反应详情

A solution of trichloromethyl chloroformate (340 μL, 2.8 mmol) in anhydrous Et2O (5 mL) was cooled (−15° C.) and treated with a solution of dilinoleyl methanol (1.0 g, 1.9 mmol) and pyridine (230 μL, 2.8 mmol) in Et2O (5 mL). After stirring (1 h) the reaction mixture was filtered through a frit and the filtrate was added, dropwise, to a cool (0° C.) solution of 3-methylamino-propan-1-ol (1.1 mL, 11.3 mmol) in Et2O (5 mL). After stirring (5 min) the reaction mixture was filtered and concentrated. The crude material was subjected to chromatography (12%→20% EtOAc-hexanes) to yield (6Z,9Z,28Z,31Z)-heptatriaconta-6,9,28,31-tetraen-19-yl (3-hydroxypropyl)(methyl)carbamate (960 mg, 79%) as a colorless oil. Rf 0.17 (10% EtOAc-hexanes), FW 644.07, C42H77NO3.

1. filtrationwas filtered through a frit
2. additionthe filtrate was added
3. stirringAfter stirring (5 min) the reaction mixture
4. filtrationwas filtered
5. concentrationconcentrated