Patent ID: 6348460
Filing Date: 2002-02-19
Classification: A01N,C07D

Abstract:
A 1,2,3-thiadiazole derivative represented by the formula (I)â€²: wherein R1 represents hydrogen atom, (C1-C6) alkyl group, halo (C1-C6) alkyl group or (C3-C6) cycloalkyl group; and R2 represents a group of the formula (A): wherein R3, which may be same or different, represents halogen atom, cyano group, nitro group, hydroxyl group, (C1-C6) alkyl group, halo (C1-C6) alkyl group, (C1-C6) alkoxy group, halo (C1-C6) alkoxy group or carboxyl group, n represents an integer of 0 to 3, and R4 represents hydrogen atom, halogen atom, cyano group, nitro group, hydroxyl group, (C1-C6) alkyl group, halo (C1-C6) alkyl group, (C1-C6) alkoxy group, halo (C1-C6) alkoxy group or carboxyl group, further, R3 or R3 and R4 may be taken conjointly with a carbon atom of the adjacent phenyl group to form a (C5-C6) alkenylene ring, and X and Y may be same or different and represent oxygen atom or sulfur atom; provided that when R1 is hydrogen atom, methyl group or trifluoromethyl group and n is 0, then R4 is not hydrogen atom, halogen atom, nitro group, (C1-C4) alkyl group, halo (C1-C4) alkyl group, halo (C1-C4) alkoxy group or cyano group.