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Influence of an Additional Gas on the Hydroformylation and Related Reactions
Author(s) -
Bianchi Mario,
Frediani Piero,
Piacenti Franco,
Rosi Luca,
Salvini Antonella
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200205)2002:5<1155::aid-ejic1155>3.0.co;2-8
Subject(s) - hydroformylation , chemistry , carbonylation , catalysis , xenon , argon , neon , propene , photochemistry , reaction rate , organic chemistry , rhodium , carbon monoxide
The initial rate of the catalytic carbonylations reported in this paper [the hydroformylation of olefins in the presence of Co 2 (CO) 8 , the carbonylation of orthoesters catalyzed by Co 2 (CO) 8 ], and the formation of tetracarbonylhydridocobalt(I) from octacarbonyldicobalt and dihydrogen] was reduced by the addition of dinitrogen, argon, or xenon. The influence of xenon on the rate of hydroformylation was greater than that of dinitrogen or argon. Helium and neon, on the other hand, did not show any influence, as expected, in view of their chemical‐physical features. The experimental data may be explained assuming that the additional gas competes with one or more reactants for a coordinatively unsaturated site responsible for their activation, thus affecting the reaction rate. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)