Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1326562 | Journal of Organometallic Chemistry | 2009 | 4 Pages |
Abstract
The preparation of methyl (R)-o-chloromandelate via Ru-catalyzed asymmetric hydrogenation and transfer hydrogenation was investigated. With Ru-(R,R)-2,4,6-triisopropyl C6H2SO2-DPEN as the catalyst and HCOOH–Et3N azeotrope as the hydrogen donor, up to 92% ee was obtained in an optional condition. The synthesis of (S)-Clopidogrel was also studied.
Graphical abstractThe preparation of methyl (R)-o-chloromandelate via Ru-catalyzed asymmetric hydrogenation and transfer hydrogenation was investigated. With Ru-(R,R)-2,4,6-i-Pr3-C6H2SO2DPEN as the catalyst and HCOOH–Et3N azeotrope as the hydrogen donor, up to 92% ee was obtained in an optional condition.Figure optionsDownload full-size imageDownload as PowerPoint slide
Related Topics
Physical Sciences and Engineering
Chemistry
Inorganic Chemistry
Authors
Lu Yin, Wenjun Shan, Xian Jia, Xingshu Li, Albert S.C. Chan,