文献类型：期刊文献

英文题名：Powdered diethylaminoethyl cellulose as biomass-derived support for phosphotungstic acid: new solid acidic catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones

作者：Li, Shaokang[1];Zhang, Qianqian[1];Peng, Yanqing[1]

机构：[1]E China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab Chem Biol, Shanghai 200237, Peoples R China

年份：2015

卷号：146

期号：11

起止页码：1859

外文期刊名：MONATSHEFTE FUR CHEMIE

收录：;EI(收录号：20242616503862);WOS:【SCI-EXPANDED(收录号:WOS:000363041200012)，CCR-EXPANDED(收录号:WOS:000363041200012)】；

基金：Financial support from National Key Technology R&D Program (2011BAE06B02) is gratefully acknowledged.

语种：英文

外文关键词：Biopolymer; Diethylaminoethyl cellulose; Phosphotungstic acid; Catalysis; Cyclization

摘要：Finely powdered diethylaminoethyl cellulose is prepared through a bottom-up synthetic method using NaOH/urea aqueous solution as solvent. Phosphotungstic acid anchored on the powdered diethylaminoethyl cellulose can be used as a biopolymer-supported solid acidic catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones from isatoic anhydride, amines, and aldehydes. The catalyst could be easily recovered by simple filtration and reused several times with minor decreases in the reaction yields. [GRAPHICS] .