Nitrosierungen an Hydrazinderivaten, 9. Mitt.: Neuartige oxidative C-N-Verknüpfungen von Indazolen und Benzotriazolen mit Cycloheptatrien sowie Di- und Triphenylmethanderivaten

✍ Scribed by Wolfgang Hanefeld; Ingrid Hunz

• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 390 KB
• Volume: 326
• Category: Article
• ISSN: 0365-6233
• DOI: 10.1002/ardp.19933260604

✦ Synopsis

Nitrosation of Derivatives of Hydrazines, IX'): Novel Oxidative C-N-

Coupling of Indazoles and Benzotriazoles with Cyclohepatriene, Diand Triphenylmethane Derivatives

In the presence of 2,3-dichloro-5,6-dicyano-benzoquinone (DDQ) indazoles and benzotriazoles react with compounds forming stabilized carbenium ions like cycloheptatriene, di-and triphenylmethane, fluorene, xanthene and thioxanthene, yielding C-N-coupled products.

Indazole und Benzotriazole reagieren unter Einwirkung von