A Facile and Efficient Method for the Synthesis of Labeled and Unlabeled Very Long Chain Polyunsaturated Fatty Acids
作者:Mats Hamberg
DOI:10.1002/aocs.12484
日期:2021.5
ω3‐hexaenoates of chain lengths of 32–40 carbons. The corresponding fatty acids of >98% purity were obtained following saponification and final purification. By using methyl [2,2,3,3,4,4‐2H6]10‐bromodecanoate as coupling partner it was possible to prepare a very long chain fatty acid in isotopically labeled form, i.e., [2,2,3,3,4,4‐2H6]14(Z),17(Z),20(Z),23(Z),26(Z),29(Z)‐dotriacontahexaenoic acid. Also prepared
有几种方法可用于延长脂肪酸酰基链。本文描述了以前发布的协议对烷基溴的锰基Wurtz型偶联方法对脂肪酸领域的适应性。22-Bromo-3(Z),6(Z),9(Z),12(Z),15(Z),18(Z)-二十二碳六烯,很容易从4(Z),7(Z),10制备(Z),13(Z),16(Z),19(Z二十二碳六烯酸通过在锰粉,镍催化剂和三联吡啶存在下于40°C搅拌4小时与同源ω-溴酸酯偶联。这产生了一系列链长为32–40的碳的ω3-己烯酸酯系列,产率为70–75%。皂化和最终纯化后,获得纯度> 98%的相应脂肪酸。通过使用甲基[2,2,3,3,4,4- 2 ħ 6 ] 10 bromodecanoate作为偶联伙伴有可能在同位素标记的形式制备一个非常长链脂肪酸,即[2,2,3 ,3,4,4- 2 ħ 6 ] 14(ž),17(ž),20(ž),23(ž),26(ž),29(ž)-十二碳六烯酸。还制备了单