ChemInform Abstract: Synthesis of Novel Pyrazino[2, 1‐a]isoindolediones via Intramolecular Hydroamination of 2, 3‐Dihydro‐3‐oxo‐2‐(prop‐2‐yn‐1‐yl)‐1H‐isoindole‐1‐carboxamides. Issue 33 (July 2016)