A pyrazolyl acrylic acid derivative having plant fungicidal activity of formula (I): ##STR1## wherein: R.sub.1 and R.sub.2 are independently hydrogen or C.sub.1 -C.sub.5 alkyl; A is a group of the formula: ##STR2## wherein X is independently hydrogen; halogen; cyano; nitro; C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.11 alkenyl, C.sub.1 -C.sub.10 alkoxy, C.sub.2 -C.sub.11 alkenyloxy, C.sub.2 -C.sub.11 alkynyloxy, C.sub.2 -C.sub.11 alkylcarbonyl or C.sub.2 -C.sub.11 alkylcarbonyloxy optionally substituted with one or more substituents selected from halogen, nitro, cyano, trifluoromethyl and C.sub.1 -C.sub.5 alkoxy; or C.sub.7 -C.sub.13 arylcarbonyl, C.sub.4 -C.sub.9 cycloalkylcarbonyloxy, C.sub.7 -C.sub.13 arylcarbonyloxy, C.sub.6 -C.sub.12 aryl, C.sub.6 -C.sub.12 aryloxy, C.sub.2 -C.sub.13 heteroaryl having 1-3 heteroatom(s) selected from oxygen, sulfur, and nitrogen, C.sub.2 -C.sub.13 heteroaryloxy having 1-3 heteroatom(s) selected from oxygen, sulfur, and nitrogen, C.sub.7 -C.sub.12 aralkyl or C.sub.7 -C.sub.12 aralkyloxy optionally substitutes with one or more substituents selected from halogen, nitro, cyano, trifluoromethyl, C.sub.1 -C.sub.5 alkyl, and C.sub.1 -C.sub.5 alkoxy; m is 1 or 2; and n is an 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.
一种具有植物杀菌活性的
吡唑基
丙烯酸衍
生物,其
化学式为(I):##STR1## 其中:R.sub.1和R.sub.2独立地表示氢或C.sub.1-C.sub.5烷基;A表示下列式的基团:##STR2## 其中,X独立地表示氢、卤素、
氰基、硝基、C.sub.1-C.sub.10烷基、C.sub.2-C.sub.11烯基、C.sub.1-C.sub.10烷氧基、C.sub.2-C.sub.11烯氧基、C.sub.2-C.sub.11炔氧基、C.sub.2-C.sub.11烷基羰基或C.sub.2-C.sub.11烷基羰氧基,所述基团可以选择一个或多个取代基,所述取代基被选择自卤素、硝基、
氰基、三
氟甲基和C.sub.1-C.sub.5烷氧基;或C.sub.7-C.sub.13芳基羰基、C.sub.4-C.sub.9环烷基羰氧基、C.sub.7-C.sub.13芳基羰氧基、C.sub.6-C.sub.12芳基、C.sub.6-C.sub.12芳基氧基、C.sub.2-C.sub.13杂芳基,其具有1-3个从氧、
硫和氮中选择的杂原子,C.sub.2-C.sub.13杂芳基氧基,其具有1-3个从氧、
硫和氮中选择的杂原子,C.sub.7-C.sub.12芳基烷基或C.sub.7-C.sub.12芳基烷氧基,可以选择一个或多个取代基,所述取代基被选择自卤素、硝基、
氰基、三
氟甲基、C.sub.1-C.sub.5烷基和C.sub.1-C.sub.5烷氧基;m为1或2;n为1-5的整数;或两个X可以与它们连接的苯环或
噻唑环一起形成融合环;B为甲氧基羰基或
氰基。