Enantioselective Synthesis of Tertiary α-Hydroxy Phosphonates Catalyzed by Carbohydrate/Cinchona Alkaloid Thiourea Organocatalysts
作者:Shasha Kong、Weidong Fan、Guiping Wu、Zhiwei Miao
DOI:10.1002/anie.201204287
日期:2012.8.27
A pinch of sugar: The new bifunctional carbohydrate/cinchonine‐based thiourea 1 has been designed for the asymmetric addition reaction of α‐ketophosphonates and trimethylsilyl cyanide, the product of which can be hydrolyzed to afford tertiary α‐hydroxy phosphonates with excellent enantioselectivities.