摘要:
Cyclocondensation reactions of methyl trifluoropyruvate N-(pyrimidin-2-yl)imines with N-substituted ureas, N-benzylbenzamidine, 2-aminothiazoline, methyl 3-aminocrotonate, and 6-aminouracils leading to imidazolidine-2,4-diones, 3,5-dihydroimidazol-4-ones, 2,3-dihydroimidazo[2,1-d][1,3]thiazol-5(6H)-one, 4,5-dihydro-1H-pyrroles, and 5,7-dihydro-1H-pyrrolo[2,3-d]pyrimidine-2,4,6-triones have been studied.