Strong and Confined Acids Catalyze Asymmetric Intramolecular Hydroarylations of Unactivated Olefins with Indoles
作者:Pinglu Zhang、Nobuya Tsuji、Jie Ouyang、Benjamin List
DOI:10.1021/jacs.0c12042
日期:2021.1.20
asymmetric hydroarylations of activated, electron-poor olefins with activated, electron-rich arenes have been described. In contrast, only a few approaches that can handle unactivated, electronically neutral olefins have been reported and invariably require transition metal catalysts. Here we show how an efficient and highly enantioselective catalytic asymmetric intramolecular hydroarylation of aliphatic
近年来,已经描述了几种活化的贫电子烯烃与活化的富电子芳烃的有机催化不对称氢化芳基化。相比之下,只有少数方法可以处理未活化的电子中性烯烃,并且总是需要过渡金属催化剂。在这里,我们展示了如何使用强且受限的 IDPi 布朗斯台德酸催化剂实现脂肪族和芳香族烯烃与吲哚的高效且高度对映选择性催化不对称分子内加氢芳基化。这种前所未有的转化是由叔碳正离子形成实现的,并以优异的对映选择性和广泛的底物范围建立了四元立体中心,包括脂肪族碘化物、叠氮化物和烷基硼酸酯,