Enantioselective 1,4-Addition Reactions of Diphenyl Phosphite to Nitroalkenes Catalyzed by an Axially Chiral Guanidine
作者:Masahiro Terada、Takashi Ikehara、Hitoshi Ube
DOI:10.1021/ja0746619
日期:2007.11.1
A highly enantioselective 1,4-addition reaction of nitroalkenes with diphenyl phosphite was successfully accomplished using a newly developed axially chiral guainidine catalyst. A broad range of nitroalkenes, bearing not only aromatic but also aliphatic substituents, is applicable to the present enantioselective reaction. The method provides an efficient protocol to synthesize enantioenriched β-amino
使用新开发的轴向手性胍催化剂成功地完成了硝基烯烃与亚磷酸二苯酯的高度对映选择性 1,4-加成反应。广泛的硝基烯烃,不仅带有芳香族取代基,而且带有脂肪族取代基,适用于本发明的对映选择性反应。该方法为合成具有生物学和药学重要性的富含对映体的 β-氨基膦酸酯衍生物提供了一种有效的方案。