56058-94-7Relevant academic research and scientific papers
Chemoselective Hydrogenation of Nitroarenes Using an Air-Stable Base-Metal Catalyst
Zubar, Viktoriia,Dewanji, Abhishek,Rueping, Magnus
supporting information, p. 2742 - 2747 (2021/05/05)
The reduction of nitroarenes to anilines as well as azobenzenes to hydrazobenzenes using a single base-metal catalyst is reported. The hydrogenation reactions are performed with an air-and moisture-stable manganese catalyst and proceed under relatively mild reaction conditions. The transformation tolerates a broad range of functional groups, affording aniline derivatives and hydrazobenzenes in high yields. Mechanistic studies suggest that the reaction proceeds via a bifunctional activation involving metal-ligand cooperative catalysis.
Palladium-catalyzed direct ortho-sulfonylation of azobenzenes with arylsulfonyl chlorides via C-H activation
Xia, Chengcai,Wei, Zhenjiang,Shen, Chao,Xu, Jun,Yang, Yong,Su, Weike,Zhang, Pengfei
, p. 52588 - 52594 (2015/06/25)
A highly efficient and practical procedure to direct ortho-sulfonylation of azobenzenes' C-H bond with arylsulfonyl chlorides has been developed. The method was applicable to both electron-rich and electron-deficient substrates and delivered good yields f
One step synthesis of azo compounds from nitroaromatics and anilines
Zhao, Rui,Tan, Chunyan,Xie, Yonghua,Gao, Chunmei,Liu, Hongxia,Jiang, Yuyang
supporting information; experimental part, p. 3805 - 3809 (2011/08/09)
A general and efficient method for synthesis of both symmetric and asymmetric aromatic azo compounds in one single step has been developed. The nitro compounds were reduced and the substituted anilines were oxidized by each other without any metal in the
Reactions of dry arenediazonium o-benzenedisulfonimides with triorganoindium compounds
Barbero, Margherita,Cadamuro, Silvano,Dughera, Stefano,Giaveno, Cinzia
, p. 4884 - 4890 (2007/10/03)
The reaction between various arenediazonium o-benzenedisulfonimides and triorganoindium compounds is described. Depending on the reaction conditions, it is possible to obtain biaryls (16 examples, average yield of 79%) or diaryldiazenes (18 examples, average yield of 81 %). o-Benzenedisulfonimide can be recovered and reused to prepare additional arenediazonium o-benzenedisulfonimides. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.
Preparation of diazenes by electrophile C-coupling reactions of dry arenediazonium o-benzenedisulfonimides with Grignard reagents
Barbero, Margherita,Degani, Iacopo,Dughera, Stefano,Fochi, Rita,Perracino, Paolo
, p. 1235 - 1237 (2007/10/03)
The diaryldiazenes (19 examples) and aryl(tertbutyl)diazenes (3 examples) 3 were prepared by electrophilic C-coupling reactions of dry arenediazonium o-benzenedisulfonimides 1 with Grignard reagents. The reactions were carried out in anhyd THF at -78°C un
