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Oxidative Kupplung CH-acider Verbindungen mit p-Phenylendiaminen. VII [1]. Synthese und oxidative Kupplung von 5-Hydroxy-naphth[2,1-d]1,3-oxathiol-2-onen

✍ Scribed by Prof. Dr. G. Mann; Dr. H. Wilde; Prof. Dr. S. Hauptmann; Dr. M. Naumann; Dipl.-Chem. P. Lepom

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
442 KB
Volume
323
Category
Article
ISSN
1615-4150

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✦ Synopsis

Oxidative Coupling of CH‐acid Compounds with p‐Phenylenediamines. VII. Synthesis and Oxidative Coupling of 5‐Hydroxy‐naphth[2,1‐d] 1,3‐oxathiol‐2‐ones

5‐Hydroxy‐naphth[2,1‐d]1,3‐oxathiol‐2‐ones with different substituents 1–21 were synthesized using the following procedures: Condensation of substituted naphthoquinones‐1,4 with thiourea (A); electrophilic substitution of 5‐hydroxy‐naphth[2,1‐d]1,3‐oxathiol‐2‐one (B); Fries‐reaction of 5‐acyloxy‐ and 5‐N‐phenylcarbamoyloxy‐naphth[2,1‐d]1,3‐oxathiol‐2‐ones (C). Oxidative coupling of the compounds with N,N‐diethyl‐quinone‐1,4‐diimine yielded thiazine dyes.

📜 SIMILAR VOLUMES

Oxidative Kupplung CH-acider Verbindunge
Oxidative Kupplung CH-acider Verbindungen mit p-Phenylendiaminen. VIII [1]. Synthese von 5H-Benzo[a]phenothiazin-5-onen aus Naphth[2,1-d]1,3-oxathiol-2-onen
✍ Prof. Dr. G. Mann; Dr. H. Wilde; Prof. Dr. S. Hauptmann; Dr. J. Lehmann; Dr. M. 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 380 KB

**Oxidative Coupling of CH‐acid Compounds with p‐Phenylenediamines. VIII. Synthesis of 5H‐Benzo[a]phenothiazin‐5‐ones from Naphth[2,1‐d]1,3‐oxathiol‐2‐ones** Reaction of 5‐hydroxynaphth[2,1‐d]1,3‐oxathiol‐2‐ones with N,N‐diethyl‐quinone‐1,4‐diimine leads to 5H‐benzo[a]phenothiazin‐5‐ones **1**–**21

Oxidative Kupplung CH-acider Verbindunge
Oxidative Kupplung CH-acider Verbindungen mit p-Phenylendiaminen. V. Massenspektrometrische Fragmentierung von 4-substituierten 3-Methyl-1-phenyl-pyrazolin-5-onen
✍ Dr. H. Wilde; Doz. Dr. R. Herzschuh; Dipl.-Chem. P. Lepom; Prof. Dr. G. Mann 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 253 KB

**Oxidative Coupling of CH‐acid Compounds with p‐Phenylenediamines. V. Mass Spectrometric Fragmentation of 4‐Substituted 3‐Methyl‐1‐phenyl‐pyrazolin‐5‐ones** The mass spectra of 3‐methyl‐1‐phenyl‐pyrazolin‐5‐one **1** and 4‐substituted derivatives **2–18** have been studied and the fragmentation me