Catalyst/ligand-free synthesis of benzimidazoles and quinazolinones from amidines via intramolecular transamination reaction
摘要:
An efficient catalyst/ligand-free synthesis of benzimidazoles and quinazolinones from amidines in quailtitative yields has been described. (C) 2010 Elsevier Ltd. All rights reserved.
Photocatalyst-free visible-light-promoted quinazolinone synthesis at room temperature utilizing aldehydes generated <i>in situ via</i> CC bond cleavage
作者:Zongbo Xie、Jin Lan、Liyuan Yan、Xuehua Chen、Qian Li、Jia Meng、Zhanggao Le
DOI:10.1039/d0ob02268c
日期:——
This is the first report on a faciletandem route for synthesizing quinazolinones at room temperature from various aminobenzamides and in situ-generated aldehydes. The latter was formed via CC bond cleavage, and the overall reaction proceeded using molecular oxygen as a clean oxidant in the absence of a photocatalyst. Visible light, which was indispensable for the entire course of the reaction, played