A New, Efficient and Environmentally Benign Protocol for the Synthesis of 1,5‐Benzodiazepines using Cerium(III) Chloride/Sodium Iodide Supported on Silica Gel

Abstract A novel and green approach has been described for the synthesis of 2,3‐dihydro‐1H‐1,5‐benzodiazepines from o‐phenylenediamines and ketones using cerium(III) chloride/sodium iodide supported on silica gel under mild and heterogeneous conditions. The reactions are carried out at room temperature without using any organic solvent.