2-Amino-5-oxo-4-(thiophen-2-yl)-5,6,7,8-tetrahydro-4<i>H</i>-chromene-3-carbonitrile
The crystal structure of the title compound, C<sub>14</sub>H<sub>12</sub>N<sub>2</sub>O<sub>2</sub>S, reveals two symmetrically independent mol-ecules within the asymmetric unit. Each mol-ecule contains a chromenone core attached to a 2-thio-phene ring, cyano, and amino groups. The 2-thio-phene ring of one of the two mol-ecules 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-thio-phene ring is nearly orthogonal to the fused 4<i>H</i>-pyran ring, with dihedral angles between the two sets of planes being 89.5 (5) and 89.63 (8)°. Inter-molecular hydrogen bonding, involving N-H⋯N and N-H⋯O inter-actions, creates two distinct motifs leading to the formation of a two-dimensional supra-molecular network along the crystallographic <i>ac</i> plane.
Authors
- Eric M. Njogu
- Sizwe J. Zamisa (ORCID: https://orcid.org/0000-0003-1968-381X)
- Bernard Omondi
- Carren Nyapola
Institutions
- Multimedia University of Kenya (KE)
- University of KwaZulu-Natal (ZA)
Publication Details
- Journal
- IUCrData
- Published
- 2024-11-08
- DOI
- https://doi.org/10.1107/s2414314624010496
- Citations
- 1
- Primary Topic
- Synthesis of Organic Compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.45
Funders
- Inyuvesi Yakwazulu-Natali