Derivatives of 2-amino- and 2-methylthiazole have been synthesized by the reaction of 5-(2-aryl-2-oxoethylidene)-1,3-dimethylbarbituric and thiobarbituric acids with thioureas and thioacetamide, and also by a one-pot synthesis involving thiourea (or thioacetamide), arylglyoxals, 1,3-dimethyl-barbituric (or thiobarbituric) acids. The mechanisms of the studied reactions are discussed.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1220–1226, August, 2009.
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Kolos, N.N., Zamigaylo, L.L. & Musatov, V.I. Investigations on 5-(2-aryl-2-oxo-ethylidene)-1,3-dimethylbarbituric and thiobarbituric acids: reactions with thioureas and thioacetamide. Chem Heterocycl Comp 45, 970–975 (2009). https://doi.org/10.1007/s10593-009-0365-9
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DOI: https://doi.org/10.1007/s10593-009-0365-9
Keywords
- 5-(2-amino-4-arylthiazol-5-yl)-6-hydroxy-2-thioxo-2,3-dihydropyrimidin-4(1H)-ones
- 5-(2-amino-4-arylthiazol-5-yl)-1,3-dimethylpyrimidine-2,4-diones
- 5-(2-aryl-2-oxoethylidene)-1,3-dimethyl-barbituric and 5-(2-aryl-2-oxoethylidene)thiobarbituric acids
- thioacetamide
- thioureas
- one-pot synthesis
- cyclocondensation