Competitive Catalytic Hydrogenation in Unsaturated Hydrocarbon Systems With Sterically Hindered Double Bonds

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Title:Competitive Catalytic Hydrogenation in Unsaturated Hydrocarbon Systems With Sterically Hindered Double Bonds
Creators:
Kačer, Petr
Laate, Leiv
Červený, Libor
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 63, 11, pp. 1915-1926
Uncontrolled Keywords:Unsaturated hydrocarbons, Competitive hydrogenation, Rhodium, Heterogeneous catalysis, Adsorptivity, Platinum, Palladium

Abstract

A competitive hydrogenation of unsaturated hydrocarbons (a-methylstyrene, cyclohexene, 1-methylcyclohex-1-ene, 1-<i>tert</i>-butylcyclohex-1-ene and 3-<i>tert</i>-butylcyclohex-1-ene) in binary and ternary systems with palladium-, platinum- and rhodium-supported catalysts in a semibatch isothermal reactor at 20 °C under atmospheric pressure was studied. It was found that considerable variance in selectivity values of competitive hydrogenation in a series of substrates with increasing substituent bulkiness is caused by differences in adsorption and in reactivity of adsorbed molecules. In the case of ternary systems, a change in selectivity of competitive hydrogenation of two substrates was observed, due to the presence of a third substance, caused by a competitive adsorption of all three substrates and their interaction on a catalytic surface.

Title:Competitive Catalytic Hydrogenation in Unsaturated Hydrocarbon Systems With Sterically Hindered Double Bonds
Creators:
Kačer, Petr
Laate, Leiv
Červený, Libor
Uncontrolled Keywords:Unsaturated hydrocarbons, Competitive hydrogenation, Rhodium, Heterogeneous catalysis, Adsorptivity, Platinum, Palladium
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:63
Number:11
Page Range:pp. 1915-1926
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19981915UNSPECIFIED
ID Code:1430
Item Type:Article
Deposited On:06 Feb 2009 17:09
Last Modified:06 Feb 2009 16:09

Citation

Kačer, Petr; Laate, Leiv; Červený, Libor (1998) Competitive Catalytic Hydrogenation in Unsaturated Hydrocarbon Systems With Sterically Hindered Double Bonds. Collection of Czechoslovak Chemical Communications, 63 (11). pp. 1915-1926. ISSN 0010-0765

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