Chemistry of Heterocyclic Compounds p. 553 - 557 (1981)
Update date:2022-08-02
Topics:
Volkov, M. N.
Kazakova, O. A.
The oxidation of 3-methyl-2-ethylthiophene with molecular oxygen in glacial acetic acid in the presence of cobalt-bromide catalyst was investigated.It was established that there is a dependence of the rate of oxidation of this compound on its concentration, on the catalyst (cobalt acetate) concentration, and on the initiator (NaBr) concentration.The principal oxidation products are 3-methyl-2-acetothienone (III) and 1-(3-methyl-2-thienyl)ethyl acetate, which were isolated and characterized.The reactivity of 3-methyl-2-ethylthiophene in the oxidation reaction is higher than that of 4-methyl-2-ethylthiophene.
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