Synthesis and structural conformation of N-substituted 1,4-dihyropyridine derivatives by M. Mahendra, B. H. Doreswamy, M. A. Sridhar, J. Shashidhara Prasad, A. R. Parecha, J. A. Patel, D. Manvar, K. Dholaria, and A. Shah

Crystal Research and Technology

Cryst. Res. Technol. 41, 92 (2006) - Abstract -

Synthesis and structural conformation of N-substituted 1,4-dihyropyridine derivatives

M. Mahendra, B. H. Doreswamy, M. A. Sridhar, J. Shashidhara Prasad, A. R. Parecha, J. A. Patel*, D. Manvar*, K. Dholaria*, and A. Shah*

Department of Studies in Physics, University of Mysore, Mysore~570 006, India
*Department of Chemistry, Saurashtra University, Rajkot-360 005, India

Keywords	N-substituted 1,4-dihyropyridine, synthesis, crystal structure
PACS	61.10.Nz
DOI	10.1002/crat.200410539

N-(Phenyl)-3,5-dicarbethoxy-2,6-dimethyl-4-(phenyl)-1,4-dihydropyridine (A) and N-(4-methoxy phenyl)-3,5 dicarbethoxy-2,6 dimethyl-4-(3-nitro phenyl)-1,4-dihydropyridine (B) has been synthesized as per scheme and characterized by the X-ray diffraction method. The compound A crystallizes in monoclinic space group P2₁/c with cell parameters a = 9.2770(11)Å, b = 8.6410(5)Å, c = 27.601(3)Å, β = 97.724(3)°, Z = 4. The compound B crystallizes in monoclinic space group P2₁/c with cell parameters a = 11.229(6), b = 12.746(7)Å, c =17.606(6)Å, β = 104.531(3)°, Z = 4. The structures exhibit both intra and intermolecular hydrogen bonds. Dihydropyridine ring of both the compounds adopt a flat boat conformation.

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