Highly Enantioselective Reduction of β-Amino Nitroolefins with a Simple N-Sulfinyl Urea as Bifunctional Catalyst
作者:Xiang-Wei Liu、Yan Yan、Yong-Qiang Wang、Chao Wang、Jian Sun
DOI:10.1002/chem.201201192
日期:2012.7.23
Simple but effective: A structurally simple N‐sulfinyl urea was found to be a highly efficient bifunctional catalyst, which allows for the development of a novel pathway for the construction of chiral β‐amino nitroalkanes through enantioselective reduction of β‐amino nitroolefins by trichlorosilane. High yields and excellent enantioselectivities were obtained for a broad range of β‐arylamino nitroolefin
简单但有效:发现结构简单的N-亚磺酰基尿素是一种高效的双功能催化剂,它允许通过三氯硅烷对映体选择性还原β-氨基硝基烯烃来开发构建手性β-氨基硝基链烷烃的新途径。对于广泛的β-芳基氨基硝基烯烃底物,均获得了高收率和出色的对映选择性(参见方案)。