反应详情

温度

45 °C

A mixture of 27-linoleoyloxyheptacosanoic acid (5 g, 7.2 moles), chloroform (90 ml), dried 1-hydroxybenzotriazole (3.2 g, 27.3 mmoles), phytosphingosine (3.07 g, 9.7 mmoles) and N,N'-diisopropylcarbodiimide (2.2 ml, 14.1 mmoles) was stirred under nitrogen for 90 minutes at 45° C. and then overnight at room temperature. After washing with 50 ml of a 1N hydrochloric acid solution and brine and filtration the organic layer was concentrated. After addition of hot isopropanol (150 ml) the mixture was filtered while still hot. After cooling down the precipitate formed was filtered off, washed with isopropanol (30 ml), acetone (10 ml) and dried giving 3.7 g of the title compound.

1. customovernight
2. customat room temperature
3. washAfter washing with 50 ml of a 1N hydrochloric acid solution and brine and filtration the organic layer
4. concentrationwas concentrated
5. additionAfter addition of hot isopropanol (150 ml) the mixture
6. filtrationwas filtered while still hot
7. temperatureAfter cooling down the precipitate
8. customformed
9. filtrationwas filtered off
10. washwashed with isopropanol (30 ml), acetone (10 ml)
11. customdried