acrylamides have low electrophilicity and are yet to be exploited in the enantioselective Rauhut–Currier reaction. By exploiting electron-withdrawing protection of the amide and moderate nucleophilicity N-heterocyclic carbenes, such substrates have been converted to enantioenriched quinolones. The reaction proceeds with complete diastereoselectivity, good yield, and modest enantioselectivity. Derivatizations
β-取代的
丙烯酰胺具有低亲电性,尚未在对映选择性 Rauhut-Currier 反应中得到利用。通过利用酰胺和中等亲核N中的吸电子保护-杂环卡宾,这种衬底都被转换为对映体富集喹诺
酮类。该反应以完全的非对映选择性、良好的产率和适度的对映选择性进行。据报道,衍生化以及计算研究支持通过氮的吸电子保护降低酰胺键特性。