Properties and Reactions of Substituted
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Schwenkkraus, Peter ;Merkle, Stefan ;Otto, Hans-Hartwig
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Article
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1997
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John Wiley and Sons
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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