Journal of the American Chemical Society

The Enolization of 9-Phenyl-2, 3-benzofluorene-1, 4-quinone

MG Ettlinger

Index: Ettlinger Journal of the American Chemical Society, 1954 , vol. 76, p. 2769,2775

Full Text: HTML

Citation Number: 1

Abstract

Upon reduction by zinc in acetic acid or by warm alkaline dithionite, V furnished nearly colorless solutions from which 1, 4-dihydroxy-9-phenyl-2, 3-benzofluorene (IX) was isolated as a solid which rapidly turned red in air and was not purified. More stable were the 1, 4- diacetate of IX, which resembled in ultraviolet spectrum its 9-hydroxy and 9-acetoxy derivatives, 8 and the 4-methyl ether X, which was obtained by reduction of VI1 and ...