2-(2,2-Dihalovinyl-3,3-dimethylcyclopropyl)vinyl alkanoates in which the alkanoate moiety contains from two to six carbon atoms are new chemical compounds useful as intermediates in the preparation of certain pyrethroid acids. The alkanoates are prepared by reacting 2-(2,2-dihalovinyl-3,3-dimethylcyclopropyl)ethanal with the appropriate alkanoic acid anhydride.
含有2-(2,2-二卤
乙烯基-3,3-二甲基环丙基)
乙烯基的2-烯酸酯是新的
化学化合物,其中烷酸酯基含有2至6个碳原子,可用作某些拟
除虫菊酸的制备中间体。这些烷酸酯是通过将2-(2,2-二卤
乙烯基-3,3-二甲基环丙基)
乙醛与适当的烷酸酐反应制备的。