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4-(4-Chlorophenyl)-7,7-dimethyl-7,8-dihydro-4H-1-benzopyran-2,5(3H,6H)-dione
The title compound, C(17)H(17)ClO(3), has been synthesized by the reaction of p-chlorobenzaldehyde, isopropylidene malonate and 5,5-dimethylcyclohexane-1,3-dione with triethylbenzylammonium chloride in water as a green solvent. The six membered pyranone ring of the hexahydrocoumarin system...
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2009
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2980257/ https://www.ncbi.nlm.nih.gov/pubmed/21580158 http://dx.doi.org/10.1107/S1600536809051320 |
Sumario: | The title compound, C(17)H(17)ClO(3), has been synthesized by the reaction of p-chlorobenzaldehyde, isopropylidene malonate and 5,5-dimethylcyclohexane-1,3-dione with triethylbenzylammonium chloride in water as a green solvent. The six membered pyranone ring of the hexahydrocoumarin system has a screw-boat conformation while the dimethylcyclohexenone system has a distorted envelope conformation. The dihedral angle between the least-squares planes of the coumarin ring system and the benzene ring is 85.64 (9)°. |
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