Ethyl 5-cyano-4-[2-(2,4-dichlorophenoxy)acetamido]-1-phenyl-1H-pyrrole-3-carboxylate

In the title compound, C22H17Cl2N3O4, the pyrrole ring and the 2,4-dichlorophenyl group form a dihedral angle of 8.14 (13)°; the phenyl ring is twisted with respect to the pyrrole ring, forming a dihedral angle of 60.77 (14)°. The C=O bond length is 1.213 (3) Å, indicating that the molecule is in the keto form, associated with a –CONH– group, and the amide group adopts the usual trans conformation. The molecule is stabilized by an intramolecular N—H...O hydrogen-bonding interaction. In the crystal, the stacked molecules exhibit intermolecular C—H...O and C—H...N hydrogen-bonding interactions.

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   Structure validation in chemical crystallography · 2009

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