Palmitoylethanolamide → N-[2-(ethoxycarbonyl)oxyethyl]hexadecanamide
反応式
[OH:1][CH2:2][CH2:3][NH:4][C:5](=[O:21])[CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20].CN1CCOCC1.Cl[C:30]([O:32][CH2:33][CH3:34])=[O:31]>O1CCCC1>[CH2:33]([O:32][C:30]([O:1][CH2:2][CH2:3][NH:4][C:5](=[O:21])[CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])=[O:31])[CH3:34]参加物
5
実験手順
3.0 g of N-(2-hydroxyethyl) hexadecanamide (10 mmoles) was dissolved in 75 ml of tetrahydrofuran (THF) at 45° C. with stirring. 1.11 g of N-methylmorpholine (11 moles) and 1.19 g of ethyl chloroformate (11 moles) were added and the resulting mixture was stirred for a further 3 hours at ambient temperature. The mixture was then evaporated to dryness under vacuum. The residue was taken up with 50 ml of water and extracted 3 times with 30 ml of ethyl acetate; the organic phases were washed twice with 20 ml of water, recombined and evaporated to dryness. The residue was crystallized from 30 ml of tert-butylmethyl ether. The crystallizate was separated by filtration, washed twice with 5 ml of cold tert-butylmethyl ether and finally dried under a high degree of vacuum. The yield of the reaction was 93%.