Water → Ethyl 6-chloro-4-(propylamino)nicotinate

Participants

Reaction Steps

To a solution of ethyl 4,6-dichloronicotinate (S13, 1.0 g) synthesized according to the method described in US200549419 A1 and N,N-diisopropylethylamine (2.37 mL) in acetonitrile (10 mL), propylamine (0.90 mL) was added under ice cooling, and the mixture was stirred at the same temperature for 30 minutes, and then stirred at room temperature for 5 hours and 30 minutes. To the reaction mixture, water and ethyl acetate were added. The organic layer was separated, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent, 90% hexane/10% ethyl acetate) to obtain ethyl 6-chloro-4-(propylamino)nicotinate (S14, 1.1 g).

Provenance & Evidence