反应详情

86 ml (86 mmoles) of 1.0 M sodium bis(trimethylsilyl)amide in tetrahydrofuran was added drop-wise by addition funnel to a solution of 6.03 g (43 mmoles) 4-methyl-2-(methylthio)pyrimidine and 6.46 g (43 mmoles) ethyl benzoate in 86 ml tetrahydrofuran under a nitrogen atmosphere. After 2 hours the reaction was quenched with saturated ammonium chloride solution. Most of the tetrahydrofuran was removed in vacuo. The residue was diluted with 400 ml ethyl acetate and 200 ml water. The organic layer was separated and washed 2×100 ml saturated sodium chloride solution, separated, dried over Na2SO4, filtered, and concentrated in vacuo to give 10.45 g (42.77 mmoles) of 2-[2-(methyl thio)pyrimidin-4-yl]-1-phenyle thanone as a viscous red-brown oil that solidified upon standing. MH+=244.9.

1. customAfter 2 hours the reaction was quenched with saturated ammonium chloride solution
2. customMost of the tetrahydrofuran was removed in vacuo
3. additionThe residue was diluted with 400 ml ethyl acetate and 200 ml water
4. customThe organic layer was separated
5. washwashed 2×100 ml saturated sodium chloride solution
6. customseparated
7. dry with materialdried over Na2SO4
8. filtrationfiltered
9. concentrationconcentrated in vacuo