Thiourea-Catalyzed Enantioselective Cyanosilylation of Ketones
作者:Douglas E. Fuerst、Eric N. Jacobsen
DOI:10.1021/ja052511x
日期:2005.6.1
The new chiral amino thiourea catalyst 3d promotes the highly enantioselective cyanosilylation of a wide variety of ketones. The hindered tertiary amine substituent plays a crucial role with regard to both stereoinduction and reactivity, suggesting a cooperative mechanism involving electrophile activation by thiourea and nucleophile activation by the amine.