Preparation of Substituted Phenanthridines from the Coupling of Aryldiazonium Salts with Nitriles: A Metal Free Approach
作者:Mani Ramanathan、Shiuh-Tzung Liu
DOI:10.1021/acs.joc.5b00579
日期:2015.5.15
A transition metal free approach for the synthesis of substituted phenanthridines from the coupling reaction of aryldiazonium tetrafluoroborates with nitriles has been developed. This operationally simple protocol proceeds through a substitution of aryldiazonium with nitriles followed by an intramolecular arylation to provide the corresponding phenanthridines in moderate to excellent yields.
This study reported the synthesis of 6-methylphenanthridines from 2-isocyanobiaryls using dimethylformamide (DMF) as a methyl carbon souce. The reactions were conducted in open-air atmosphere using electrochemical process at ambient temperature.
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.
CONDENSED CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:SAMSUNG DISPLAY CO., LTD.
公开号:US20160079546A1
公开(公告)日:2016-03-17
A condensed cyclic compound and an organic light-emitting device, the condensed cyclic compound being represented by Formula 1 below: