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光学活性的环氧化合物是有机合成的重要原料.不对称环氧化反应可以使潜手性的烯烃转化为带有手性碳的环氧化合物,这个反应在医药、农药、香料等合成上具有重要的意义.有机小分子催化烯烃的不对称环氧化是一种高效,绿色的光学活性环氧化合物的合成方法,目前该类反应主要是通过手性酮和手性亚胺盐来催化实现的.文章介绍了该类反应的催化机理,并概述了这两类有机小分子催化的不对称环氧化反应的研究进展.
An optically active epoxy compound is an important raw material for organic synthesis. Asymmetric epoxidation can convert a latent chiral olefin into an epoxy compound with a chiral carbon. This reaction has the following composition in the fields of medicine, pesticide, perfume, etc. Important significance.Asymmetric epoxidation of olefins catalyzed by small organic molecules is a highly effective and green synthesis method of optically active epoxy compounds. At present, such reactions are mainly catalyzed by chiral ketones and chiral imine salts .The article introduces the catalytic mechanism of this kind of reaction and summarizes the progress of the asymmetric epoxidation catalyzed by these two kinds of organic small molecules.