反应详情

温度

120 °C

To a solution of 4,4,4-trifluoro-1-(5-methylsulfanyl-pyridin-2-yl)-butane-1,3-dione (0.600 g, 2.28 mmol) in glacial acetic acid (6 mL) was added 2-methyl 2-thiopseudourea sulphate (0.761 g, 2.74 mmol) and sodium acetate (0.224 g, 2.74 mmol). The reaction was heated to 120° C. under nitrogen for 21 hours. The reaction was allowed to cool before the addition of water (10 mL), leading to precipitation of a solid. The reaction mixture was poured onto water (10 mL) and stirred for 15 minutes at 22° C. The precipitate was filtered from the aqueous solution, washed with water, and dried in vacuo to yield the title compound as a grey solid: MS m/z 317 (M+1).

1. customleading to precipitation of a solid
2. additionThe reaction mixture was poured onto water (10 mL)
3. filtrationThe precipitate was filtered from the aqueous solution
4. washwashed with water
5. customdried in vacuo