Palladium-Catalyzed Three-Component Regioselective Dehydrogenative Coupling of Indoles, 2-Methylbut-2-ene, and Carboxylic Acids
作者:Xing-Long Zhang、Rui-Li Guo、Meng-Yue Wang、Bao-Yin Zhao、Qiong Jia、Jin-Hui Yang、Yong-Qiang Wang
DOI:10.1021/acs.orglett.1c03776
日期:2021.12.17
Five-carbon (C5) structural units are the fundamental building blocks of many natural products. An unprecedented palladium-catalyzed three-component dehydrogenative cascade coupling of indoles, 2-methylbut-2-ene, and carboxylic acids has been developed. The approach enables the straightforward introduction of a C3′-bonded five-carbon structural unit with a tertiary alcohol quaternary carbon center
五碳 (C5) 结构单元是许多天然产品的基本组成部分。已经开发出一种前所未有的钯催化的吲哚、2-甲基丁-2-烯和羧酸的三组分脱氢级联偶联。该方法能够将具有叔醇季碳中心的 C3' 键合五碳结构单元直接引入吲哚中。该协议采用 2-甲基丁-2-烯作为 C5 源,具有广泛的底物范围、原子和步骤经济以及高化学和区域选择性。