Copper-Catalyzed Tandem Cyclization/Direct C(sp<sup>2</sup>)–H Annulation of Azide–Ynamides via α-Imino Copper Carbenes: Access to Azepino[2,3-<i>b</i>:4,5-<i>b</i>′]diindoles
作者:Yi Chen、Yao-Hong Yan、Bo-Han Zhu、Fan Chen、Long Li、Peng-Cheng Qian
DOI:10.1021/acs.orglett.3c00434
日期:2023.3.31
A novel copper-catalyzed tandem cyclization/direct C(sp2)–H annulation of phenyl azide–ynamides via α-imino copper carbenes has been developed, which provides a concise and flexible approach for the construction of a range of valuable azepino[2,3-b:4,5-b′]diindoles in mostly good to excellent yields with high chemoselectivities. This tandem reaction also exhibits a broad substrate scope, excellent
开发了一种新型的铜催化串联环化/直接 C(sp 2 )-H 环化苯基叠氮-ynamides 通过 α-亚氨基铜卡宾,为构建一系列有价值的氮杂庚啶提供了一种简洁灵活的方法[2 ,3- b :4,5- b ']二吲哚的收率大多良好,具有高化学选择性。该串联反应还表现出广泛的底物范围、优异的官能团耐受性、操作简单和反应条件温和。