The oxidation of several fluoroanilines with potassiumferricyanide and potassium hydroxide is described. In this oxidation, the major products are fluoroazobenzenes. In the case of 2-fluoro-substituted anilines, heterocyclic fluorophenazines were obtained in low to moderate yields. The optimal conditions for the reaction and the mechanism are presented.Key words: oxidation, fluoroanilines, fluoroazobenzenes
The oxidation of several fluoroanilines to fluoroazobenzenes with potassiumferricyanide and KOH in a solvent mixture of is described.
描述了在铁溶剂中用铁氰化钾和KOH将几种氟苯胺氧化为氟偶氮苯。
Copper-Manganese Spinel Oxide Catalyzed Synthesis of Amides and Azobenzenes via Aminyl Radical Cations
作者:Shaista Sultan、Manjeet Kumar、Shekaraiah Devari、Debaraj Mukherjee、Bhahwal Ali Shah
DOI:10.1002/cctc.201501218
日期:2016.2
A highly efficient Cu–Mn‐catalyzed process for the aminolysis of esters was developed. Also, the catalyst promoted the self‐ and cross‐dehydrogenativecoupling of anilines to generate symmetrical and unsymmetrical azobenzenes, respectively. The reactions were performed under neutral conditions with an inexpensive catalyst, gave high yields, and offered wide functional group tolerance.