反应详情

A mixture of methyl 3-(5-fluoro-2-nitrophenyl)-tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate (0.51 g, 1.4 mmol), 2,4-dichloro-3-methylphenol (0.33 g, 1.9 mmol) and potassium carbonate (0.28 g, 2.0 mmol) in N,N-dimethylformamide is stirred overnight at room temperature and poured into water. The aqueous mixture is extracted with ethyl acetate. The organic extracts are combined, washed sequentially with water, 1M sodium hydroxide solution, water and brine, dried over anhydrous magnesium sulfate and concentrated in vacuo to obtain a yellow solid. The solid is slurried with an ether/hexanes (1:1) solution, filtered and dried in vacuo to give the title product as a yellow solid, mp 199.9°-202° C.

1. extractionThe aqueous mixture is extracted with ethyl acetate
2. washwashed sequentially with water, 1M sodium hydroxide solution, water and brine
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated in vacuo
5. customto obtain a yellow solid
6. filtrationfiltered
7. customdried in vacuo