Triethylamine → HCID 59580613, compound

Participants

Reaction Steps

To a solution of [(2-chloro-5-fluoropyridine-3-carbonyl)-amino]-acetic acid methyl ester (4.65 g, 18.9 mmol) in methanol (200 mL) in a Parr vessel was added Et3N (3.15 mL, 22.6 mmol) and palladium hydroxide on carbon (1.5 g, 20 wt % Pd, moisture 60%). The vessel was evacuated and then put under an atmosphere of hydrogen (initial pressure 42 psi). After 5 min the hydrogen pressure was 14 psi. The catalyst was removed via suction filtration over Celite® and then the filtrate was concentrated. Purification by silica gel chromatography (0 to 100% ethyl acetate/hexanes) afforded a light yellow solid (3.83 g, 95%): mp 80-82° C.; 1H NMR (300 MHz, CDCl3) δ 8.84 (s, 1H), 8.62 (d, J=2.7 Hz, 1H), 7.87 (m, 1H), 7.00 (br s, 1H), 4.27 (d, J=5.3 Hz, 2H), 3.82 (s, 3H); ESIMS m/z 213 (M+1).

Provenance & Evidence