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Reaction with benzo[b]thiophene-2,3-dione A Novel Synthesis of Thiocoumarin Derivatives

✍ Scribed by Mohamed Mohamed Mohamed Sallam; Mahmoud Ali Ibraheim; Prof. Dr. Mohamed Hilmy Elnagdi; Dr. Kamal Usef Sadek


Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
241 KB
Volume
327
Category
Article
ISSN
1615-4150

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## Abstract Benzo[b]thiophene‐2,3‐diones (**1**) react with __Grignard__ reagents to yield 2,3‐dihydroxy‐2,3‐diaryl(aralkyl)benzo[b]‐thiophenes (**2**). The latter compounds yield 3,3‐diaryl(aralkyl)‐benzo[b]thiophene‐2‐ones (**3**) by pinacolone rearrangement. Treatment of **3** by hot ethanolic s

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