Acetyl chloride → (Z)-11-Hexadecenyl acetate

Participants

Reaction Steps

9 g. of (Z)-11-hexadecenol-tetrahydropyranyl ether (Formula III, R=H, Y=tetrahydropyranyl) are dissolved in 25 ml. of acetic acid. 6 ml. of acetyl chloride are added, and the solution is boiled on an oil bath of about 80° C. for 3 hours. The mixture is cooled, poured onto 50 g. of ice, and extracted thrice with a total amount of 200 ml. of hexane. The extracts are combined, washed with 30 ml. of water, dried over magnesium sulfate, filtered, and the solvent is evaporated. The residue is distilled off in fine vacuo. 5.3 g. (55.7%) of (Z)-11-hexadecenyl acetate are obtained; b.p.: 142°-144° C./0.25 mmHG.; 120°-122° C./0.05 mmHg.

Provenance & Evidence