Influence of acid-base properties of mixed oxides derived from hydrotalcite-like precursors in the transfer hydrogenation of propiophenone

被引：53

作者：

Jyothi, TM ^{[1
]}

Raja, T

Sreekumar, K

Talawar, MB

Rao, BS

机构：

[1] Natl Chem Lab, Catalysis Div, Pune 411008, Maharashtra, India

[2] Lab Mat Catalyt & Catalyse Chim Organ, UMR 5618, Montpellier, France

[3] High Energy Mat Res Lab, Pune 411021, Maharashtra, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2000年 / 157卷 / 1-2期

关键词：

acid-base properties; mixed oxides; hydrotalcites; transfer hydrogenation; propiophenone;

D O I：

10.1016/S1381-1169(99)00439-2

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：

Reductive dehydration of propiophenone to beta-methylstyrene has been carried out over different calcined hydrotalcites viz MgAl, CoAl, NiAl, and CuAl under transfer hydrogenation conditions in the temperature range 498-548 K. The performance of calcined MgAl hydrotalcites is found to be much better than MgO and the physical mixture of MgO and Al2O3. It is found that selectivity of beta-methylstyrene is improved upon the substitution of Mg2+ by Ni2+ or Cu2+ as a result of the formation of stronger acid sites. The overall conversion of propiophenone is influenced by the number and strength of basic sites whereas the selectivity of alkene is affected by the strength of acidic sites present on the catalyst surface. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：193 / 198

页数：6

共 18 条

[1] Hydrogenation of acetonitrile on nickel-based catalysts prepared from hydrotalcite-like precursors [J].

Cabello, FM ;

Tichit, D ;

Coq, B ;

Vaccari, A ;

Dung, NT .

JOURNAL OF CATALYSIS, 1997, 167 (01) :142-152

[2] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS [J].

Cavani, F. ;

Trifiro, F. ;

Vaccari, A. .

CATALYSIS TODAY, 1991, 11 (02) :173-301

[3] BASE CATALYSIS FOR FINE CHEMICALS PRODUCTION - CLAISEN-SCHMIDT CONDENSATION ON ZEOLITES AND HYDROTALCITES FOR THE PRODUCTION OF CHALCONES AND FLAVANONES OF PHARMACEUTICAL INTEREST [J].

CLIMENT, MJ ;

CORMA, A ;

IBORRA, S ;

PRIMO, J .

JOURNAL OF CATALYSIS, 1995, 151 (01) :60-66

[4] DETERMINATION OF BASE PROPERTIES OF HYDROTALCITES - CONDENSATION OF BENZALDEHYDE WITH ETHYL ACETOACETATE [J].

CORMA, A ;

FORNES, V ;

MARTINARANDA, RM ;

REY, F .

JOURNAL OF CATALYSIS, 1992, 134 (01) :58-65

[5] Influence of the acid-base properties of solid catalysts derived from hydrotalcite-like compounds on the condensation of formaldehyde and acetaldehyde [J].

Dumitriu, E ;

Hulea, V ;

Chelaru, C ;

Catrinescu, C ;

Tichit, D ;

Durand, R .

APPLIED CATALYSIS A-GENERAL, 1999, 178 (02) :145-157

[6] Hydrotalcites as base catalysts. Kinetics of Claisen-Schmidt condensation, intramolecular condensation of acetonylacetone and synthesis of chalcone [J].

Guida, A ;

Lhouty, MH ;

Tichit, D ;

Figueras, F ;

Geneste, P .

APPLIED CATALYSIS A-GENERAL, 1997, 164 (1-2) :251-264

[7] DEHYDROGENATION OF ALCOHOLS AND HYDROGEN TRANSFER FROM ALCOHOLS TO KETONES OVER HYDROXYAPATITE CATALYSTS [J].

KIBBY, CL ;

HALL, WK .

JOURNAL OF CATALYSIS, 1973, 31 (01) :65-73

[8] REDUCTION OF ALKYL ALKYL, ARYL ALKYL AND CYCLIC-KETONES BY CATALYTIC HYDROGEN TRANSFER OVER MAGNESIUM-OXIDE [J].

KIJENSKI, J ;

GLINSKI, M ;

CZARNECKI, J .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1991, (11) :1695-1698

[9] The direct synthesis of alkenylaromatics during catalytic transfer reduction (CTR) of aralkyl ketones with isopropyl alcohol over MgO of enhanced acidity [J].

Kijenski, J ;

Glinski, M ;

Quiroz, CWA .

APPLIED CATALYSIS A-GENERAL, 1997, 150 (01) :77-84

[10] SYNTHESIS AND PROPERTIES OF ANIONIC CLAYS PILLARED BY [XM12O40]N- KEGGIN IONS [J].

KWON, T ;

PINNAVAIA, TJ .

JOURNAL OF MOLECULAR CATALYSIS, 1992, 74 (1-3) :23-33

← 1 2 →