申请人:Zeneca Limited
公开号:US05750769A1
公开(公告)日:1998-05-12
The invention provides novel compounds of formula: CF.sub.3 --CXCl--CH(OH)CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --CO.sub.2 R(I) where X represents chloro or bromo and R represents hydrogen or alkyl of up to 4 carbon atoms, processes for preparing them and their use as intermediates in the preparation of insecticidal cyclopropane derivatives. Also provided are novel compounds of formula: BrCH.sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --CO.sub.2 R(IV) wherein R represents alkyl of up to 4 carbon atoms, useful as intermediates in the preparation of the compounds of formula I.
本发明提供了新型化合物的公式:CF.sub.3 --CXCl--CH(OH)CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --CO.sub.2 R(I),其中X代表氯或溴,R代表氢或碳数不超过4的烷基,制备它们的过程以及它们作为杀虫环丙烷衍生物制备中间体的用途。还提供了新型化合物的公式:BrCH.sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --CO.sub.2 R(IV),其中R代表碳数不超过4的烷基,有用于制备公式I化合物的中间体。