Copper-catalyzed three-component one-pot synthesis of quinazolines
作者:Jia Ju、Ruimao Hua、Ji Su
DOI:10.1016/j.tet.2012.09.035
日期:2012.11
Two efficient approaches to multi-substituted quinazolines by the three-componentone-pot reaction of o-bromo aromatic ketones/aldehydes, ammonia water and aromatic aldehydes, or primary alcohols catalyzed by CuCl have been developed.
Catalyst-free synthesis of quinazoline derivatives using low melting sugar–urea–salt mixture as a solvent
作者:Zhan-Hui Zhang、Xiao-Nan Zhang、Li-Ping Mo、Yong-Xiao Li、Fei-Ping Ma
DOI:10.1039/c2gc35258c
日期:——
of maltose–dimethylurea (DMU)–NH4Cl was found to be an inexpensive, non-toxic, easily biodegradable and effective reaction medium in the catalyst-freesynthesis of quinazolinederivatives. This simple and efficient method furnished the corresponding quinazolines in high yields via one-pot three-component reaction of 2-aminoaryl ketones, aldehyde, and ammonium acetate under aerobic oxidation conditions
n-Bu<sub>4</sub>NI-catalyzed selective dual amination of sp<sup>3</sup> C–H bonds: oxidative domino synthesis of imidazo[1,5-c]quinazolines on a gram-scale
作者:Dan Zhao、Teng Wang、Qi Shen、Jian-Xin Li
DOI:10.1039/c4cc01444h
日期:——
An n-Bu4NI catalyzed domino reaction that involves selective dual amination of sp(3) C-Hbonds has been developed. The protocol affords a facile and efficient approach to the synthesis of imidazo[1,5-c]quinazolines under mild conditions.