IUCrData (Nov 2024)

2-Amino-5-oxo-4-(thiophen-2-yl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile

  • Carren Nyapola,
  • Sizwe J. Zamisa,
  • Eric M. Njogu,
  • Bernard Omondi

DOI
https://doi.org/10.1107/S2414314624010496
Journal volume & issue
Vol. 9, no. 11
p. x241049

Abstract

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The crystal structure of the title compound, C14H12N2O2S, reveals two symmetrically independent molecules within the asymmetric unit. Each molecule contains a chromenone core attached to a 2-thiophene ring, cyano, and amino groups. The 2-thiophene ring of one of the two molecules in the asymmetric unit was found to be disordered over two positions, with the major component having a site occupancy factor of 0.837 (2). The 2-thiophene ring is nearly orthogonal to the fused 4H-pyran ring, with dihedral angles between the two sets of planes being 89.5 (5) and 89.63 (8)°. Intermolecular hydrogen bonding, involving N—H...N and N—H...O interactions, creates two distinct motifs leading to the formation of a two-dimensional supramolecular network along the crystallographic ac plane.

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