Enantioselective hydrogenation of α,β-disubstituted nitroalkenes
作者:Shengkun Li、Kexuan Huang、Xumu Zhang
DOI:10.1039/c4cc03942d
日期:——
The first highly chemo- and enantioselective hydrogenation of α,β-disubstituted nitroalkenes was accomplished with rhodium/JosiPhos-J2 as a catalyst, with the yield and enantioselectivity of up to 95% and 94%, respectively. The α-chiral nitroalkanes will provide an entry to valuable chiral amphetamines which are otherwise not so easily accessed.
Highly selective: The reduction of α‐methyl‐substituted nitroalkenes succeeds in a highly enantioselective fashion with an ene reductase from Gluconobacter oxydans. Under optimized reaction conditions the desired nitroalkanes are formed with enantiomeric excesses of up to 95% in these biotransformations.