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Updated: Jun 5, 2026
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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
5-Hydr-oxy-7-meth-oxy-4H-chromen-4-one
The molecular structure of a compound from Laretia acualis features a stabilizing intramolecular hydrogen bond. Its crystal packing involves pi-pi stacking interactions, with a planar chromene unit.
Area of Science:
- Natural Product Chemistry
- Crystallography
- Organic Chemistry
Background:
- Laretia acualis is a plant source of bioactive compounds.
- Understanding molecular conformation is crucial for drug design and material science.
- Intramolecular hydrogen bonding influences molecular stability and properties.
Purpose of the Study:
- To determine the molecular conformation of a compound isolated from Laretia acualis.
- To investigate the crystal packing and intermolecular interactions.
- To analyze the structural features of the chromene unit.
Main Methods:
- X-ray crystallography was used to analyze the crystal structure.
- Spectroscopic methods were employed for compound isolation and characterization.
- Computational chemistry may be used to further analyze bonding.
Main Results:
- The compound's molecular conformation is stabilized by a strong intramolecular hydrogen bond between hydroxyl and carbonyl groups.
- Crystal packing analysis revealed significant pi-pi stacking interactions.
- The 4H-1-benzopyran-4-one (chromene) core was found to be essentially planar.
Conclusions:
- The identified compound possesses a stable molecular conformation due to intramolecular hydrogen bonding.
- Pi-pi stacking interactions play a role in the crystal lattice arrangement.
- The planar nature of the chromene unit may influence its electronic and biological properties.
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