Methyl 1-oxo-2,3,4,9-tetrahydro-1H-carbazole-2-carboxylate

Abstract

In the title mol­ecule, C14H13NO3, the dihedral angle between the benzene ring and the fused pyrrole ring is 1.0 (1)°. The cyclo­hexene ring adopts a twist conformation. Three C atoms of the cyclo­hexene ring, with their attached H atoms, and all atoms of the ester group, are disordered over two positions; the site-occupancy factors are ca 0.88 and 0.12. The crystal structure is stabilized by inter­molecular N—H⋯O and C—H⋯O hydrogen bonds.