Dimethylamine, hydrochloride → HCID 70497166, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-(3-bromo-phenyl)-6-chloro-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid methyl ester (0.82 g, 1.0 mmol), dimethyl amine hydrochloride (0.65 g, 8 mmol), copper (I) iodide (230 mg, 1.2 mmol), N,N-dimethyl glycine hydrochloride (220 mg, 1.6 mmol) and potassium carbonate (0.83 g, 6 mmol) in dimethylsulfoxide (20 mL) was heated for 12 h at 120° C. After colling to room temperature, the mixture was treated with ethyl acetate (50 mL) and washed with water (20 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated in vacuo. Purification on flash silica gel chromatography (silica gel from QingDao, 200-300 mesh, glass column from Shanghai SD company) (30% ethyl acetate/hexanes) to afford 6-chloro-2-(3-dimethylamino-phenyl)-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid (0.37 g, 51%) as a white solid: MS (ESI) M+1=359.2.

Provenance & Evidence