反应详情

To a mixture of 4 g of 5-(n-heptyloxy)-pyrrolidin-2-one, 1.68 g of potassium hydroxide hydrated to 85% and 0.4 g of tetra-n-butylammonium bromide in 55 cm3 of tetrahydrofuran, there is added a solution of 3.43 g of benzyl bromide in 20 cm3 of tetrahydrofuran, operating at 20° C. to 25° C. After agitating for 1 hour at ambient temperature, filtering, and evaporating the solvent to dryness under reduced pressure, the residue is chromatographed on silica (eluent: ethyl acetate--n-hexane, 1-2), and 4.54 g of the expected product is obtained.

1. customoperating at 20° C. to 25° C
2. filtrationfiltering
3. customevaporating the solvent to dryness under reduced pressure
4. customthe residue is chromatographed on silica (eluent: ethyl acetate--n-hexane, 1-2)