Unprecedented Hydrothermal Reaction of <i>O</i>-Phenylaniline and Related Derivatives with Cyclic Ketones. A Novel Approach to the Construction of Phenanthridine and Quinoline Ring Systems
作者:Barun K. Mehta、Kazumichi Yanagisawa、Motoo Shiro、Hiyoshizo Kotsuki
DOI:10.1021/ol0300120
日期:2003.5.1
[reaction: see text] A new method for synthesizing phenanthridine and its related compounds was developed using the condensation of o-phenylaniline and its homologues with cyclic ketones under hydrothermal conditions.
A robust synthesis of phenanthridines has been described via Pd(II)-catalyzed domino C(sp2)–H activation/N-arylation using oxime esters with aryl acyl peroxides in a highly regioselective manner. This protocol is compatible with acetophenone as well as benzophenone-derived oxime esters and allows modular construction of functionalized phenanthridines with wide tolerance of electronic functionality
Pd-catalyzed assembly of phenanthridines from aryl ketone O-acetyloximes and arynes through C–H bond activation
作者:Chen-Yu Tang、Xin-Yan Wu、Feng Sha、Fei Zhang、Hao Li
DOI:10.1016/j.tetlet.2013.12.075
日期:2014.1
Pd-catalyzed annulation of aryne and aryl ketone O-acetyloxime via C-H bond activation was realized. Through the C-H bond activation/insertion/cyclization/elimination reaction sequence, phenanthridines are successfully constructed, providing an attractive strategy to approach substituted heterocycle without preactivation of starting materials. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.