The enantioface-differentiating hydrogenation of β-ketosulfone (I) over (R,R)-tartaric acid-NaBr-modified Raney nickel ((R,R)-TA-NaBr-MRNi) gave β-nydroxysulfone (II) in quantitative chemical yield and 70% optical yield. The optically pure II was obtained from the hydrogenation product by the preferential recrystallization method.
在(R,R)-
酒石酸-
溴化钠修饰的雷尼
镍((R,R)-TA-NaBr-MRNi)上,β-酮砜(I)的氢化反应产生了β-羟基砜(II),
化学产率和光学产率分别为100%和70%。通过优先重结晶法从氢化产物中获得了光学纯的II。