Carbon tetrabromide → 1-Bromo-9-octadecene

Beteiligte Stoffe

Reaktionsschritte

This example illustrates a synthesis of 1-(9,10-Oxidoctadecyl)-3,7-dimethylxanthine (inventive compound no. 2541). Triphenylphosphine (5.24 g; 20 mmol) was added in portions to a solution of oleyl alcohol (5.37 g; 20 mmol) and carbontetrabromide (6.63 g; 20 mmol) in 400 mL of dichloromethane and stirred for an hour at room temperature. The solvent was removed under reduced pressure and the residue extracted with hexane (3×200 mL). Further purification was done by flash chromatography over silica gel using hexane as eluant to yield 5.82 g (88% yield) of 1-bromo-9-octadecene.

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