Oxidation of 1,2,3,4-tetrahydronaphthalene by dioxygen. Effects of 3 transition metal 2,4-pentanedionates on the thermal and photoinitiated reactions

1 January 1986

journal article
Published by Institute of Organic Chemistry & Biochemistry in Collection of Czechoslovak Chemical Communications

Vol. 51 (11) , 2537-2545
https://doi.org/10.1135/cccc19862537

Abstract

The effects of Mn^III, Co^II, Co^III, Fe^III, and Cr^III 2,4-pentanedionates on the thermal and photoinitiated reactions of 1,2,3,4-tetrahydronaphthalene by dioxygen have been investigated. Co^II and Mn^III, which are highly efficient catalysts for the thermal reaction, do not increase the rate of the photoinitiated reaction. Fe^III and Co^III, which are poorly active in catalyzing the thermal reaction, have profound photocatalytic effects. The catalytic effect of Cr^III is critically dependent on the presence of 1,2,3,4-tetrahydro-1-naphthyl hydroperoxide. An increase in the reaction temperature increases the rate of the photoinitiated reaction and enhances the catalytic and photocatalytic effects.

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