cis-3,5a-Dimethyl-1-oxo-5a,6,8,9-tetrahydro-1H,7H-pyrano[4,3-b][1]benzopyran-6-yl Formate

Autor:	C. Y. Meyers, Duy H. Hua, P. D. Robinson, Yi Chen
Rok vydání:	1997
Předmět:	chemistry.chemical_classification Cyclohexane Stereochemistry Cyclohexane conformation General Medicine Crystal structure Ring (chemistry) General Biochemistry Genetics and Molecular Biology Benzopyran chemistry.chemical_compound chemistry Molecule Formate Lactone
Zdroj:	Acta Crystallographica Section C Crystal Structure Communications. 53:1642-1644
ISSN:	0108-2701
DOI:	10.1107/s0108270197008603
Popis:	Characterization of the title compound, C 15 H 16 O 5 , by X-ray diffraction affirms its linearly fused tricyclic structure and the chair conformation of the cyclohexane ring on which the methyl and adjacent formyloxy groups are cis, the former being axial and the latter equatorial. The C=C bond γ,δ to the carbonyl is longer, while the C=C bond α,β to the carbonyl is shorter than their counterparts in a 3-substituted 4-hydroxy-6-methyl-2-pyrone.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::49d4cc314e55dedc35d5a54a96f1674c https://doi.org/10.1107/s0108270197008603 Zobrazit plný text záznamu Plný text