Potassium Carbonate → 1-[(5-Amino-2,3-dihydro-2,4,6,7-tetramethylbenzofuran-2-yl)-methyl]-N-[bis(4-fluorophenyl)methyl]-4-piperidinamine

Participants

Reaction Conditions

Reaction Steps

Under argon gas, a suspension of 2-bromomethyl-2,3-dihydro-2,4,6,7-tetramethyl-5-benzofuranamine (1.4 g), N-[bis(4-fluorophenyl)methyl]-4-piperidinamine (4.5 g), and potassium carbonate (1.4 g) in N,N-dimethylacetamide (20 mL) was stirred at 172° C. for 4.5 hours. This reaction mixture was diluted with water and extracted with ethyl acetate. The extract was washed with water and saturated aqueous sodium chloride solution, dried over MgSO4, and concentrated under reduced pressure. The residue was purified by column chromatograph (silica gel/ethyl acetate and basic silica gel/hexane:ethyl acetate=9:1-85:15) and recrystallized from ethyl acetate-hexane to provide the title compound (0.97 g, yield 39%).

Provenance & Evidence