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。