Water as a Direct Hydrogen Donor in Supercritical Carbon Dioxide: A Novel and Efficient Zn-H₂O-CO₂ System for Chemo-selective Reduction of Nitrobenzenes to Anilines

摘要

An eco-friendly and cheap Zn-H2O-CO2 system was presented for chemoselective reduction of nitrobenzenes to anilines with high yields (80% -97% isolated yields) in supercritical carbon dioxide. This process brings together the very important green chemistry technologies-the use of carbon dioxide as a solvent and the use of water as a hydrogen donor.