Ruthenium‐Catalyzed Direct Asymmetric Reductive Amination of Diaryl and Sterically Hindered Ketones with Ammonium Salts and H
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作者:Le' an Hu、Yao Zhang、Qing‐Wen Zhang、Qin Yin、Xumu Zhang
DOI:10.1002/anie.201915459
日期:2020.3.23
A Ru-catalyzed direct asymmetric reductive amination of ortho-OH-substituted diaryl and sterically hindered ketones with ammonium salts is reported. This method represents a straightforward route toward the synthesis of synthetically useful chiral primary diarylmethylamines and sterically hindered benzylamines (up to 97 % yield, 93->99 % ee). Elaborations of the chiral amine products into bioactive
报道了钌盐对铵基取代的邻羟基取代的二芳基和位阻酮的Ru催化的直接不对称还原胺化反应。该方法代表了合成合成有用的手性伯二芳基甲基胺和位阻苄胺的直接途径(产率高达97%,ee达93-> 99%)。通过操纵可除去和可转化的-OH基团,证明了将手性胺产物精制为生物活性化合物和手性配体。