申请人:Sagami Chemical ResearchCenter
公开号:US04500733A1
公开(公告)日:1985-02-19
A cyclopropanecarboxylic acid of the formula ##STR1## is prepared by the reaction of a compound of the formula ##STR2## with an alkali metal hydroxide or alkaline earth metal hydroxide in an ether type solvent. R.sup.1, R.sup.2, and R.sup.4 each independently is hydrogen or a hydrocarbon residue, R.sup.3 is hydrogen or lower alkyl, X is halogen, and A is --CH.sub.2 --CX, 3 or --CH.dbd.CX.sub.2.
式为##STR1##的环丙烷羧酸可通过式为##STR2##的化合物与乙醚型溶剂中的碱金属氢氧化物或碱土金属氢氧化物反应制备。其中,R.sup.1、R.sup.2和R.sup.4各自独立地为氢或烃基残基,R.sup.3为氢或较低烷基,X为卤素,A为--CH.sub.2--CX,3或--CH.dbd.CX.sub.2。