxy, haloalkyl, or haloalkoxy,
Y represents hydrogen, alkyl, alkoxy, halogen, haloalkyl, or haloalkoxy, with the proviso that only one of the radicals X and Y represents haloalkyl or haloalkoxy, and
R 8 represents C 1 -C 6 -alkyl.
2. A compound of formula (VIII)
in which
A represents C 1 -C 6 -alkyl,
X represents alkyl, halogen, alkoxy, haloalkyl, or haloalkoxy, and
Y represents hydrogen, alkyl, alkoxy, halogen, haloalkyl, or haloalkoxy, with the proviso that only one of the radicals X and Y represents haloalkyl or haloalkoxy.