Process for the preparation of novel 2-alkoxy-3,4-dihydro-2H-pyrans

The 2-alkoxy-3,4-dihydro-2H-pyrans of the formula I are prepared by reaction of correspondingly 2,3-substituted acrolein with an appropriate vinyl ether. R1 and R2 are identical or different and denote a phenyl group which is optionally substituted one or more times, or a heterocyclic radical, and R...

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Bibliographic Details
Main Authors MAXIMILIAN GRASSBERGER, HELLMUTH REINSHAGEN
Format Patent
LanguageEnglish
Published 15.02.1979
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The 2-alkoxy-3,4-dihydro-2H-pyrans of the formula I are prepared by reaction of correspondingly 2,3-substituted acrolein with an appropriate vinyl ether. R1 and R2 are identical or different and denote a phenyl group which is optionally substituted one or more times, or a heterocyclic radical, and R3 is a lower alkyl group. The compounds have antiviral activity, especially against influenza viruses.
Bibliography:Application Number: CH19750003356