The preparation of symmetrical azobenzenes from anilines by phase transfercatalyzed method

Authors
Wang, XY Wang, YL Li, JP Duan, ZF Zhang, ZY
Citation
Xy. Wang et al., The preparation of symmetrical azobenzenes from anilines by phase transfercatalyzed method, SYN COMMUN, 29(13), 1999, pp. 2271-2276
Citations number
16
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
29
Issue
13
Year of publication
1999
Pages
2271 - 2276
Database
ISI
SICI code
0039-7911(1999)29:13<2271:TPOSAF>2.0.ZU;2-K
Abstract
Used Galvinoxyl as catalyst, the phase transfer catalyzed method of oxidati on of primary amines to symmetrical azobenzenes with st saturated solution of potassium ferricyanide in 2N aqueous potassium hydroxide and dichloromet hane is described for the first time in this paper. The reaction has intima te relation with Hammett substituent constants. This report offers an effic ient and rapid method to prepare azobenzenes and a possible mechanism is al so suggested.