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US4083863A Process for the preparation of cyclopropane carboxylic acids and esters 失效
制备环丙烷羧酸和酯的方法

Process for the preparation of cyclopropane carboxylic acids and esters
摘要:
Certain derivatives of cyclopropane carboxylic acid and their esters are useful and valuable intermediates for the preparation of broad spectrum pyrethroid type pesticides. The invention provides a novel method for the preparation of the derivatives of cyclopropane carboxylic acid and esters from stable sulfonium ylides.
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