ChemInform Abstract: Synthesis and Characterization of Dimers, Trimers, and Tetramers of 3, 6-Dimethylthieno(3,2-b)thiophene and 3,6-Dimethylselenolo(3,2-b) selenophene.
โ Scribed by J. NAKAYAMA; H. DONG; K. SAWADA; A. ISHII; S. KUMAKURA
- Book ID
- 112030831
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 27 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0931-7597
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Synthesis of Polyfunctionalized Thiophenes and Enediynes via Ring-Opening Reactions of 3-Lithiated Thieno[2,3-b](and [3,2b])thiophenes , 3,4-Dilithiated Thieno[2,3-b]thiophenes and3,6-Dilithiated Thieno[3,2-b]thiophenes. -Solutions of title lithiated thienothiophenes are obtained from the correspond
A series of the title compounds were prepared for evaluation as inhibitors of carbonic anhydrase II. Oxidation of 5-substituted thieno[2,3-b]thiophene-2-sulfonamides provided the first examples of thiophene[2,3-b]thiophene-2-sulfonamide 6,6-dioxides. These cyclic vinyl sulfones readily underwent add