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jian ben yang ji ben jia quan zhi bei fang fa de gai jin
Author(s): 
Pages: 15-16
Year: Issue:  3
Journal: Agrochemicals

Keyword:  间苯氧基苯甲醛制备方法间苯氧基甲苯醚醛二氯苄氯化物溴氰菊酯氯氰菊酯侧链氯化氰戊菊酯;
Abstract: <正> 一、前言间苯氧基苯甲醛(简称醚醛)是氰戊菊酯、氯氰菊酯、溴氰菊酯、氟氰菊酯等的重要中间体。由间苯氧基甲苯低温侧链氯化得到的氯化物(亦称混合氯苄),主要为二氯苄。其组成为二氯苄45~55%;一氯苄25~35%;三氯苄<4%。在50~60%混酸介质中水解制醚醛。其结果:反应5小时的醚醛平均收率达90%;
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