The rearrangement of 2-acetyl-and 2-benzoylcoumarone oxime p-toluenesulfonates

TA Geissman, A Armen

Index: Geissman; Armen Journal of the American Chemical Society, 1955 , vol. 77, p. 1623,1625

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Citation Number: 42

Abstract

The reported rearrangement of the tosylate of 2-acetylcoumarone oxime to 2- methylchromonol-3 has been confirmed. A structure for the “acetal” formed in the reaction has been proposed. The rearrangement of 2-benzoylcoumarone oxime tosylate yields flavonol and 2-benzoylcoumaranone-3. New syntheses have been described for 2- acylcoumaronones; and 3-acetylcoumaranone-2 has been described for the first time, ...