One-Pot Synthesis of 12-Hydroxy-12H-benzo [b] thioxanthene-6, 11-diones from 1, 4-Naphthoquinone and o-Acylbenzenethiols

K Kobayashi, H Umakoshi, A Matsunaga…

Index: Kobayashi, Kazuhiro; Umakoshi, Hironobu; Matsunaga, Akihiro; Tanmatsu, Miyuki; Morikawa, Osamu; Konishi, Hisatoshi Bulletin of the Chemical Society of Japan, 2004 , vol. 77, # 11 p. 2095 - 2096

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Citation Number: 7

Abstract

The title benzo[b]thioxanthenequinone derivatives could be prepared in one-pot via a sequential conjugate addi- tion and an aldol-type reaction between 1,4-naphthoquinone and o-acylbenzenethiols, followed by oxidation with 1,4- naphthoquinone or air. ... In recent years, we have been developing convenient meth- ods to prepare biologically interesting heterocycle-fused qui- none derivatives.1 Compounds having the 12H-benzo[b]thiox- ...