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Cyclisierungsreaktionen β,γ-ungesättigter Kohlensäurederivate. VII. Synthese eindeutig N-acylierter Thiazolidin-2-one und Oxazolidin-2-one

✍ Scribed by Dr. R. Widera; Prof. Dr. M. Mühlstädt


Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
276 KB
Volume
324
Category
Article
ISSN
1615-4150

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✦ Synopsis


Cyclization Reactions of β,γ‐Unsaturated Derivatives of Carbonic Acid. VII. Synthesis of Unequivocal N‐Acylated Thiazolidine‐2‐ones and Oxazolidine‐2‐ones

A new synthetic route to N‐acylated thiazolidine‐2‐ones and oxazolidine‐2‐ones is reported: The reaction of carboxylic acid chlorides with 2‐alkoxy‐2‐thiazolines (1, 2) or ‐2‐oxazolines (3) yields unequivocal N‐acylated thiazolidine‐2‐ones (4–6) or oxazolidine‐2‐ones (7). Bifunctional acid chlorides, e.g. oxalyl chloride or thiophosgene yield compounds 11 and 12.


📜 SIMILAR VOLUMES


Cyclisierungsreaktionen β, γ-ungesättigt
✍ Prof. Dr. M. Mühlstädt; Dr. R. Widera 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 522 KB

**Cyclization Reactions of β,γ‐Unsaturated Derivatives of Carbonic Acid. II. Reactions of β,γ‐Unsaturated Carbamic Acid Esters with Electrophilic Reagents — Synthesis of N‐Substituted Oxazolidine‐2‐ones** N,N‐Disubstituted β,γ‐unsaturated urethans have been cyclized to N‐substituted oxazolidine‐2‐o

Cyclisierungsreaktionen β, γ-ungesättigt
✍ Prof. Dr. M. Mühlstädt; Dr. R. Widera 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 460 KB

**Cyclization Reactions of β,γ‐Unsaturated Derivatives of Carbonic Acid. IV. Synthesis of N‐Substituted Thiazolidine‐2‐ones and 2‐Alkoxy‐2‐thiazolines from β,γ‐Unsaturated Thiocarbamic Acid Esters** The reaction between N‐substituted β,γ‐unsaturated thiourethans and dry hydrogen chloride or bromine

Cyclisierungsreaktionen β,γ-ungesättigte
✍ Prof. Dr. M. Mühlstädt; Dr. R. Widera; Dipl.-Chem. B. Olk 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 417 KB

**Cyclization Reactions of β,γ‐Unsaturated Derivatives of Carbonic Acid. V. Reactions of β,γ‐Unsaturated Carbamic Acid Esters with Sulfenyl Chlorides — Synthesis of 3,5,5‐Trisubstituted Oxazolidine‐2‐ones** N,N‐Disubstituted β,γ‐Unsaturated urethanes **1** have been cyclized to 3,5,5‐trisubstituted