5-Methyl-1,2,3,3a-tetrahydrobenzo[e]pyrrolo[2,1-b][1,3]oxazepin-10(5H)-one

Abstract

The asymmetric unit of the title compound, C13H15NO2, the main product of a photoreaction, contains two crystallographically independent molecules. In both molecules, the conformation of the seven-membered ring is twist sofa and that of the five-membered rings is envelope. In the crystal, molecules are linked by weak intermolecular C—H...O hydrogen bonds.