Methyl Trifluoropyruvate in Cyclocondensation Reactions with N-Substituted Ureas

摘要

The transformations of methyl trifluoropyruvate in cyclocondensation reactions with N-substituted ureas, leading to 3-substituted 5-hydroxy- or 5-methoxy-5-trifluoromethylimidazolidine-2,4-diones, were studied. The possibility of using 5-hydroxy-3-(prop-2-in-1-yl)-5-trifluoromethylimidazolidine-2,4-dione for modifying phenothiazine with a copper-catalyzed alkyne-azide 1,3-dipolar cycloaddition was shown.