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Mechanism of selective p-quinol formation in the cobalt schiff base complex-catalyzed oxygenation of 4-alkyl-2,6-di-t-butylphenols

✍ Scribed by A. Nishinaga; H. Tomita; T. Matsuura

Publisher: Elsevier Science
Year: 1980
Tongue: French
Weight: 193 KB
Volume: 21
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)71387-6

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✦ Synopsis

The selective formation of e-quinols in the Co(Salpr)-catalyzed oxygenation of 4-alkyl-2,6-di-t-butylphenols in MeOH has been found to involve the rate determining reduction of peroxy-R-quinolato Co(II1) complex formed in the initial fast step. An ionic mechanism of the reduction of the O-O bond in the peroxy complex by MeOH has been discussed based on kinetic studies. The reactive species in the catalytic cycle

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