申请人:Central Glass Company, Limited
公开号:EP2522648A1
公开(公告)日:2012-11-14
Provided is a method for producing a difluorocyclopropane compound under milder reaction conditions and with high selectivity and high yield. The method for producing a difluorocyclopropane compound of the present invention is characterized by using sodium bromodifluoroacetate as a difluorocyclopropanation agent. With the disclosed method, a difluorocyclopropane compound can be produced under milder reaction conditions and with a higher conversion rate and a higher yield compared to conventional art. Further, by-products can be reduced significantly, thus allowing waste to be greatly reduced. Accordingly, the production method of the present invention is easy to implement industrially (can be employed on an industrial scale) and is thus extremely practical and useful.
本发明提供了一种在较温和的反应条件下,以高选择性和高产率生产二氟环丙烷化合物的方法。本发明生产二氟环丙烷化合物的方法的特点是使用溴二氟乙酸钠作为二氟环丙烷化剂。与传统技术相比,本发明方法可以在更温和的反应条件下生产二氟环丙烷化合物,并具有更高的转化率和收率。此外,副产物也可显著减少,从而大大减少废物。因此,本发明的生产方法易于在工业上实施(可在工业规模上采用),因而非常实用和有用。