ChemInform Abstract: Synthesis of Dibenzo[d, f]diazepinones and Alkenylindolinones Through Ring Transformation of 2H‐Pyran‐2‐one‐3‐carbonitriles by Indolin‐2‐ones. Issue 43 (7th October 2013) - Kuma, Sandeep; Pratap, Ramendra; Kumar, Abhinav; Kumar, Brijesh; Tandon, Vishnu K.; Ram, Vishnu Ji