Tetrahedron letters

The zoochrome of the sponge Verongia aerophoba (“Uranidine”)

…, S De Rosa, S De Stefano, A Spinella, G Sodano

Index: Cimino, Guido; Rosa, Salvatore De; Stefano, Salvatore De; Spinella, Aldo; Sodano, Guido Tetrahedron Letters, 1984 , vol. 25, # 27 p. 2925 - 2928

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Citation Number: 39

Abstract

Abstract The yellow zoochrome of the sponge Verongia aerophoba, which blackens when exposed to the air, has been isolated and its structure established as 3, 5, 8-trihydroxy-4- quinolone. The pigment is easily oxidized to an unstable blue quinone which quickly gives rise to an unsoluble black material.