1,3-Propanediol → HCID 10951079, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 21 mg (5.1×10-5 mol) of 3β,25-dihydroxy-1α,2α-epoxy-5,7-cholestadiene, 294 μl (4.1×10-3 mol) of 1,3-propanediol, 19 mg (1.5×10-4 mol) of potassium t-butoxide and 4.8 mg (1.3×10-5 mol) of dibenzo-18-Crown-6 was stirred in an argon atmosphere at 110° C. (bath temperature) for 4 hours. The reaction mixture was poured into water, and the resulting mixture was extracted twice with ethyl acetate and washed once with a saturated aqueous sodium chloride solution. After drying the ethyl acetate layer over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure, and the resulting residue was purified by fractional thin layer chromatography (silica gel:dichloromethane:ethanol=100:15) to obtain 18 mg (72% yield) of the titled compound as a white powder.

Provenance & Evidence