A new T3P®-assisted, convenient and efficient procedure for the synthesis of dihydroquinazolinones is described. The main advantages of this protocol include its practical simplicity, short reaction times and particularly the ease with which products are isolated.
Highly efficient synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by heteropoly acids in water
作者:YingXiao Zong、Yan Zhao、WenCai Luo、Xing Hai Yu、Jun Ke Wang、Yi Pan
DOI:10.1016/j.cclet.2010.03.022
日期:2010.7
Abstract Heteropoly acids efficiently catalyzed the cyclocondensation reaction of anthranilamide with aldehydes in water at ambient temperature and afforded the corresponding 2,3-dihydro-4(1 H )-quinazolinones compounds in good to excellent yields. This method provides mild reaction conditions and clean reaction profiles, using a small quantity of catalyst and a simple workup procedure.
A Quinazolinone based fluorescent chemosensor for selective detection of Fe(III) in aqueous media: Applications to pharmaceutical and environmental analysis
作者:Pravin R. Dongare、Anil H. Gore、Uttam R. Kondekar、Govind B. Kolekar、Balu D. Ajalkar