Highly enantioselective synthesis of β-hydroxysulfonamides by asymmetric transfer hydrogenation
作者:Zhicong Geng、Yun Wu、Shifeng Miao、Zongxuan Shen、Yawen Zhang
DOI:10.1016/j.tetlet.2010.12.054
日期:2011.2
A series of optically active β-hydroxy sulfonamides were synthesized for the first time by asymmetric transfer hydrogenation of the corresponding β-ketosulfonamides using the Ru–TsDPEN–HCOOH–Et3N catalytic system, in excellent yields (up to 95%) with excellent diastereo- (up to > 99:1 dr) and enantioselectivities (up to >99% ee).
通过使用Ru–TsDPEN–HCOOH–Et 3 N催化系统,通过相应的β-酮磺酰胺的不对称转移加氢,首次合成了一系列旋光性β-羟基磺酰胺,具有优异的收率(高达95%)和优异的收率。非对映异构体(高达> 99:1 dr)和对映选择性(高达> 99%ee)。