申请人:IHARA CHEMICAL INDUSTRY CO., LTD.
公开号:EP0900803A1
公开(公告)日:1999-03-10
The present invention provides a process for producing 1-alkoxy-1-trimethylsilyloxycyclopropane represented by the following general formula:
by reacting microgranular metallic sodium dispersed in a hydrocarbon solvent, β-halogenocarboxylic acid ester represented by the following general formula:
and chlorotrimethylsilane.
According to the present invention, by using no ether compound solvent (the ether compound solvent has various problems in safety) and using microgranular metallic sodium dispersed in a hydrocarbon solvent, 1-alkoxy-1-trimethylsilyloxycyclopropane can be industrially produced simply (no special apparatus is required) at an advantageous cost at a yield at least equal to that obtained when an ether is used as solvent.
本发明提供了一种生产通式如下的 1-烷氧基-1-三甲基硅氧基环丙烷的工艺:
将分散在烃类溶剂中的微颗粒金属钠、通式如下的 β-卤代羧酸酯和三甲基氯硅烷反应:
和氯三甲基硅烷。
根据本发明,通过不使用醚类化合物溶剂(醚类化合物溶剂在安全性方面存在各种问题)和使用分散在烃类溶剂中的微颗粒金属钠,可以简单地工业化生产 1-烷氧基-1-三甲基硅氧基环丙烷(不需要特殊装置),且成本低廉,产率至少与使用醚类溶剂时的产率相当。