SEARCH Articles Figures Tables 2- -3-formyl-4/7pyrido pyrimidin-4-one, reaction 3- pyrimidin-4-one 3-Formyl-2- pyrimidin-4-one reaction with hydroxylamine 3-Formyl-2- pyrimidin-4-one reaction with primary amines 3-Formyl-2- pyrimidin-4-one, effect 3-Formyl-2- pyrimidin-4-one, effect heating 3-Formyl-4//-pyrido pyrimidin-4-ones 4//-Pyrido pyrimidin-4-ones Vilsmeier-Haack formylation Pyrimidine-4 -ones