3-Chloroaniline → HCID 11454551, compound

Participants

Reaction Steps

A slurry of 7-(6,7-dimethoxyquinolin-4-yloxy)-2-naphthoic acid (0.54 g, 1.44 mmol) in 10 mL of C2O2Cl2 and 2 drops of DMF was stirred at RT. After 2 h, the solution was concentrated to dryness and placed under high vacuum overnight. A portion of the crude residue (0.075 g, 0.191 mmol) was dissolved in 1 mL of CH2Cl2. To the resulting solution was added DIPEA (0.133 mL, 0.764 mmol), 3-chloroaniline (0.024 mL, 0.229 mmol) and a catalytic amount of DMAP. The reaction was stirred under a N2 atmosphere for 16 h. The reaction was diluted with EtOAc, and washed with saturated aqueous NaHCO3. The organic layer was dried (MgSO4), filtered and concentrated. The residue was passed through a medium-pressure silica gel column (solvent gradient: 95:5 CH2Cl2:MeOH; 90:10 CH2Cl2:MeOH) to afford the desired crude compound. The fractions were concentrated to dryness to afford a solid residue. The residue was triturated with Et2O/Hexanes to afford the desired compound as a pale yellow solid. MS (ESI, pos. ion) m/z: 485.0 (M+1). Mass Calc'd for C28H21ClN2O4: 484.937.

Provenance & Evidence