Silver- and Gold-Mediated Domino Transformation: A Strategy for Synthesizing Benzo[e]indolo[1,2-a]pyrrolo/pyrido[2,1-c][1,4]diazepine-3,9-diones
摘要:
We reported a strategy for the synthesis of fused heterocyclic compounds benzo[e]indolo[1,2-a]pyrrolo/pyrido[2,1-c][1,4]diazepine-3,9-diones via an AgSbF(6)/gold-complex catalyzed one-pot cascade transformation. The strategy is tolerant of a broad range of substrates and affords a series of intriguing fused diazepinedione heterocycles.
Visible‐Light‐Induced Aerobic Intramolecular Cyclization of (2‐Aminophenyl)(1<i>H</i>‐indol‐1‐yl)methanones: Direct Access to Bioactive Tryptanthrin and its Derivatives
Visible-light-induced mild, transition metal, base, and photocatalyst-free green protocol has been developed for the synthesis of tryptanthrin and its derivatives. The present reaction is compatible with a wide range of substrates with good to high yields. Further, a novel synthetic transformation of tryptanthrin derivatives has been achieved by the decarboxylative addition of cyanoacetic acid for
Synthesis of N‐Fused Indolines via Copper (II)‐Catalyzed Dearomatizing Cyclization of Indoles
作者:Jingyu Zhang、Wei Xia、Saskia Huda、Jas S. Ward、Kari Rissanen、Markus Albrecht
DOI:10.1002/adsc.202100290
日期:2021.6.21
Herein, a copper(II)-catalyzed dearomative cyclization amination of N-(2-aminobenzoyl) indoles is presented. Under mild reaction conditions, the cyclization proceeds to afford tetracyclic indolines by forming a new C−N bond in good yields. The tetracyclic 5a,6-dihydroindolo[2,1-b]quinazolin-12(5H)-ones are obtained in good to excellent yields (up to 99% yield) by using trifluoromethanesulfonic acid
Silver- and Gold-Mediated Domino Transformation: A Strategy for Synthesizing Benzo[<i>e</i>]indolo[1,2-<i>a</i>]pyrrolo/pyrido[2,1-<i>c</i>][1,4]diazepine-3,9-diones
作者:Yu Zhou、Jian Li、Xun Ji、Wei Zhou、Xu Zhang、Wangke Qian、Hualiang Jiang、Hong Liu
DOI:10.1021/jo101727r
日期:2011.3.4
We reported a strategy for the synthesis of fused heterocyclic compounds benzo[e]indolo[1,2-a]pyrrolo/pyrido[2,1-c][1,4]diazepine-3,9-diones via an AgSbF(6)/gold-complex catalyzed one-pot cascade transformation. The strategy is tolerant of a broad range of substrates and affords a series of intriguing fused diazepinedione heterocycles.