Reactions of 1,3-dihydrobenzo[c]thiophene 2,2-dioxides with electrophilic agents
✍ Scribed by G. A. Tashbaev
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 244 KB
- Volume
- 54
- Category
- Article
- ISSN
- 1573-9171
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Rhodium acetate catalyzed decompostion of various a-diazo-B-phenylmethane sulfonyl esters resulted in the formation of the title compounds in 40-50% yields. 1,3-Dihydrobenzo[c]thiophene 2,2-dioxidesJare valuable precursors to o-quinodimethanes 2\_. The synthetic utility of these sulfones is well do
## Abstract Die Benzo[__b__]thiophen‐1, 1‐dioxide **2a**‐**d** und **3a** ‐ **c** setzen sich in der Hitze mit Methanol zu 2, 3‐Dihydrobenzol[__b__]thiophen‐3‐on‐1,1‐dioxid (**1**) um. Dieses reagiert mit Aminen, Hydrazinen oder Triphenylphosphoranen zu den Kondensationsprodukten **4**, **7** und *
## Abstract The optically pure steroid (+)‐**15** has been synthesized from the easily accessible (+)‐carboxylic acid **11** by a sequence of 7 steps in 50% overall yield. The key steps are the regioselective deprotonation/alkylation **7+13 → 14** and the thermal SO~2~‐extrusion/cycloaddition **14