Synthesis of 9,9-Disubstituted 9H-Pyrrolo[1,2-a]indoles by Hydriodic Acid-Catalyzed Cyclization of 1-[2-(1-Aryl(or methyl)ethenyl)phenyl]-1H-pyrroles
摘要:
AbstractA novel method is reported for the synthesis of 9,9‐disubstituted 9H‐pyrrolo[1,2‐a]indoles. Cyclization of 1‐[2‐(1‐aryl(or methyl)ethenyl)phenyl]‐1H‐pyrroles, which can be easily prepared from 2‐(1‐aryl(or methyl)ethenyl)anilines, proceeds smoothly, in general, at 0° in the presence of a catalytic (or an equimolar) amount of HI in MeCN to provide the desired products.
Palladium-Catalyzed Cyclization of Alkenes with Organohalides
作者:Xue-Qiang Chu、Dan Liu、Zhen-Hua Xing、Xiao-Ping Xu、Shun-Jun Ji
DOI:10.1021/acs.orglett.6b00035
日期:2016.2.19
A palladium-catalyzed tandem C–Br/C–H functionalization and cyclization of alkenes with organohalides is reported. This reaction provides an operationally simple method for the synthesis of various fluorene, pyrroloindole, and benzoxazine derivatives, which are useful pharmaceutical framework and photoelectronic devices. Two new C–C/O bonds, a quaternary carbon center and a new ring, are simultaneously