Reaction of HCo(CO)4 and CO with Styrene. Mechanism of (α-Phenylpropionyl)- and (β-Phenylpropionyl)cobalt Tetracarbonyl Formation

Ferenc Ungváry, László Markó

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

Cobalt tetracarbonyl hydride and styrene react in the presence of carbon monoxide to form ethylbenzene and (α-phenylpropionyl)cobalt tetracarbonyl; both reactions are first order in HCo(CO)4 and PhCH=CH2 and independent of CO and Co2(CO)8 concentration. The kinetic data suggest a common radical pair intermediate for both reactions. (α-Phenylpropionyl)cobalt tetracarbonyl is not the final product of the reaction: it slowly decomposes into ethylbenzene, CO, and Co2(CO)8 and partly isomerizes into (β-phenylpropionyl)cobalt tetracarbonyl. Accordingly, among these acyl complexes the branched-chain isomer is the kineticly controlled product and the straight-chain isomer the thermodynamicly controlled product.

Original languageEnglish
Pages (from-to)1120-1125
Number of pages6
JournalOrganometallics
Volume1
Issue number9
DOIs
Publication statusPublished - Jan 1 1982

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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