Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
153848 | Chemical Engineering Journal | 2007 | 6 Pages |
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.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
O. Lanitou, D. Dimotikali, E. Yannakopoulou, K. Papadopoulos,