Kinetic investigation of the cleavage of n-butyryl- or isobutyrylcobalt tetracarbonyl with hydridocobalt tetracarbonyl or dihydrogen

István Kovács, F. Ungváry, László Markó

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

The acylcobalt tetracarbonyls n-C3H7C(O)Co(CO)4 (1) and i-C3H7C(O)Co(CO)4 (2) react with H2 or HCo(CO)4 to yield n-butyraldehyde and isobutyraldehyde, respectively. The reactions, which are part of the catalytic cycle in the industrially important hydroformylation of propene, go over the corresponding acylcobalt tricarbonyls as intermediates formed by CO loss. Radical pathways of aldehyde formation may be excluded. Although the rate constants of the reactions with HCo(CO)4 are at 25°C 24-34 times larger than those with H2, under the conditions of catalytic hydroformylation (>100°C and >100 bar H2 + CO) the reaction with H2 is mainly responsible for aldehyde formation because of its stronger temperature dependence and the large concentration of H2.

Original languageEnglish
Pages (from-to)209-215
Number of pages7
JournalOrganometallics
Volume5
Issue number2
Publication statusPublished - 1986

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Carbon Monoxide
cleavage
aldehydes
Kinetics
kinetics
Hydroformylation
Aldehydes
temperature dependence
cycles
Rate constants

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry

Cite this

Kinetic investigation of the cleavage of n-butyryl- or isobutyrylcobalt tetracarbonyl with hydridocobalt tetracarbonyl or dihydrogen. / Kovács, István; Ungváry, F.; Markó, László.

In: Organometallics, Vol. 5, No. 2, 1986, p. 209-215.

Research output: Contribution to journalArticle

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