Synthetic Approaches and Reactions of 2-(Arylidene)benzo[b]thiophen-3(2H)one-1,1-dioxides
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S Barick, M Kumar, R Kumar
Mini-Reviews in Organic …, 2025
benthamdirect.com
2-(Arylidene) benzo [b] thiophen-3 (2 H) one 1, 1-dioxides are oxidized form of thioaurones. Various methods have been reported for their synthesis, eg, a) condensation of benzo [b] thiophen-3 (2 H) one 1, 1-dioxides with aryl aldehydes under acidic or basic conditions, b) oxidation of thioaurones with hydrogen peroxide or sodium perborate tetrahydrate, c) from the catalytic reaction of iodonium ylides with (bis (trifluoroacetoxy) iodo) benzene in presence copper (II) acetoacetonate, d) by ring contraction of 1-thioflavones in the presence …
