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Photoaddition reactions of benzene and related compounds with thiochromone 1,1-dioxide

✍ Scribed by Ian W.J. Still; Toong Sang Leong


Publisher
Elsevier Science
Year
1979
Tongue
French
Weight
253 KB
Volume
20
Category
Article
ISSN
0040-4039

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Properties and Reactions of Substituted
✍ Schwenkkraus, Peter ;Merkle, Stefan ;Otto, Hans-Hartwig 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 670 KB

## Abstract __N__‐Silylated 3‐acetoxy‐1,2‐thiazetidine 1,1‐dioxide (5) is prepared from L‐cystine. Reactions of 5 with silyl enol ethers yield C‐3‐substituted β‐sultams 6, 12 and 15. Desilylation of 6 affords 7, which undergoes photochemical cyclization to give the bicyclic β‐sultam 10. In the cour