4-Amino-2,6-dichlorophenol → HCID 5328858, compound

Participants

Reaction Steps

A reaction mixture of 248.7 mg (1 mmol) of 4-chloro-6,7-dimethoxy-3-quinolinecarbonitrile, 213.6 mg (1.2 mmol) of 4-amino-2,6-dichlorophenol and 115.6 mg (1 mmol) of pyridine hydrochloride in 10 mL of 2-ethoxyethanol was refluxed under N2 for 1 hr. After removal of the solvent, the residue was diluted with water and neutralized to pH 7-8 with diluted sodium carbonate solution. The precipitate was filtered and washed with water and ether/ ethyl acetate (1:1). After drying in vacuo this yielded 346.7 mg (88.8%) of the product as a yellow solid, m.p.>250° C., mass (electrospray, m/e): M+H 389.8, 391.8.

Provenance & Evidence