Mechanism of the hydrocarboxylation and hydrocarbomethoxylation of olefins and diolefins in the presence of pyridine

Journal Article · Thu Dec 31 23:00:00 EST 1987 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:7060679

Imyanitov, N S

The adequacy of the reaction mechanisms for the case of the use of cobalt carbonyls as catalysts is discussed. It is shown that the carbocation mechanism does not correspond to the reaction kinetics and the composition of the products. The mechanism according to which HCO/sub 0/(CO)/sub 4/ is bonded to the olefin according to a molecular pathway or with the participation of ions, but synchronously, while pyridine accelerates hydrocarboxylation and hydrocarbomethoxylation through the formation of an acylpyridinium salt, is free of these short-comings. Such a mechanism explains the specifics of the action of pyridine in comparison with other Lewis bases.

• Research Organization: Lenneftekhim Scientific-Industrial Association, Leningrad (USSR)
• OSTI ID: 7060679
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 28:4; ISSN KICAA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALKENES
AMINES
AMMONIUM COMPOUNDS
AZINES
BASES
CARBONYLS
CARBOXYLATION
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COBALT COMPOUNDS
ENERGY
HETEROCYCLIC COMPOUNDS
HETEROGENEOUS CATALYSIS
HYDROCARBONS
IONS
KINETICS
LEWIS BASES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
PYRIDINE
PYRIDINES
PYRIDINIUM COMPOUNDS
QUATERNARY COMPOUNDS
REACTION KINETICS
REDUCTION
TRANSITION ELEMENT COMPOUNDS