Synthesis of dihydrocoumarin carbamate derivatives

The condensation at room temperature in the trifluoroacetic acid of para - and meta -hydroxy-substituted methylphenylcarbamate with cinnamic acids or their esters containing electron-donor substituents in the benzene ring yielded dihydrocoumarins with a carbamate function attached to C 6 or C 7 . Un...

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Bibliographic Details
Published in:Russian journal of organic chemistry 2008-11, Vol.44 (11), p.1649-1651
Main Authors: Imasheva, N. M., Velikorodov, A. V., Krivosheev, O. O.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Organic Chemistry
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Summary:The condensation at room temperature in the trifluoroacetic acid of para - and meta -hydroxy-substituted methylphenylcarbamate with cinnamic acids or their esters containing electron-donor substituents in the benzene ring yielded dihydrocoumarins with a carbamate function attached to C 6 or C 7 . Under similar conditions the methyl(2-hydroxyphenyl)carbamate, cinnamic acids or their esters containing electron-acceptor substituents or electron-donor substituents in the ortho -position of the benzene ring are not involved into the condensation.
ISSN:1070-4280
1608-3393
DOI:10.1134/S1070428008110158