Regio- and Stereoselective Synthesis of Diverse 3,4-Dihydro-2-quinolones through Catalytic Hydrative Cyclization of Imine- and Carbonyl-Ynamides with Water
作者:Bo-Han Zhu、Ying-Qi Zhang、Hao-Jin Xu、Long Li、Guo-Cheng Deng、Peng-Cheng Qian、Chao Deng、Long-Wu Ye
DOI:10.1021/acscatal.0c04786
日期:2021.2.5
herein is an efficient copper-catalyzed tandem alkyne hydration/intramolecular Mannich reaction of imine-ynamides with water. This method allows efficient and diastereodivergent synthesis of valuable 3,4-dihydro-2-quinolones with high regio-, diastereo-, and enantioselectivity. Moreover, this hydrative cyclization can also be applicable to the hydrative aldol reaction of carbonyl-ynamides with water to
在过去的几十年中,过渡金属催化的炔烃水合反应引起了人们的极大兴趣,因为这种方法将导致合成有用的羰基化合物的简便有效形成。但是,很少研究过渡金属催化的炔烃水合引发的串联反应,因为它们的金属烯醇盐中间体通常容易进行原金属脱金属反应,而不是被其他类型的亲电试剂进一步捕获。本文描述了亚胺-酰胺与水的有效铜催化的串联炔烃水合/分子内曼尼希反应。这种方法可以有效且非对映地合成有价值的3,4-二氢-2-喹诺酮类化合物,具有很高的区域,非对映异构和对映选择性。此外,