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. 2007 Dec 18;64(Pt 1):o293.
doi: 10.1107/S1600536807063428.

Dimethyl 4-(4-formyl-phen-yl)-2,6-di-methyl-1,4-dihydro-pyridine-3,5-dicar-boxyl-ate

Fei Teng  1 , Fanpeng Kong, Qingjian Liu
Affiliations

Dimethyl 4-(4-formyl-phen-yl)-2,6-di-methyl-1,4-dihydro-pyridine-3,5-dicar-boxyl-ate

Fei Teng et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(18)H(19)NO(5), is a product of the Hantzsch reaction of p-phthalaldehyde, methyl acetoacetate, and ammonium acetate. The 1,4-dihydro-pyridine ring of the mol-ecule adopts a flattened boat conformation. The benzene ring is almost perpendicular to the 1,4-dihydro-pyridine ring; the plane through the six C atoms of the benzene ring and the plane through the four C atoms that form the base of the boat-shaped 1,4-dihydro-pyridine ring (excluding the ring N atom and the opposite ring C atom) make a dihedral angle of 87.60 (3)°. Inter-molecular N-H⋯O hydrogen bonds result in the formation of extended chains along the a axis.

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Figures

Fig. 1.
Fig. 1.
The crystal structure drawing for (I) with the atom-numbering scheme and ellipsoids shown at the 50% probability level.
Fig. 2.
Fig. 2.
The crystal packing diagram for (I). Hydrogen bonds are shown as dashed lines.
See this image and copyright information in PMC

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