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

โœ Scribed by Kazuhiro Kobayashi; Hironobu Umakoshi; Akihiro Matsunaga; Miyuki Tanmatsu; Osamu Morikawa; Hisatoshi Konishi


Publisher
John Wiley and Sons
Year
2005
Weight
19 KB
Volume
36
Category
Article
ISSN
0931-7597

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Synthesis of 12-aryl-12H-benzo[i][1,3]-d
โœ Liqiang Wu; Shujun Chao; Fulin Yan ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 88 KB

## Abstract Some novel 12โ€arylโ€12__H__โ€benzo[__i__][1,3]โ€dioxolo[4,5โ€__b__]xantheneโ€6,11โ€diones can be rapidly and efficiently synthesized in excellent yields by condensing a variety of aldehydes with 3,4โ€methylenedioxyphenol and 2โ€hydroxyโ€1,4โ€naphthoquinone in the presence of a catalytic amount of