4-Toluenesulfonyl chloride → 3-O-Octadecyl-2-O-tosyl-1-O-tritylglycerol

Participants

Reaction Steps

In 9 ml of pyridine was dissolved 5.0 g (8.52 millimoles) of 3-O-octadecyl-1-O-tritylglycerol, and 1.95 g (10.22 millimoles) of tosyl chloride was added to the solution. The mixture was stirred at room temperature overnight and concentrated to dryness under reduced pressure. The residue was dissolved in 50 ml of water and 50 ml of dichloromethane and, after shaking, the dichloromethane layer was separated. The organic layer was concentrated to dryness under reduced pressure and the residue was purified by silica gel (50 g) column chromatography using n-hexaneethyl acetate (193:7) as an eluent to give 5.3 g (83.9%) of colorless needles.

Provenance & Evidence