反应详情

The reaction was carried out under argon. (rac)-4-[4-Cyano-2-(ethylsulfonyl)phenyl]-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxamide (1000 mg, 2.03 mmol) was initially charged in dry THF (50 ml), methoxycarbonylsulfamoyltriethylammonium hydroxide (Burgess reagent; 726 mg, 3.046 mmol) was added and the mixture was stirred at RT. After 75 min, HPLC control showed complete conversion. Water (20 ml) was then added, the reaction mixture was concentrated and the residue was taken up in ethyl acetate (200 ml).

1. concentrationthe reaction mixture was concentrated