𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Properties and reactions of substituted 1,2-thiazetidine 1,1-dioxides: Aldol additions of ketones and aldehydes

✍ Scribed by Martin Müller; Hans-Hartwig Otto

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
567 KB
Volume
324
Category
Article
ISSN
0365-6233

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Properties and Reactions of Substituted
Properties and Reactions of Substituted 1,2-Thiazetidine 1,1-Dioxides: Chiral Mono- and Bicyclic 1,2-Thiazetidine 1,1-Dioxides from α-Amino Acids
✍ Alexandra Meinzer; Andrea Breckel; Bassam Abu Thaher; Nico Manicone; Hans-Hartwi 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 German ⚖ 238 KB

## Abstract New chiral mono‐ and bicyclic __β__‐sultams, valuable building blocks for drug synthesis, have been prepared from L‐Ala, L‐Val, L‐Leu, L‐Ile, L‐Phe, L‐Cys, L‐Ser, L‐Thr, and D‐penicillamine by transformation of the COOH group into a methylsulfonyl chloride function, followed by cyclizat

Properties and Reactions of Substituted
Properties and Reactions of Substituted 1,2-Thiazetidine 1,1-Dioxides: 4-Alkylidene-β-sultams
✍ Müller, Martin ;Otto, Hans-Hartwig 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 615 KB

## Abstract 4‐α‐Hydroxyalkylated β‐sultams 1/5 are transformed into 4‐alkylidene‐β‐sultams 4/7 by elimination and desilylation reactions. Another route to an exocyclic double bond in the β‐sultam system has been found to be the Peterson olefination starting from 4 silylated β‐sultams 8, 10, and 11.

Properties and Reactions of Substituted
Properties and Reactions of Substituted 1,2-Thiazetidine 1,1-Dioxides: 3-Acetoxy-1,2-thiazetidine 1,1-Dioxide, Synthesis and Reactions with C-Nucleophiles
✍ 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