Bulletin of the Agricultural Chemical Society of Japan
Online ISSN : 1881-1272
Print ISSN : 0375-8397
ISSN-L : 0375-8397
Studies on Plenolic Lactones
Part IV. Preparation of α-Exo-unsaturated-γ-butyrolactones
Kyôhei YAMASHITAMasanao MATSUI
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1960 Volume 24 Issue 7 Pages 711-715

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Abstract

α-Exo-unsaturated-γ-butyrolactones were prepared. Reduction of α-benzylidene succinic acid esters with lithium aluminum hydride afford 2-benzylidene-l, 4-butanediols. Manganese dioxide oxidation of glycols followed by silver oxide oxidation and lactonization afford α-benzylidene-γ-butyrolactones. Thus α-benzylidene-, α-anisylidene-, α-veratrylidene-, α-(3, 4, 5-trimethoxybenzyli-dene)-β-(3, 4, 5-trimethoxybenzyl)-γ-butyrolactone were synthesized.

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