Pyridine → HCID 67442010, compound

Participants

Reaction Steps

To a stirred solution of methyl 2-(2-aminophenyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoline-6-carboxylate (1.0 g, 3.22 mmol, 1.0 eq.) in pyridine (5 mL, 0.0644 mL, 20.0 eq.) and dichloro methane (20 mL) at 0 C was added dropwise a solution of methanesulfonyl chloride in dichloromethane (30 mL). The mixture was stirred at room temperature for 4 h. Thin layer chromatography and LC-MS showed the reaction was complete. The mixture was quenched with 50 mL water and extracted with ethyl acetate (100 mL×2). The combined organic layers were dried over anhydrous sodium sulfate and evaporated to afford 1.475 g of methyl 3,3-dimethyl-2-(2-(methylsulfonamido)phenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylate (pyridine included) as light yellow solid, which was used in next step without further purification.

Provenance & Evidence