一、概述三氟氯氰菊酯(cyhalothrin)是重要的拟除虫菊酯杀虫剂,其化学结构式如下:三氟氯氰菊酯可由三氟氯菊酸和氰醇两个重要的中间体缩合而成。在三氟氯菊酸结构中,三元环上2个手 I. Overview Cyhalothrin is an important pyrethroid insecticide. Its chemical structure is as follows: Cyhalothrin can be formed by the condensation of two important intermediates, trichlorfonic acid and cyanohydrin. In the trifluronic acid structure, three rings on the two hands