Diisopropylethylamine → HCID 67442263, compound

Participants

Reaction Steps

To an ice-cold mixture of methyl 2-(2-aminophenyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoline-6-carboxylate (60 mg, 0.19 mmol, 1.0 eq.) and N,N-diisopropylethylamine (50 mg, 0.38 mmol, 2.0 eq.) in 4 mL of dichloromethane was added dropwise a solution of picolinoyl chloride (40 mg, 0.29 mmol, 1.5 eq.) in dichloromethane (1 mL). Then the resultant mixture was stirred at room temperature for 30 min. Thin layer chromatography and LC-MS indicated that the starting material was consumed completely. The solvent was removed under reduced pressure and the residue was purified by column chromatography on silica gel (petroleum ether/ethyl acetate=2:1) to afford 44 mg of methyl 3,3-dimethyl-2-(2-(picolinamido)phenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylate as a gray solid; yield: 60%. MS (ESI+APCI) M+1=416.2.

Provenance & Evidence