Toluene → 1-(dimethylamino)-4-((9Z,12Z)-octadeca-9,12-dienyloxy)butan-2-ol

A toluene (10 mL) solution of 3-(dimethylamino)-1,2-propanediol (98%, 1.00 g, 8.39 mmol, 1.0 equiv)) was carefully added dropwise to a toluene suspension (5 mL) of NaH (60%, 0.34 g, 8.39 mmol, 1.0 equiv) at 0° C. under argon and the resultant was stirred for 15 minutes. A toluene solution (5 mL) of linoleyl methanesulfonate (2.87 g, 8.39 mmol, 1.0 equiv) was added dropwise to the stirring mixture and the reaction was then stirred for 18 hours at 90° C. The mixture was then cooled to room temperature and quenched by the slow addition of ethanol (10 mL). The mixture was concentrated and the residue was taken up with deionized water (20 mL) and extracted three times with EtOAc (30 mL). The combined organic extracts were washed with deionized water (20 mL), dried (MgSO4), filtered, and concentrated. Chromatographic purification of the residue (0-5% MeOH in chloroform) provided 1-(dimethylamino)-4-((9Z,12Z)-octadeca-9,12-dienyloxy)butan-2-ol, a thick, clear oil.

1. stirringthe reaction was then stirred for 18 hours at 90° C
2. customquenched by the slow addition of ethanol (10 mL)
3. concentrationThe mixture was concentrated
4. extractionextracted three times with EtOAc (30 mL)
5. washThe combined organic extracts were washed with deionized water (20 mL)
6. dry with materialdried (MgSO4)
7. filtrationfiltered
8. concentrationconcentrated
9. customChromatographic purification of the residue (0-5% MeOH in chloroform)

ORD record

ord-6f76b2409af244a0b486bcafe5621eb8

Source dataset

uspto-grants-2013_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08568772B2