Solution characterization of carboxybenzoquinone and the isolation of derived quinhydrones

TJ Holmes Jr, V John, J Vennerstrom…

Index: Holmes, T. J.; John, V.; Vennerstrom, J.; Choi, K. E. Journal of Organic Chemistry, 1984 , vol. 49, p. 4736 - 4738

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Citation Number: 15

Abstract

J. Org. Chem., Vol. 49, No. 24, 1984 4737 g (30 mmol) of gentisic acid with 37.9 g (60 mmol) of ceric (1V) ammonium sulfate was treated with HCl gas which was bubbled slowly beneath the liquid surface with stirring at room temperature for a period of 50 min. The flask was then thoroughly flushed with nitrogen, sealed, and refrigerated overnight. The resulting crude grayish solid was then filtered off, dried under vacuum, and recrystallized from EtOAc by ...