Chemoselective reduction of aromatic nitro and azo compounds in ionic liquids using zinc and ammonium salts |
| |
Authors: | Faiz Ahmed Khan Jyotirmayee DashCh Sudheer Rakesh Kumar Gupta |
| |
Affiliation: | Department of Chemistry, Indian Institute of Technology, Kanpur 208 016, India |
| |
Abstract: | Nitroarenes were chemoselectively reduced to the corresponding amines using zinc and aqueous ammonium salts in ionic liquids as a safe and recyclable reaction medium. Our results specify the effect of ammonium salts in the process; the combination of Zn/NH4Cl in [bmim][PF6] or Zn/HCO2NH4 in [bmim][BF4] were the suitable conditions for the reduction of nitroarenes. Azobenzenes were also smoothly reduced to hydrazobenzenes with Zn/HCO2NH4 (aq.) in recyclable [bmim][BF4] without any over reduction to the corresponding anilines. |
| |
Keywords: | ionic liquids zinc reduction nitroarenes anilines azo compounds hydrazobenzenes |
本文献已被 ScienceDirect 等数据库收录! |