Base‐Mediated<i>N</i>‐Arylation for the Synthesis of 9<i>H</i>‐Pyrrolo[1,2‐<i>a</i>]indol‐9‐ones and 10<i>H</i>‐Indolo[1,2‐<i>a</i>]indol‐10‐ones
作者:Hongjin Xu、Li Sun、Chuanjun Song
DOI:10.1002/hlca.201800195
日期:2019.1
Treatment of 2‐bromoaryl pyrrole/indol‐2‐yl ketones with cesium carbonate in DMF resulted in the formation of 9H‐pyrrolo[1,2‐a]indol‐9‐ones and 10H‐indolo[1,2‐a]indol‐10‐ones in moderate to excellent isolated yields.
Efficient synthesis of 9H-pyrrolo[1,2-a]indol-9-one derivatives based on active manganese dioxide promoted intramolecular cyclization
作者:Francesca Aiello、Antonio Garofalo、Fedora Grande
DOI:10.1016/j.tet.2009.10.111
日期:2010.1
A series of 9H-pyrrolo[1,2-a]indol-9-ones have been prepared via in-situ sequential oxidation of [2-(1H-pyrrol-1-yl)phenyl]methanols promoted by active manganese dioxide. The procedure led to title compounds in good yields under mild conditions, without the need to isolate the intermediate aldehydes. (C) 2009 Elsevier Ltd. All rights reserved.
Direct cyclization of ortho-(1H-pyrrol-1-yl)aryl and heteroaryl carboxylic acids into fused pyrrolizinones
作者:Francesca Aiello、Antonio Garofalo、Fedora Grande
DOI:10.1016/j.tetlet.2010.10.060
日期:2010.12
A series of fused heterocyclic compounds based on a pyrrolizinone structure have been prepared from ortho-(1H-pyrrol-1-yl)aryl and heteroaryl carboxylic acids by intramolecular Friedel-Crafts acylation promoted by bis(trichloromethyl) carbonate, in generally good yield without using Lewis acid catalysts. (C) 2010 Elsevier Ltd. All rights reserved.