Preparation and absolute configuration of the enantiomeric 3,4-dihydro-4-methylcoumarins

Journal of the Chemical Society C: Organic Pub Date: DOI: 10.1039/J39700002324

Abstract

Enantiomers of 3-phenylbutyric acid have been converted into 3,4-dihydro-4-methylcoumarin. (+)-(R)-3,4-dihydro-4-methylcoumarin has [α]D20+35°(c 1 in benzene).

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