METHOD FOR PRODUCING PURIFIED FORMYLCYCLOPROPANE COMPOUND AND INTERMEDIATE OF SUCH FORMYLCYCLOPROPANE COMPOUND
申请人:Sumitomo Chemical Company, Limited
公开号:EP1970369A1
公开(公告)日:2008-09-17
A method for producing a purified formylcyclopropane compound represented by the formula (1) comprising (A) a step of reacting a crude formylcyclopropane compound represented by the formula (1):
wherein R1 represents an alkyl group or the like, with an alkali metal hydrogen sulfite to obtain an alkali metal hydroxymethanesulfonate represented by the formula (2):
wherein R1 represents the same meaning as defined above and M represents an alkali metal, and
(B) a step of reacting an acid, a base or a water-soluble aldehyde with the alkali metal hydroxymethanesulfonate represented by the formula (2) obtained in the above-mentioned step (A) to obtain a purified formylcyclopropane compound represented by the formula (1).
一种生产由式(1)表示的纯甲酰环丙烷化合物的方法,包括 (A) 使由式(1)表示的粗甲酰环丙烷化合物发生反应的步骤:
其中 R1 代表烷基或类似基团,与碱金属亚硫酸氢盐反应,得到由式(2)代表的碱金属羟甲基磺酸盐:
其中 R1 代表与上述定义相同的含义,M 代表碱金属,以及
(B) 将酸、碱或水溶性醛与上述步骤(A)中得到的式(2)代表的碱金属羟甲基磺酸盐反应, 得到式(1)代表的纯化甲酰基环丙烷化合物。