二辛酰基乙二醇

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Ethylene glycol di-n-octanoate was prepared as described for ethylene glycol di-n-hexanoate (except that heating was conducted at 140°- 150° C.) from octanoyl chloride (483 ml, 2.83 mol), anhydrous ethylene glycol (78 ml, 1.40 mol) and imidazole (193 g, 2.84 mol). Obtained 381.3 g (86.7% purified yield) of clear, colorless, mobile oil (bp 145°°148° C./<1 mm Hg). Obtained 381.3 g (86.7% purified yield) of clear, colorless, mobile oil (bp 145°°148° C./<1 mm Hg)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Three fractions containing 68.6 to 97.8% of 2-hydroxyethyl caprylate were obtained by heating caprylic acid (1.25 mol; 180 g) with ethylene glycol (8.27 mol; 513.5 g) to boiling temperature for 5 hours and gradual distillation; the overall yield of 2-hydroxyethyl caprylate was 61.3%. In addition to 2-hydroxyethyl caprylate, ethylene dicaprylate was formed from 21% of caprylic acid. In a similar experiment, the reaction mixture after 7 hours of heating was first extracted with benzene and the benzene extract with water, instead of direct distillation. Caprylic acid was consumed in 60.6% for 2-hydroxyethyl caprylate, whereas ethylene dicaprylate resulted from 21.5% of acid; distillation gave fractions of raw product containing 97.6 to 98.5% of 2-hydroxyethyl caprylate. Further procedure was carried out according to example 1. were obtained for 5 hours gradual distillation In addition to 2-hydroxyethyl caprylate