反应详情

5-Bromo-2-(phenethyl)benzaldehyde (1.27 g) and methyl 4-aminobenzoate (0.66 g) were heated together at 110° C. for 30 minutes and for a further 30 minutes under vacuum. The mixture was dissolved in toluene, evaporated to dryness, dissolved in ethanol (15 ml). Sodium borohydride (0.33 g) was added, the mixture stirred for 18 hours, the solvent evaporated and the residue mixed with acetic acid and partitioned between saturated aqueous sodium hydrogen carbonate and ethyl acetate. The organic layer was washed with brine, dried (MgSO4), filtered and evaporated. The resulting residue was purified by MPLC, eluting with dichloromethane, to give methyl 4-[N-(5-bromo-2-(phenethyl)benzyl)amino]benzoate (1.65 g).

1. customevaporated to dryness
2. dissolutiondissolved in ethanol (15 ml)
3. additionSodium borohydride (0.33 g) was added
4. customthe solvent evaporated
5. additionthe residue mixed with acetic acid
6. custompartitioned between saturated aqueous sodium hydrogen carbonate and ethyl acetate
7. washThe organic layer was washed with brine
8. dry with materialdried (MgSO4)
9. filtrationfiltered
10. customevaporated
11. customThe resulting residue was purified by MPLC
12. washeluting with dichloromethane