ChemInform Abstract: 4‐Aryl‐1‐hydrazino‐5H‐2, 3‐benzodiazepine (III) and 1‐Aryl‐4‐hydrazino‐5H‐2, 3‐benzodiazepine (XI) in the Synthesis of Condensed [1, 2]Diazepines. Issue 46 (24th October 2013)