enantioselective sulfoxidation of various sulfides has been achieved by a N,N'-dioxide-iron(iii) complex with 35% aq. H2O2 as the oxidant. The utility of the current method was demonstrated by asymmetric gram-scale synthesis of drug molecule (R)-modafinil. Moreover, a possible working mode was provided to elucidate the chiral induction.
An unconventional biocatalytic oxidation-reduction cascade system with cofactor regeneration was established for the synthesis of enantiopure sulfoxides using prochiral sulfildes as substrates. Heteroaryl alkyl, aryl alkyl and dialkyl sulfoxides in R configuration were prepared in >90 % conversion with >90 % ee through the cascade catalysis of MsrA, Fus-SMO and three other auxiliary enzymes (Trx, Trx-R
建立了一种具有辅因子再生的非常规生物催化氧化还原级联系统,用于以前手性硫醚为底物合成对映体纯亚砜。通过 MsrA、Fus-SMO 和其他三种辅助酶(Trx、Trx-R 和 GDH)的级联催化,制备了R构型的杂芳基烷基、芳基烷基和二烷基亚砜,转化率 >90% , ee >90%。