Synthesis of 3??Aryloxy??2??iodoemodines by Oxidation of Emodin with (Diacetoxyiodo) arenes

KS Daub, B Habermann, T Hahn…

Index: Daub, Katja S.; Habermann, Bernd; Hahn, Thilo; Teich, Lars; Eger, Kurt European Journal of Organic Chemistry, 2004 , # 4 p. 894 - 898

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Citation Number: 7

Abstract

Abstract Hypervalent iodine oxidation of emodin (1) with various (diacetoxyiodo) arenes 2a− f in potassium hydroxide/methanol leading to 3-aryloxy-1, 8-dihydroxy-2-iodo- anthraquinones 4a− f is reported. Mechanistic studies showed reaction via iodonium ylides.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)