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
BERGMAN J.; BRYNOLF A.; ELMAN B.; VUORINEN E., TETRAHEDRON, 42,(1986) N 13, 3697-3706
作者:BERGMAN J.、 BRYNOLF A.、 ELMAN B.、 VUORINEN E.
DOI:——
日期:——
An Efficient Three-component, One-pot Synthesis of Quinazolines under Solvent-free and Catalyst-free Condition
作者:Subrahmanya Ishwar Bhat、U. K. Das、Darshak R. Trivedi
DOI:10.1002/jhet.2220
日期:2015.7
protocol for the synthesis of quinazolines in the absence of solvent and catalyst has been developed. 2,4‐Disubstituted quinazolines have been synthesized from three‐component one‐pot reactions of 2‐aminoaryl ketones, orthoesters, and ammonium acetate. The present method has advantages of operational simplicity, substrate generality, clean reaction, high yields (76–94%), and moderate reaction time. The plausible