An efficient route to vinyl substituted oxadiazoles and triazoles using phenylselanyl derivatives as precursor
作者:Yu-Guang Wang、Xian Huang、Yu-Zhou Wu
DOI:10.1016/j.tet.2007.05.080
日期:2007.8
Vinyl substituted oxadiazoles and triazoles were obtained from selenoxide syn-elimination of phenylselanylethyl substituted oxadiazoles and triazoles, which were prepared through hydrazinolysis, acylation, and cyclocondensation reactions of phenylselanyl-propionate. Using phenylselanyl group as the precursor of terminal double bond is critical to the success of the reactions. (C) 2007 Elsevier Ltd. All rights reserved.
Novel Approach for the Synthesis of<i>N</i>-Substituted-4-(2-methyl-4-oxo-4<i>H</i>-quinazolin-3-yl)-butyramides
作者:Mohammad Amir、Israr Ali
DOI:10.1080/00397911.2010.497594
日期:2011.7.15
[image omitted] A simple and convenient method for the synthesis of N-substituted-4-(2-methyl-4-oxo-4H-quinazolin-3-yl)-butyramides has been reported. Several aromatic and aliphatic amide derivatives of 4-(2-methyl-4-oxo-4H-quinazolin-3-yl)-butyric acid were prepared in 60-81% yields by refluxing it with different phosphazo compounds in toluene for approximately 1h.