Optical and geometric isomers of some fatty acids with vicinal hydroxy groups
作者:D. F. Ewing、C. Y. Hopkins
DOI:10.1139/v67-206
日期:1967.6.1
resolved by means of the brucine salts into the optically active forms. Levorotatory threo-11,12-dihydroxyeicosanoic acid was obtained from the corresponding racemate by crystallization of the ephedrine salts.The conformation of the geometric isomers of certain dihydroxy long-chain acids and their derivatives was studied by means of nuclear magneticresonancespectra. There was a small but significant
AN OXYGENATED FATTY ACID FROM THE SEED OIL OF HIBISCUS ESCULENTUS
作者:Mary J. Chisholm、C. Y. Hopkins
DOI:10.1139/v57-053
日期:1957.4.1
The fatty acids of okra seed oil (Hibiscusesculentus L.) were examined. Acetylation of the oil, followed by saponification and separation of the acids, gave 12,13-dihydroxyoleic acid. From this and other evidence it is concluded that 12,13-epoxyoleic acid is present as a constituent of the glycerides. An oxygenatedacid has not been identified previously in seed oils of this plant family (Malvaceae)
检查了秋葵籽油 (Hibiscusesculentus L.) 的脂肪酸。油的乙酰化,然后皂化和酸的分离,得到12,13-二羟基油酸。从这个和其他证据得出结论,12,13-环氧油酸作为甘油酯的成分存在。先前尚未在该植物科(锦葵科)的种子油中发现含氧酸。还发现了 9-十六碳烯酸。总脂肪酸组成通过甲酯的蒸馏和蒸馏馏分的分析来确定。确定的酸的百分比估计如下:9-十六烯酸0.6、棕榈酸29、亚油酸39、油酸23、硬脂酸2、12,13-环氧油酸3、花生酸<1。未检测到肉豆蔻酸、二十碳烯酸和三烯酸,如果存在,
319. Fatty acids. Part IV. The preparation of eight 9 : 10 : 12 : 13-tetrahydroxystearic acids
作者:K. E. Bharucha、F. D. Gunstone
DOI:10.1039/jr9560001611
日期:——
Fatty acids. Part II. The nature of the oxygenated acid present in Vernonia anthelmintica(Willd.) seed oil
作者:F. D. Gunstone
DOI:10.1039/jr9540001611
日期:——
Chisholm; Hopkins, Chemistry and industry, 1960, p. 1134