Baker’s Yeast-Mediated Regioselective Reduction of 2,4-Dinitroacylanilines: Synthesis of 2-Substituted 6-Nitrobenzimidazoles
作者:Arturo Navarro-Ocaña、Luís F. Olguín、Manuel Jiménez-Estrada、Eduardo Bárzana
DOI:10.1055/s-2004-837203
日期:——
Several 2,4-dinitro-N-acylanilines were regioselectively reduced at the C-2 position by baker's yeast in slightly basic media (pH = 7.5) to afford 2-amino-4-nitroacylanilines, which were then cyclized under acidic conditions to the corresponding 2-substituted-6-nitrobenzimidazoles. The benzimidazoles thus obtained can be employed as precursors for bioactive derivatives.
N-Formylanilido aromatic compounds, process for their preparation and process for the preparation of the corresponding N-phenyl aromatic amino compounds
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0003259B1
公开(公告)日:1982-03-24
US4292446A
申请人:——
公开号:US4292446A
公开(公告)日:1981-09-29
Mironov; Mokrushin, Russian Journal of Organic Chemistry, 1999, vol. 35, # 5, p. 693 - 697