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Enantioselective Cyanosilylation of Ketones by a Catalytic Double-Activation Method Employing Chiral Lewis Acid and Achiral N-Oxide Catalysts.

✍ Scribed by Fuxue Chen; Xiaoming Feng; Bo Qin; Guolin Zhang; Yaozhong Jiang

Publisher: John Wiley and Sons
Year: 2003
Weight: 123 KB
Volume: 34
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200335016

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## Abstract Double‐activation catalysis promises high catalytic efficiency in the enantioselective cyanosilylation of ketones through the combined use of a Lewis acid and a Lewis base. Catalyst systems composed of a chiral salen–Al complex and an N‐oxide have high catalytic turnovers (200 for aroma