Asymmetric reduction of ketones via whole cell bioconversions and transfer hydrogenation: complementary approaches
作者:Annemarie Hage、Daniëlle G.I Petra、Jim A Field、Dick Schipper、Joannes B.P.A Wijnberg、Paul C.J Kamer、Joost N.H Reek、Piet W.N.M van Leeuwen、Ron Wever、Hans E Schoemaker
DOI:10.1016/s0957-4166(01)00172-0
日期:2001.5
alcohols could be obtained with moderate to high enantioselectivities (e.e.s of up to 98%). The biocatalytic and transfer hydrogenation approaches appear to be complementary. The biocatalytic approach is the most suitable for the enantioselective reduction of chloro-substituted (aryl) ketones, whereas in the reduction of α,β-unsaturated compounds excellent results were obtained using the catalytic hydrogenation
使用白腐真菌Merulius tremellosus ono991的整个细胞作为生物催化还原系统,并用钌(II)-氨基醇和铱(I)-氨基硫化物络合物作为金属催化剂,将前手性芳基和二烷基酮对映体还原为相应的醇。不对称转移氢化。结果的比较表明,可以以中等至高对映选择性(高达98%的对映体)获得相应的手性醇。生物催化和转移氢化方法似乎是互补的。生物催化方法最适合于氯取代的(芳基)酮的对映选择性还原,而在α,β-不饱和化合物的还原中,使用催化氢化方案可获得出色的结果。