Abstract

The title compound, 2-amino-4-isopropyl-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3-carbonitrile (C 16 H 14 N 2 O 3 ) is synthesized via one-pot multi-component reaction (MCR) at room temperature using commercially available urea as inexpensive and environmentally benign organo catalyst and crystallizes in the triclinic space group P -1 with the unit-cell parameters: a= 7.8231(4), b= 8.0622(4), c= 12.3038(5) A, α = 99.443(4) o , β = 102.419(4) o , γ = 109.907(4) o and Z = 2. The crystal structure was solved by direct methods using single-crystal X-ray diffraction data collected at room temperature and refined by full-matrix least-squares procedures to a final R-value of 0.0405 for 2118 observed reflections. The packing of molecules within the unit cell is stabilized by N-H…O and N-H…N type of intermolecular hydrogen interactions. In addition C-H…π and π-π interactions are also observed in the crystal structure.

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