作者:E. A. Dikusar、N. A. Zhukovskaya、K. L. Moiseichuk、E. G. Zalesskaya、O. G. Vyglazov、P. V. Kurman
DOI:10.1007/s10600-008-0022-z
日期:2008.1
Citral (3,7-dimethyl-2,6-octadienal, 1) occurs in lemongrass, cubeb, citrus, and other essential oils as a mixture of the Eand Z-isomers in a 7:3 ratio. This aldehyde ( 1) has a strong lemon odor [1] and is used widely in many perfume compositions. The goal of our work was to develop preparative synthetic methods of citral oxime esters through the reaction of citral oxime (2) with alkylcarboxylic acid
柠檬醛(3,7-二甲基-2,6-辛二烯醛,1)作为 E 和 Z 异构体以 7:3 的混合物存在于柠檬草、立方、柑橘和其他精油中。这种醛 (1) 具有强烈的柠檬气味 [1],广泛用于许多香水组合物中。我们工作的目标是通过柠檬醛肟 (2) 与烷基羧酸酐或烷基和芳基羧酸氯化物在吡啶存在下的反应,开发柠檬醛肟酯的制备合成方法。通过简单地混合适当的试剂并在不使用冷却和长时间搅拌的情况下进行合成,在 20-23°C 下进行了 24-36 小时的合成。柠檬醛肟酯3-22以74-88%的产率制备。