摘要:
A pyrazolyl acrylic acid derivative having plant fungicidal activity of formula (I): wherein:
R 1 and R 2 are independently hydrogen or C 1 - C s alkyl; A is a group of the formula: wherein X is independently hydrogen; halogen, cyano; nitro; C 1 - C 1 o alkyl, C 2 - C 11 alkenyl, C 1 - C 1 o alkoxy, C 2 - C 11 alkenyloxy, C 2 - C 11 alkynyloxy, C 2 - C 11 alkylcarbonyl or C 2 - C 11 alkylcarbonyloxy optionally substituted with one or more substituents selected from halogen, nitro, cyano, trifluoromethyl and C 1 - C s alkoxy; or C 7 - C 13 arylcarbonyl, C 4 - Cs cycloalkylcarbonyloxy, C 7 - C 13 arylcarbonyloxy, C 6 = C 12 aryl, C 6 - C 12 aryloxy, C 2 - C 13 heteroaryl having 1 - 3 heteroatom(s) selected from oxygen, sulfur, and nitrogen, C 2 -C 13 heteroaryloxy having 1 - 3 heteroatom(s) selected from oxygen, sulfur, and nitrogen, C 7 - C 12 aralkyl or C 7 - C 12 aralkyloxy optionally substitutes with one or more substituents selected from halogen, nitro, cyano, trifluoromethyl, C 1 - C 5 alkyl, and C 1 - Cs alkoxy; m is 1 or 2; and n is a integer of 1 - 5; or two Xs may form a fused ring together with the benzene ring or thiazole ring to which they are attached; and B is methoxycarbonyl or cyano.