119707-16-3Relevant academic research and scientific papers
Copper-catalyzed direct synthesis of di- and triphenylamines: A dramatic accelerating effect of 2-aminophenols
Li, Yaming,Wang, Huifeng,Jiang, Linlin,Sun, Fangfang,Fu, Xinmei,Duan, Chunying
experimental part, p. 6967 - 6973 (2011/02/25)
Utilizing the dramatic accelerating effect of 2-aminophenols, we developed a copper-catalyzed system for the selective synthesis of di- and triphenylamines. In addition, N- and O-arylation could be achieved in coupling reactions between 2-aminophenol and nitroaryl halides. A copper-catalyzed system for the selective synthesis of di- and triphenylamines has been developed. This new protocol provides a direct and efficient way to synthesize o-hydroxy-substituted di- and triphenylamines. Copyright
The Reduction of Some 2,2'-Dinitrodiaryl Compounds and Related Compounds by Thiourea S,S-Dioxide (Formamidinesulfinic Acid)
Wilshire, John F. K.
, p. 995 - 1001 (2007/10/02)
The reaction of thiourea S,S-dioxide (formamidinesulfinic acid) in ethanolic alkali with 2,2'-dinitrobiphenyl and several related dinitro compounds possessing an-X-bridge (where X = NH, NMe, O and S), located at the 1,1'-positions, has been investigated.With 2,2'-dinitrobiphenyl (which gives good yields of benzocinnoline and its oxides) and, to a minor extent, with 2,2'-dinitrodiphenylamine, an intramolecular reaction occured to give heterocyclic products; with each of the other dinitro compounds, the only product obtained was formed as the result of a Smiles rearrangement.
