The heterogenization of L-phenylalanine-Ru(III) complex and its application as catalyst in esterification of ethyl alcohol with acetic acid

被引：13

作者：

Adam, Farook ^{[1
]}

Hello, Kasim Mohammed ^{[2
]}

Chai, Suk-Jin ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Chem Sci, George Town 11800, Malaysia

[2] Al Muthanna Univ, Dept Chem, Collage Sci, Samawah, Iraq

来源：

CHEMICAL ENGINEERING RESEARCH & DESIGN | 2012年 / 90卷 / 05期

关键词：

Surface modification; Sol-gel technique; L-Phenylalanine; Esterification; Ruthenium(III) complex; ALPHA-AMINO-ACIDS; TRANSFER HYDROGENATION; RICE HUSK; SILICA; IMMOBILIZATION; PALLADIUM(II); ADSORPTION; LIGANDS;

D O I：

10.1016/j.cherd.2011.09.009

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A simple route is demonstrated for the efficient immobilization of silica with L-(N-alpha-acetylphenylalanine)-ruthenium(III) complex. This catalyst was labelled as RHAPhe-Ru. The Si-29 MAS NMR showed the presence of T-3, T-2, Q(3) and Q(4) silicon centers. The C-13 MAS NMR showed the presence of three chemical shifts consistent with the three carbon atoms of the propyl group. The catalytic performance of RHAPhe-Ru was tested in the esterification of ethyl alcohol. A conversion of 82% was achieved, with 100% selectivity towards ethyl acetate. The catalyst could be regenerated by washing with ethanol and drying at 110 degrees C for 24 h without significant loss in reactivity. (C) 2011 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：633 / 642

页数：10

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