| abstract |
The present invention relates to organic compounds of formula (I), and optionally to their preparation of E / Z isomers, E / Z isomer mixtures and / or tautomers, respectively in free or salt form.n n n Formula In n n n n n n n In the above formula,n n n R 1 is hydrogen or C 1 -C 4 alkyl,n n n R 2 is hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl or the radical —CH 2 B,n n n Het is an unsubstituted or substituted heterocycle radical,n n n B is unsubstituted or substituted phenyl, 3-pyridyl or thiazolyl.n n n The present invention is characterized by hydrolyzing the compounds of formula (IIa) or (IIb), and optionally their E / Z isomers, E / Z isomer mixtures and / or tautomers, respectively, in free or salt form.n n n Formula IIan n n Q-A-Qn n n Formula IIbn n n n n n n n In the above formula,n n n A is a direct bond or an organic radical,n n n U is an organic radical,n n n Q is (1)n n n R 1 , R 2 and Het are as defined above for the compound of formula (I).n n n The invention also relates to a process for the preparation of the compounds of the formulas (IIa), (IIb), (IIIa) and (IIIb) and to the inhibition of pests using the compounds of the formulas (IIa) and (IIb). |