PROCESS FOR PRODUCING DIHYDROFURANONE DERIVATIVES

The present invention provides a process for preparing dihydrofuranone derivative of the fornula (III): wherein R and R are individually lower alkyl, and R is hydrogen or lower alkyl, by reacting a dihydrofuranone derivative of the formula (I): wherein R is as defined above, with a malonic acid deri...

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Bibliographic Details
Main Authors IMUTA,JUNICHI,JP, ORI,AIICHIRO,JP, KIHARA,NORIAKI,JP
Format Patent
LanguageEnglish
Published 30.03.1992
Edition5
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The present invention provides a process for preparing dihydrofuranone derivative of the fornula (III): wherein R and R are individually lower alkyl, and R is hydrogen or lower alkyl, by reacting a dihydrofuranone derivative of the formula (I): wherein R is as defined above, with a malonic acid derivative of the formula (II): wherein R and R are as defined above, in the presence of an alkalimetal alkoxide and/or an alkalimetal hydroxide.
Bibliography:Application Number: HU19910001528