AI Article Synopsis
- The title compound, C(16)H(12)N(2)O(4)S, is synthesized through a reaction between 3-acetyl-4-hydroxycoumarin and thien-2-ylcarbonyl hydrazide.
- The structure features a pyran ring in a 2,4-dione tautomeric form and shows that the benzopyran ring is nearly flat with the thiophene ring, having a very small dihedral angle of 0.9°.
- Molecular stability is enhanced by an intra-molecular hydrogen bond, while inter-molecular hydrogen bonds form chains in the crystal structure, aligning them along the a axis.
Article Abstract
The title compound, C(16)H(12)N(2)O(4)S, was obtained by the condensation of 3-acetyl-4-hy-droxy-coumarin with thien-2-ylcarbonyl hydrazide. The pyran ring adopts a 2,4-dione tautomeric form. The benzopyran ring system is almost coplanar with the thio-phene ring [dihedral angle 0.9 (2)°]. The exocyclic C=C double bond has an E geometry. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains along the a axis.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3099777 | PMC |
| http://dx.doi.org/10.1107/S1600536811010907 | DOI Listing |
Publication Analysis
Top Keywords
n-h⋯o hydrogen
8
n'-[1-24-dioxo-34-dihydro-2h-1-benzopyran-3-yl-ideneeth-yl]thiophene-2-carbo-hydrazide title
4
title compound
4
compound c16h12n2o4s
4
c16h12n2o4s condensation
4
condensation 3-acetyl-4-hy-droxy-coumarin
4
3-acetyl-4-hy-droxy-coumarin thien-2-ylcarbonyl
4
thien-2-ylcarbonyl hydrazide
4
hydrazide pyran
4
pyran ring
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!