Simple Synthesis of 2-Aminoaryliminophosphoranes from N-Aryl-2-nitrosoanilines and Their Application in 2-Aminobenzimidazole Synthesis
摘要:
Condensation of N-aryl-2-nitrosoanilines with triphenylphosphine leads efficiently to substituted aryliminophosphoranes which, in turn, react with alkyl isocyanates furnishing 2-alkylaminobenzimidazole derivatives in high yields.
Simple Synthesis of 2-Aminoaryliminophosphoranes from N-Aryl-2-nitrosoanilines and Their Application in 2-Aminobenzimidazole Synthesis
作者:Zbigniew Wróbel、Emilia Łukasik
DOI:10.1055/s-0033-1340055
日期:——
Condensation of N-aryl-2-nitrosoanilines with triphenylphosphine leads efficiently to substituted aryliminophosphoranes which, in turn, react with alkyl isocyanates furnishing 2-alkylaminobenzimidazole derivatives in high yields.
2-(Arylamino)aryliminophosphoranes as Easily Available and Convenient Starting Materials in the Synthesis of 1,2,3-Benzotriazoles
作者:Zbigniew Wróbel、Emilia Łukasik
DOI:10.1055/s-0034-1378448
日期:——
1-Aryl-1,2,3-benzotriazole systems are synthesized in the high-yielding cyclocondensation of 2-(arylamino)aryliminophosphoranes under mild conditions. The reaction concludes the three-step, halogen-free synthetic route starting from simple nitroarenes and arylamines.