Highly Enantioselective Hydrogenation of Amides via Dynamic Kinetic Resolution Under Low Pressure and Room Temperature
作者:Loorthuraja Rasu、Jeremy M. John、Elanna Stephenson、Riley Endean、Suneth Kalapugama、Roxanne Clément、Steven H. Bergens
DOI:10.1021/jacs.6b12254
日期:2017.3.1
High-throughput screening and lab-scale optimization were combined to develop the catalytic system trans-RuCl2((S,S)-skewphos)((R,R)-dpen), 2-PrONa, and 2-PrOH. This system hydrogenates functionalized α-phenoxy and related amides at room temperature under 4 atm H2 pressure to give chiral alcohols with up to 99% yield and in greater than 99% enantiomeric excess via dynamic kinetic resolution.
高通量筛选和实验室规模优化相结合,开发了催化系统 trans-RuCl2((S,S)-skewphos)((R,R)-dpen)、2-PrONa 和 2-PrOH。该系统在室温和 4 个大气压的 H2 压力下氢化功能化的 α-苯氧基和相关酰胺,通过动态动力学拆分以高达 99% 的产率和大于 99% 的对映体过量得到手性醇。