期刊
IRANIAN JOURNAL OF CATALYSIS
卷 9, 期 1, 页码 71-77出版社
ISLAMIC AZAD UNIV, SHAHREZA BRANCH
关键词
Nanofibrillated cellulose; Titanium chloride; Heterogeneous catalyst; 2,3 '-Dihydroquinazolin-4-(1H)-ones
资金
- Research Council of Alzahra University
A novel and cost-effective catalyst for synthesis of 2,3'-dihydroquinazolin-4-(1H)-ones was developed utilizing a combined nanocomposite obtained from bonding TiCl3 to hydroxyl groups of nanofibrillated cellulose as a green and inexpensive support. The structure of the catalyst was investigated using the Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) techniques and transmission electron microscopy (TEM). The prepared new nanopolymer-based composite has been investigated successfully to obtain some 2,3'-dihydroquinazolin-4-(1H)-ones via the reaction of 2-aminobenzamide and various kinds of aldehydes/cyclic ketones in refluxing ethanol. Short reaction times, the low amount of catalyst, high yields of products, utilizing a wide-range of aldehydes/ketones, easy work-up procedure, in addition to the accelerating effect of the newly synthesized biodegradable nano composite, are some highlighted features of the reported protocol.
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