A novel cooperative Lewis acid/Bronsted base catalyst Fe3O4@SiO2-APTMS-Fe(OH)2: An efficient catalyst for the Biginelli reaction

被引：39

作者：

Sheykhan, Mehdi ^{[1
]}

Yahyazadeh, Asieh ^{[1
]}

Ramezani, Leila ^{[1
]}

机构：

[1] Univ Guilan, Chem Dept, POB 41335-1914, Rasht, Iran

来源：

MOLECULAR CATALYSIS | 2017年 / 435卷

关键词：

Cooperative catalysis; Lewis acid; Bronsted base; Biginelli reaction; SOLVENT-FREE CONDITIONS; ONE-POT SYNTHESIS; METAL-ORGANIC FRAMEWORK; MAGNETICALLY SEPARABLE CATALYST; MICROWAVE-ASSISTED SYNTHESIS; INORGANIC HYBRID MATERIALS; CALCIUM-CHANNEL BLOCKERS; RECYCLABLE CATALYST; HIGHLY EFFICIENT; IONIC LIQUID;

D O I：

10.1016/j.mcat.2017.03.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A complex of ferrous-and hydroxide ions was generated within a core-shell magnetic nanocatalyst of 24 +/- 3 nm. The catalytic activity of material was explored in the synthesis of 3,4-dihydropyrimidine2-(1H)-one/thione (DHPM) derivatives in neat condition. The products are synthesized in high yields (85-98%) in 15-20 min. Neither Fe-nor hydroxide leaching in the reaction medium was detected by AAS and pH analysis, respectively. The catalyst has a convenient reusability after seven consecutive reaction cycles giving a cumulative turnover frequency >5600h(-1). (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：166 / 173

页数：8

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