General Approach To Construct Azepino[2,3-<i>b</i>:4,5-<i>b</i>′]diindoles, Azocino[2,3-<i>b</i>:4,5-<i>b</i>′]diindoles, and Azonino[2,3-<i>b</i>:4,5-<i>b</i>′]diindoles via Rh(II)-Catalyzed Reactions of 3-Diazoindolin-2-imines with 3-(Bromoalkyl)indoles
作者:Guorong Sheng、Zhenmin Li、Jianming Mao、Ping Lu、Yanguang Wang
DOI:10.1021/acs.joc.9b01169
日期:2019.8.2
3-(3-bromopropyl)indoles, and 3-(4-bromobutyl)indoles, followed by treatment with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in a one-pot operation furnished azepino[2,3-b:4,5-b′]diindoles, azocino[2,3-b:4,5-b′]diindoles, and azonino[2,3-b:4,5-b′]diindoles, respectively. Structural uniqueness of the products, broad substrate scope, mild reaction conditions, and readily available starting materials are
Rh(II)催化3-重氮吲哚-2-亚胺与3-(2-溴乙基)吲哚,3-(3-溴丙基)吲哚和3-(4-溴丁基)吲哚的反应,然后用1,一锅操作中的8-diazabicyclo [5.4.0] undec-7-ene(DBU)提供了azepino [2,3- b:4,5- b ']二吲哚,azocino [2,3- b:4, 5- b ']二吲哚和azonino [2,3- b:4,5- b ']二吲哚。产品的结构独特性,广泛的底物范围,温和的反应条件和易于获得的起始原料是该方法的优点。