MgFe2O4/cellulose/SO3H nanocomposite: a new biopolymer-based nanocatalyst for one-pot multicomponent syntheses of polysubstituted tetrahydropyridines and dihydropyrimidinones

被引:37
|
作者
Maleki, Ali [1 ]
Jafari, Abbas Ali [2 ]
Yousefi, Somayeh [1 ,2 ]
机构
[1] Iran Univ Sci & Technol, Dept Chem, Catalysts & Organ Synth Res Lab, Tehran 1684613114, Iran
[2] Yazd Univ, Dept Chem, Fac Sci, Yazd 89195741, Iran
关键词
Nanocatalyst; Cellulose; Solid acid; MgFe2O4 magnetic nanoparticles; Tetrahydropyridine; Dihydropyrimidinone; CELLULOSE SULFURIC-ACID; 3-COMPONENT SYNTHESIS; EFFICIENT PROTOCOL; DERIVATIVES; SOLVENT; CATALYST; NANOPARTICLES; MGFE2O4;
D O I
10.1007/s13738-017-1120-2
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new biopolymer cellulose-based magnetic heterogeneous catalyst, MgFe2O4/cellulose/SO3H nanocomposite, was prepared. Fourier-transform infrared spectra, X-ray diffraction, energy-dispersive X-ray, field-emission scanning electron microscopy, thermal analysis (TG, DTG and DSC), dynamic light scattering and vibrating sample magnetometer measurements have been used to characterize the catalyst. Then, it was applied efficiently as an inexpensive and green catalyst in two multicomponent syntheses of polysubstituted tetrahydropyridines and dihydropyrimidinones under solvent-free conditions. The nanocatalyst can be recovered and reused several times without significant loss of catalytic activity.
引用
收藏
页码:1801 / 1813
页数:13
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