Abstract
The reaction of 5-(arylmethylidene)-2,4,6-pyrimidine-2,4,6(1H,3H,5H)-triones with morpholine in the presence of hydrogen peroxide and catalytic amounts of sodium tungstate leads to the synthesis of 2-aryltetrahydro-1'H,2H-spiro(isoxazole[3,2-c][1,4]oxazine-3,5'-pyrimidine)-2',4',6'(3'H)-triones.
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Tyrkov, A.G. Reaction of 5-(Arylmethylidene)-2,4,6-pyrimidine2,4,6(1H,3H,5H)-triones with Morpholine N-Oxide. Russ J Org Chem 56, 939–941 (2020). https://doi.org/10.1134/S1070428020050309
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DOI: https://doi.org/10.1134/S1070428020050309