Cholesterol → HCID 69177522, compound

Participants

Reaction Steps

To a solution of cholesterol (2.0 g, 5.17 mM) in methylene chloride (20 mL) was added 5-hexenoic acid (0.68 mL, 5.69 mM) followed by the addition of DCC (1.60 g, 7.76 mM) and 4-PP (0.115 g, 0.78 mM) under nitrogen atmosphere. The resulting reaction mixture was stirred at ambient temperature for 1 h and worked up with the addition of methyl t-butyl ether (60 mL). The urea was filtered off, and the product was transferred to a separatory funnel, washed with 1N HCl (10 mL), water (30 mL) and brine (30 mL). The product was filtered after drying over MgSO4 and the solvent was evaporated to leave a residue. The product obtained in >95% yield was characterized by 1H NMR.

Provenance & Evidence