Dynamic kinetic resolution in the stereoselective synthesis of 4,5-diaryl cyclic sulfamidates by using chiral rhodium-catalyzed asymmetric transfer hydrogenation
作者:Juae Han、Soyeong Kang、Hyeon-Kyu Lee
DOI:10.1039/c0cc05289b
日期:——
The dynamic kinetic resolution of 4,5-diaryl cyclic sulfamidate imines was achieved via asymmetric transfer hydrogenation using a HCO(2)H/Et(3)N mixture as the hydrogen source and chiral Rh catalysts (R,R)- or (S,S)-RhCl(TsDPEN)Cp* affording the corresponding cyclic sulfamidates in good yields with up to >20 : 1 dr and up to >99% ee.
通过使用HCO(2)H / Et(3)N混合物作为氢源和手性Rh催化剂(R,R)-或(S ,S)-RhCl(TsDPEN)Cp *以高收率提供相应的环状氨基磺酸盐,最高可达> 20:1 dr,最高可达> 99%ee。