Investigation of the basis of catalytic activity of solid state phosphate complexes in the Knoevenagel condensation

被引:39
|
作者
Bennazha, J
Zahouilly, M
Boukhari, A
Holt, EM [1 ]
机构
[1] Oklahoma State Univ, Dept Chem, Stillwater, OK 74078 USA
[2] Univ Hassan 2, Fac Sci & Tech, LMCE, Mohammadia 20650, Morocco
[3] Univ Hassan 2, Fac Sci & Tech, Dept Chim, UFR Chim Appl, Mohammadia 20650, Morocco
[4] Univ Mohammed 5, LSCA, Lab Associe Francophone, Dept Chim,Fac Sci, Rabat, Morocco
关键词
Knoevenagel condensation; phosphate catalysts; ethyl (E)-alpha-cyanocinnamate; heterogeneous catalysis;
D O I
10.1016/S1381-1169(03)00208-5
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 Knoevenagel condensation of benzaldehyde and ethyl cyanoacetate in ethanol at ambient temperature was catalyzed with range of mono-, meta- and diphosphate complexes. Comparison of the results shows that the catalytic activity of those phosphates is related to the electropositivity of the cation present in the structure and to the availability of the phosphate moiety to serve as a base. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:247 / 252
页数:6
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