108839-24-3Relevant academic research and scientific papers
One-pot synthesis of cyclohexylamine and: N -aryl pyrroles via hydrogenation of nitroarenes over the Pd0.5Ru0.5-PVP catalyst
Chaudhari, Chandan,Sato, Katsutoshi,Ikeda, Yasuyuki,Terada, Kenji,Abe, Naoya,Nagaoka, Katsutoshi
, p. 9743 - 9746 (2021/06/15)
The direct synthesis of cyclohexylamine via the hydrogenation of nitrobenzene over monometallic (Pd, Ru or Rh) and bimetallic (PdxRu1-x) catalysts was studied. The Pd0.5Ru0.5-PVP catalyst was the most effective catalyst for this reaction. The catalyst can be reused and applied for the synthesis of N-aryl pyrroles and quinoxalines from nitrobenzenes.
Synthesis and investigation of mass spectra of some nitrogen heterocycles
Hasanen,Ibrahim
experimental part, p. 337 - 351 (2009/09/06)
2,3-DIPHENYL-1, 2-dihydro-quinoxaline (2), 2, 3-diphenyl-quinoxaline (3) and 2, 3-diphenyl-1, 2, 3, 4-tetrahydroquinoxaline (4) were prepared via the reaction of benzoin with o-phenylene diamine under different reaction conditions. Acylation of 2 and 4 with acetic anhydride yielded the corresponding N-acetyl (5) and N, N-1, 4-diacetyl derivative (7), respectively. Bromination of 2 with bromine gave the corresponding 6, 7-dibromo-2,3- diphenyl-quinoxaline (6). 2, 3, 5, 6-tetraphenylpyrazine (8) and 1-(benzylidene) amino-4, 5-diphenyl-1,5-dihydro-imidazoldine-2-thione (9) were synthesized by treatment of benzoin (1) with thiourea and benzaldehyde-thiosemicarbazone. The electron impact mass spectra of both of the above series of compounds have also been recorded and their fragmentation pattern is discussed.
Titanium(III) Chloride and Electrochemical Reduction of Pyrazine, Quinoxaline and Triazine Derivatives and of their Salts
Armand, J.,Chekir, K.,Pinson, J.
, p. 1237 - 1240 (2007/10/02)
The reduction of pyrazine, quinoxaline and triazine derivatives by titanium(III) chloride leads to di- or tetrahydrogenated compounds.High yields of tetrahydro compounds are also obtained through the reduction of quinoxalinium salts.These results are comp
