オクテン酸からγ-オクタラクトンの合成
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概要
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The author prepared CH<SUB>3</SUB>(CH<SUB>2</SUB>)<SUB>3</SUB>CHCH<SUB>2</SUB>CH<SUB>2</SUB>CO _??_ from CH<SUB>2</SUB>=CH (CH<SUB>2</SUB>)<SUB>5</SUB>COOH. The raw material is obtained from the oil after electrolytic oxidation of CH<SUB>3</SUB>OOC(CH<SUB>2</SUB>)<SUB>7</SUB>COOK and contains CH<SUB>3</SUB>(CH<SUB>2</SUB>)<SUB>6</SUB>COOH. Treatment of the mixture of two acids with conc. H<SUB>2</SUB>SO<SUB>4</SUB> results in a shift in the double bond of CH<SUB>2</SUB>=CH(CH<SUB>2</SUB>)<SUB>5</SUB>COOH until it reaches beta and gamma position, and this is followed by cyclization to the lactone. It posesses coconut like odor and is one of useful flavoring materials. At the same time, CH<SUB>3</SUB>(CH<SUB>2</SUB>)<SUB>6</SUB>COOH is recovered in this procedure and two components are separated effectively.
- 社団法人 日本油化学会の論文