Ethyl 4-oxo-2,3,4,9-tetra-hydro-1H-carbazole-3-carboxyl-ate

Abstract

In the title compound, C(15)H(15)NO(3), the carbazole skeleton includes an eth-oxy-carbonyl group at the 3-position. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, forming a dihedral angle of 0.89 (4)°. The cyclo-hexenone ring has an envelope conformation. In the crystal, inter-molecular N-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules into a three dimensional network. A weak C-H⋯π inter-action is also observed.

Fig. 1.

The molecular structure of (I) with displacement ellipsoids drawn at the 50% probability level.

Fig. 2.

A view of the crystal packing of the title compound. The N—H···O and C—H···O hydrogen bonds are shown as dashed lines [H-atoms not involved in hydrogen bonding have been omitted for clarity].