反应详情

温度

60 °C

1.2 g (17.8 mmol) sodium ethylate was added to a solution of 5.1 g (16.1 mmol) 2-chloro-4-methyl-7-(trifluoromethyl)quinoline-3-carboxylic acid ethyl ester in EtOH (20 ml) at RT. The RS was subsequently heated to 60° C. for 4 h and then stirred for 16 h at RT. The solution was then diluted with water and EtOAc. The organic phase was separated and washed with a 4N aq. NH4Cl sol., dried over MgSO4 and concentrated in a vacuum. 5.1 g (15.6 mmol, 97%) 2-ethoxy-4-methyl-7-(trifluoromethyl)quinoline-3-carboxylic acid ethyl ester was obtained as a residue. The raw product was further converted without additional purification.

1. customThe organic phase was separated
2. washwashed with a 4N aq. NH4Cl sol.
3. dry with materialdried over MgSO4
4. concentrationconcentrated in a vacuum