Iridium-catalyzed regio- and enantioselective allylic alkylation of fluorobis(phenylsulfonyl)methane
作者:Wen-Bo Liu、Sheng-Cai Zheng、Hu He、Xiao-Ming Zhao、Li-Xin Dai、Shu-Li You
DOI:10.1039/b914315g
日期:——
Highly regio- and enantioselective allylic alkylation of fluorobis(phenylsulfonyl)methane (FBSM) has been realized by [Ir(COD)Cl](2)/phosphoramidite, affording enantiopure fluorobis(phenylsulfonyl)methylated compounds bearing a terminal alkene, which could be converted to monofluoro-methylated ibuprofen in just two steps without loss of the optical purity (95% ee).
[Ir(COD)Cl](2)/亚磷酰胺实现了氟双(苯磺酰基)甲烷(FBSM)的高度区域和对映选择性烯丙基烷基化,提供了带有末端烯烃的对映体纯的氟双(苯磺酰基)甲基化化合物,可以将其转化只需两步即可制得单氟甲基化布洛芬,而不会损失光学纯度(95%ee)。