Triethylamine → 2-Amino-N-[(4-methoxyphenyl)methyl]-3-pyridinecarboxamide

Participants

Reaction Steps

2-Aminonicotinic acid (7.15 g) was suspended in N,N-dimethylformamide (100 ml) and 4-methoxybenzylamine (8.12 ml), diethyl cyanophosphonate (9.92 ml) and triethylamine (8.66 ml) were added sequentially with stirring and cooling on ice. The reaction mixture was stirred at room temperature for 15.5 hours, concentrated under reduced pressure, and extracted with ethyl acetate. The extract was washed with water, dried (Na2SO4) and then the solvent was distilled off under reduced pressure to give the title compound (15.9 g, about 100%). Recrystallization from ethyl acetate-ethyl ether yielded a colorless crystal, melting point 165 to 166° C.

Provenance & Evidence