Triethylamine → HCID 66891597, compound

Participants

Reaction Steps

To a stirred solution of methyl 2-chloro-3-nitrobenzoate (1.1 g, 4.9 mmol) from Step A above in THF (33 mL) was added triethylamine (0.8 mL, 6.0 mmol) followed by 2,2-dimethoxyethanamine (0.7 mL, 6.0 mmol) at room temperature. The reaction mixture was stirred overnight at reflux. The suspension was concentrated under reduced pressure and purified by column chromatography (silica gel, 0% to 10% ethyl acetate in hexanes) to afford methyl 2-(2,2-dimethoxyethylamino)-3-nitrobenzoate (1.4 g, 98%): 1H NMR (500 MHz, DMSO-d6) δ 8.39 (t, J=4.5 Hz, 8.08-8.05 (m, 2H), 6.83 (t, J=8.0 Hz, 1H), 4.54 (t, J=5.0 Hz, 1H), 3.87 (s, 3H), 3.31 (s, 6H), 2.93 (t, J=5.0 Hz, 1H).

Provenance & Evidence