Article ID Journal Published Year Pages File Type
153848 Chemical Engineering Journal 2007 6 Pages PDF
Abstract

Novel functionalized organo-inorganic chiral catalysts have been prepared in two steps from activated silica gel and chiral organic auxiliaries, such as (+)-cinchonine or (S)-(−)-nicotine. These new catalysts have been tested in a solid–liquid–liquid three-phase system for the asymmetric epoxidation of α,β-enones and the asymmetric alkylation reactions of glycine derivatives. The obtained stereoselectivities are negligible for the first case (ee <2%) and appreciable (ee 25–55%) for the second one.

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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