Synthesis of jasminaldehyde using magnesium organo silicate as a solid base catalyst

被引：46

作者：

Sharma, Sumeet K. ^{[1
]}

Patel, Hasmukh A. ^{[1
]}

Jasra, Raksh V. ^{[1
]}

机构：

[1] Cent Salt & Marine Chem Res Inst, Discipline Inorgan Mat & Catalysis, Bhavnagar 364002, Gujarat, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2008年 / 280卷 / 1-2期

关键词：

talc; magnesium organo silicates; jasminaldehyde; solid base catalyst; heptanal;

D O I：

10.1016/j.molcata.2007.10.013

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：

Synthetic talc (magnesium organo silicates; MOS) was synthesized by sol-gel method under non-hydrothermal conditions and modified by introducing amine/diamine functionalities in the interlayer space. The applicability of amine/diamine functionalized MOS was studied as catalysts for the synthesis of jasminaldehyde or alpha-pentylcinnamaldehyde by condensation of 1-heptanal with benzaldehyde. The effect of amine/diamine functionality, amount of catalyst, benzaldehyde to 1-heptanal molar ratio and temperature on the selectivity of jasminaldehyde was studied in detail. The highest conversion of 1-heptanal (99%) with 82% selectivity of jasminaldehyde was achieved using MOS3 as a catalyst. The rate constant for condensation of 1-heptanal with benzaldehyde was calculated under optimized reaction conditions. This is the first report on application of MOS as a solid base catalyst for the condensation of 1-heptanal with benzaldehyde. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：61 / 67

页数：7

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