Synthesis and characterization of novel soluble multi-site phase transfer catalyst; its efficiency compared with single-site phase transfer catalyst in the alkylation of phenylacetonitrile as a model reaction

被引：29

作者：

Balakrishnan, T

Murugan, E

Siva, A ^{[1
]}

机构：

[1] Deemed Univ, Gandhigram Rural Inst, Dept Chem, Gandhigram 624302, Tamil Nadu, India

[2] Univ Madras, Sch Chem Sci, Dept Phys Chem, Madras 600025, Tamil Nadu, India

来源：

APPLIED CATALYSIS A-GENERAL | 2004年 / 273卷 / 1-2期

关键词：

phase transfer catalyst; phenylacetonitrile; pseudo-first-order; multi-site phase-transfer catalyst;

D O I：

10.1016/j.apcata.2004.06.016

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：

The kinetics of C-alkylation of phenylacetonitrile with 1-bromobutane has been studied using a novel alpha,alpha',alpha"-N-hexakis(triethylammoniummethylene chloride)-melamine as a multi-site phase transfer catalyst (MPTC) using a low concentration of aqueous sodium hydroxide as a base. The reaction was carried out at 50degreesC under pseudo-first-order conditions by keeping aqueous base and 1-bromobutane in excess. The formation of the product was monitored by GLC. The effects of various experimental parameters such as [substrate], [NaOH], [catalyst] and temperature on the rate of the reaction have been studied. The results obtained and also the thermodynamic parameters are discussed. The catalytic efficiency of the multi-site catalyst was compared with efficiencies of the commercially available single-site catalysts. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：89 / 97

页数：9

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