Oxidation of 4??chromanones with thallium (III) nitrate

PG Ciattini, E Morera, G Ortar

Index: Ciattini, Pier Giuseppe; Morera, Enrico; Ortar, Giorgio Journal of Heterocyclic Chemistry, 1982 , vol. 19, p. 395 - 400

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Citation Number: 14

Abstract

Abstract Treatment of 4-chromanones 1a-g with thallium (III) nitrate in acidic methanol results mainly in dehydrogenation, whereas α-methoxylation and/or Taylor-McKillop rearrangement predominate in trimethyl orthoformate. The mechanistic features of these oxidations are briefly discussed.