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Cyclisierungsreaktionen β, γ-ungesättigter Kohlensäurederivate. II. Reaktionen β, γ-ungesättigter Carbamidsäurederivate mit elektrophilen Reagenzien - Synthese von N-substituierten Oxazolidin-2-onen

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

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
522 KB
Volume
322
Category
Article
ISSN
1615-4150

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✦ Synopsis

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‐ones by dry hydrogen chloride in methylene chloride. The N‐substituted urethan 1a reacts with hydrogen chloride to form the urethan 2a and the 2‐oxazoline 3 Reaction of 1 with bromine yields the corresponding N‐substituted 5‐bromomethyl oxazolidine‐2‐ones 6

📜 SIMILAR VOLUMES

Cyclisierungsreaktionen β,γ-ungesättigte
Cyclisierungsreaktionen β,γ-ungesättigter Kohlensäurederivate. V . Reaktionen β,γ-ungesättigter Carbamidsäureester mit Sulfenylchloriden - Synthese von 3,5,5-trisubstituierten Oxazolidin-2-onen
✍ 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

Cyclisierungsreaktionen β, γ-ungesättigt
Cyclisierungsreaktionen β, γ-ungesättigter Kohlensäurederivate. IV [1]. Synthese von N-substituierten Thiazolidin-2-onen und 2-Alkoxy-2-thiazolinen aus β,γ-ungesättigten Thiocarbamidsäureestern
✍ 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
Cyclisierungsreaktionen β,γ-ungesättigter Kohlensäurederivate. VII. Synthese eindeutig N-acylierter Thiazolidin-2-one und Oxazolidin-2-one
✍ Dr. R. Widera; Prof. Dr. M. Mühlstädt 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 276 KB

**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