ZnO nanoparticles embedded in SBA-15 as an efficient heterogeneous catalyst for the synthesis of dihydropyrimidinones via Biginelli condensation reaction

被引：52

作者：

Bhuyan, Diganta ^{[1
]}

Saikia, Mrinal ^{[1
,2
]}

Saikia, Lakshi ^{[1
,2
]}

机构：

[1] CSIR, North East Inst Sci & Technol, Mat Sci & Technol Div, Adv Mat Grp, Jorhat 785006, Assam, India

[2] Acad Sci & Innovat Res, Madras, Tamil Nadu, India

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2018年 / 256卷

关键词：

ZnO nanoparticles; Heterogeneous catalyst; Dihydropyrimidinones; Biginelli condensation; ONE-POT SYNTHESIS; STRUCTURE BASE CATALYST; SOLVENT-FREE CONDITIONS; MESOPOROUS SILICA; CO OXIDATION; ANTIINFLAMMATORY ACTIVITY; ACID-DERIVATIVES; NANO-PARTICLES; OXIDE; ANTIBACTERIAL;

D O I：

10.1016/j.micromeso.2017.06.052

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new ZnO@SBA-15 nanocomposite material has been fabricated by an "in situ" generation of ZnO NPs on SBA-15 support. The as-synthesized nanocomposite material was fully characterized with various spectroscopic techniques and their catalytic activity was tested for the synthesis of a diverse range of dihydropyrimidinones (DHPMs) and thione derivatives via Biginelli condensation reaction. The catalytic efficiency of ZnO@SBA-15 nanocomposite was far superior with a remarkably lower catalyst loading and shorter reaction time compared to unsupported ZnO nanoparticles. The catalyst was recycled for minimum of four times without significant loss in its catalytic activity. Moreover, a tentative catalytic cycle for the reaction is also proposed. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：39 / 48

页数：10

共 64 条

[31]

Majid M.H., 2013, Mol. Diversity, V17, P389

[32] Selective preparation of complex polycyclic molecules from acyclic precursors via radical mediated- or transition metal-catalyzed cascade reactions [J].