Acta Cryst. (2004). E60, o187-o189  [ doi:10.1107/S1600536804000078 ]

{3-[(4-Chloroanilino)carbonyl]-2-[(3,4-dichlorophenyl)imino]-8-methyl-2H-pyrano[2,3-c]pyridin-5-yl}methyl acetate

S. M. Kovalenko, V. N. Baumer, I. O. Zhuravel and V. P. Chernykh

Abstract: The coplanar arrangement of rings in the title molecule, C₂₅H₁₈Cl₃N₃O₄, is accompanied by the formation of short intramolecular OH (2.20 and 2.26  Å) contacts. A strong N-HN hydrogen bond [NN  =  2.698  (4)  Å and N-HN  =  142°] is present and, as a result, the exocyclic bond angles at the C atoms in the 2- and 3-positions of the pyranone ring are slightly distorted. The coplanar rings form a layered structure in which a short intermolecular ClCl(-x, 1  -  y, 1  -  z) contact of 3.280  (2)  Å is observed.

Online 17 January 2004

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