One-pot reactions with sol-gel entrapped catalysts, acids and bases

被引：24

作者：

Gelman, F

Blum, J ^{[1
]}

Schumann, H

Avnir, D

机构：

[1] Hebrew Univ Jerusalem, Inst Chem, IL-91904 Jerusalem, Israel

[2] Tech Univ Berlin, Inst Chem, D-10623 Berlin, Germany

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2003年 / 26卷 / 1-3期

关键词：

doped sol-gel; ormosils; catalysis; hydrogenation; one-pot reactions; sol-gel acids; sol-gel bases;

D O I：

10.1023/A:1020777016077

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Silica sol-gel entrapped acids, bases and organometallic catalysts are used successfully in one-pot reactions without interfering with each other. Both physically and covalently entrapped acids and bases were employed in these processes, including polystyrene sulfonic acid, 1-propane sulfonic acid, molybdosilicic acid (SiO2-MoO3), poly[(vinylbenzyltrimethyl)ammonium] hydroxide and 1,5,7-triazabicyclo[4.4.0]decene. The entrapped metal-based catalysts are Rh2Co2(CO)(12) and RuCl2(PPh3)(3). The one-pot reactions carried out with these heterogenized reagents and catalysts include formation of alkenes under acidic and basic conditions, C-C bond formation by condensation reactions with an alpha-carbon to a carbonyl, hydroformylation and hydrogenation.

引用

页码：43 / 46

页数：4

共 22 条

[21] Sol-gel entrapped lipophilic and hydrophilic ruthenium-, rhodium-, and iridium-phosphine complexes as recyclable isomerization catalysts [J].