Benzofurans of the formula ##STR1## wherein R.sup.1 is hydrogen, nitro, amino, phthalimido or acetamido, R.sup.2 is at least one of halo, cyano, alkyl(C.sub.1 -C.sub.8), cycloalkyl(C.sub.3 -C.sub.8), hydroxy, alkoxy(C.sub.1 -C.sub.8), acyl(C.sub.1 -C.sub.8), acyloxy(C.sub.1 -C.sub.8), alkoxy(C.sub.1 -C.sub.8)carbonyl, alkoxy(C.sub.1 -C.sub.8)carbonylalkyl(C.sub.1 -C.sub.8), phenyl, phenyloxy, trifluoromethyl or dialkyl(C.sub.1 -C.sub.8)amino, m is 0-3, and at least one of the carbon atoms of the benzene ring of said benzofuran is substituted. The compounds are intermediates in the preparation of pyrazoline insecticides.
公式为##STR1##的
苯并呋喃化合物,其中R.sup.1是氢、硝基、
氨基、邻苯二甲
酰亚胺或乙
酰亚胺,R.sup.2至少是以下化合物之一:卤素、
氰基、烷基(C.sub.1-C.sub.8)、环烷基(C.sub.3-C.sub.8)、羟基、烷氧基(C.sub.1-C.sub.8)、酰基(C.sub.1-C.sub.8)、酰氧基(C.sub.1-C.sub.8)、烷氧基(C.sub.1-C.sub.8)羰基、烷氧基(C.sub.1-C.sub.8)羰基烷基(C.sub.1-C.sub.8)、苯基、苯氧基、三
氟甲基或二烷基(C.sub.1-C.sub.8)
氨基,m为0-3,且苯环中至少有一个碳原子被取代。这些化合物是制备
吡唑啉类
杀虫剂的中间体。