Solid base catalysts obtained from hydrotalcite precursors, for Knoevenagel synthesis of cinamic acid and coumarin derivatives

被引:48
作者
Angelescu, E.
Pavel, O. D.
Birjega, R.
Zavoianu, R.
Costentin, G.
Che, M.
机构
[1] Univ Bucharest, Fac Chem, Dept Chem Technol & Catalysis, Bucharest 030018, Romania
[2] SC ZECASIN SA, Bucharest, Romania
[3] Univ Paris 06, UMR 7609, Lab Reactiv Surface, F-75252 Paris 05, France
关键词
calcined hydrotalcites; solid base catalysts for cinamic acid and coumarin derivatives synthesis;
D O I
10.1016/j.apcata.2006.04.011
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 goal of this paper was to study the synthesis of the cinamic acid, coumarin-3-carboxilic acid and their ethylesters by Knoevenagel condensation using the solid base catalysts obtained from calcined Mg-Al, Mg-Al + Ln (Ln = Dy, Gd) and Li-Al hydrotalcites, under solvent free conditions. Correlations between the basicity of the catalysts and the advancement degree in the pathway of the condensation reaction have also been investigated. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:13 / 18
页数:6
相关论文
共 33 条
  • [1] ALBERTAZZI S, 2004, CLAY SURFACES FUNDAM, V1, P497
  • [2] ALBERTI G, 1996, COMPREHENSIVE SUPRAM, V7, P1
  • [3] Nafion-functionalized mesoporous MCM-41 silica shows high activity and selectivity for carboxylic acid esterification and Friedel-Crafts acylation reactions
    Alvaro, M
    Corma, A
    Das, D
    Fornés, V
    García, H
    [J]. JOURNAL OF CATALYSIS, 2005, 231 (01) : 48 - 55
  • [4] A spectroscopy and catalysis study of the nature of active sites of MgO catalysts: Thermodynamic Bronsted basicity versus reactivity of basic sites
    Bailly, ML
    Chizallet, C
    Costentin, G
    Krafft, JM
    Lauron-Pernot, H
    Che, M
    [J]. JOURNAL OF CATALYSIS, 2005, 235 (02) : 413 - 422
  • [5] Synthesis and structure of the gibbsite intercalation compounds [LiAl2(OH)(6)]X {X=Cl, Br, NO3} and [LiAl2(OH)(6)]Cl center dot H2O using synchrotron X-ray and neutron powder diffraction
    Besserguenev, AV
    Fogg, AM
    Francis, RJ
    Price, SJ
    OHare, D
    Isupov, VP
    Tolochko, BP
    [J]. CHEMISTRY OF MATERIALS, 1997, 9 (01) : 241 - 247
  • [6] Montmorillonite KSF as an inorganic, water stable, and reusable catalyst for the knoevenagel synthesis of coumarin-3-carboxylic acids
    Bigi, F
    Chesini, L
    Maggi, R
    Sartori, G
    [J]. JOURNAL OF ORGANIC CHEMISTRY, 1999, 64 (03) : 1033 - 1035
  • [7] Rare-earth elements modified hydrotalcites and corresponding mesoporous mixed oxides as basic solid catalysts
    Bîrjega, R
    Pavel, OD
    Costentin, G
    Che, M
    Angelescu, E
    [J]. APPLIED CATALYSIS A-GENERAL, 2005, 288 (1-2) : 185 - 193
  • [8] CABELLLO JA, 1948, J ORG CHEM, V49, P5195
  • [9] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS
    Cavani, F.
    Trifiro, F.
    Vaccari, A.
    [J]. CATALYSIS TODAY, 1991, 11 (02) : 173 - 301
  • [10] CATALYSIS OF THE KNOEVENAGEL CONDENSATION
    CHALAIS, S
    LASZLO, P
    MATHY, A
    [J]. TETRAHEDRON LETTERS, 1985, 26 (37) : 4453 - 4454