Mechanism of oxidation of xylenes with Pd(II) complexes

Journal Article · Tue Apr 01 04:00:00 EST 1986 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

OSTI ID:6968346

Kozhevnikov, I V; Kim, V I

This paper studies the oxidation of o- and p-xylene with Pd(II), in order to explain whether it can proceed through a one-electron transfer mechanism. For comparison, the oxidation of arenes with K/sub 4/H(Co /SUP III/ W/sub 12/O/sub 40/), an inner electron shell one-electron oxidant was studied, which oxidizes methylbenzenes according to certain mechanisms previously described. The oxidation of xylenes with Pd(II) complexes in acidic medium is possible according to two pathways: electrophilic substitution in the arene ring with the formation of an organometallic intermediate, and one-electron transfer from the arene to the palladium atom with the intermediacy of the arene cation-radical. The relative contribution of each pathway depends on the nature of the arene and on the acidity of the medium.

• Research Organization: Institute of Catalysis, Siberian Branch, Novosibirsk
• OSTI ID: 6968346
• Journal Information: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 34:10,PT.1; ISSN BACCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKYL RADICALS
ALKYLATED AROMATICS
AROMATICS
CATALYTIC EFFECTS
CHEMICAL BONDS
CHEMICAL PROPERTIES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COMPLEXES
ELECTRON TRANSFER
FEASIBILITY STUDIES
HYDROCARBONS
KINETICS
METHYL RADICALS
ORGANIC COMPOUNDS
OXIDATION
PALLADIUM COMPLEXES
RADICALS
REACTION KINETICS
TRANSITION ELEMENT COMPLEXES
XYLENES
YIELDS