A Convenient Synthesis of β-Acetyl-γ-substituted-γ-butyrolactones and γ-Acetyl-δ-substituted-δ-valerolactones
- 1 April 1976
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 49 (4) , 1055-1058
- https://doi.org/10.1246/bcsj.49.1055
Abstract
A convenient method for the preparation of β-acetyl-γ-substituted-γ-butyrolactones (III) and γ-acetyl-δ-substituted-δ-valerolactones (IV) is described. It was established that α-angelicalactone (I) and 3,4-dihydro-6-methyl-2H-pyran-2-one(II) react with various aldehydes in the presence of boron trifluoride etherate (BF3·OEt2) to afford the corresponding γ and δ-lactones, respectively, in good yields.Keywords
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