Tetrahedron

Singlet oxygen in the photodegradation of lignin models

C Crestini, M D'Auria

Index: Crestini, Claudia; D'Auria, Maurizio Tetrahedron, 1997 , vol. 53, # 23 p. 7877 - 7888

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Citation Number: 84

Abstract

The photochemical oxidation of lignin models in the presence of singlet oxygen was studied. The treatment of the non-phenolic β-O-4 aryl ether derivatives 6, 7, and 8 in the presence of both oxygen and Rose Bengal gave products deriving from a formal β-CO cleavage formation. By this way, the derivatives 12, 13, and 15 were obtained. The photochemical oxidation of the phenolic β-O-4 aryl ehter 9 gave the same type of product confirming that, ...