Chemistry of 1,5-diketones: II. Specificity of transformations of polycyclic 1,5-diketones in acid media

Autor:	N. V. Pchelintseva, O. V. Fedotova, L. I. Markova, P. V. Reshetov, Ya. G. Kolevatova
Rok vydání:	2008
Předmět:	chemistry.chemical_compound Acetic anhydride Acetic acid 13c nmr spectroscopy chemistry Bicyclic molecule Organic Chemistry Halogen Organic chemistry Perchloric acid Hydroxylamine Hydrochloride
Zdroj:	Russian Journal of Organic Chemistry. 44:1267-1270
ISSN:	1608-3393 1070-4280
DOI:	10.1134/s1070428008090030
Popis:	2-(1,3-Diaryl-3-oxopropyl)cyclohexan-1-ones underwent carbo-and heterocyclization in a mixture of acetic acid with acetic anhydride in the presence of perchloric acid. The transformation of 2-(1,3-diaryl-3-oxopropyl)cyclohexan-1-ones into 2,4-diaryl-5,6,7,8-tetrahydrochromenylium salts was shown to involve intermediate 2,4-diarylbicyclo[3.3.1]non-2-en-9-ones. The structure of 2,4-diaryl-substituted bicyclo[3.3.1]non-2-en-9-ones and products of their reactions with halogens and hydroxylamine hydrochloride was confirmed by 1H and 13C NMR spectroscopy.
Databáze:	OpenAIRE
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