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- W2386917820 abstract "Synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by amino acetic acid under solvent-free conditions was studied.Effects of reaction time,mole fraction of the catalyst,mole ratio of the reactants and reaction temperature on the yield of 3,4-dihydropyrimidin-2(1H)-ones were investigated.Some other experiments with several different aldehydes as reactants were also carried out to study the effect on the product yield.The results show that the yield of 3,4-dihydropyrimidin-2(1H)-one can reach 80% under the reaction conditions that mole ratio of benzaldehyde,acetoacetic ester and urea is 1∶1∶1.5,mole ratio of the catalyst and benzaldehyde is 0.05∶1,reaction temperature is 90 ℃ in water-bath and the reactants are stirred continuously for 3 h." @default.
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- W2386917820 date "2007-01-01" @default.
- W2386917820 modified "2023-09-23" @default.
- W2386917820 title "One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-Ones Catalyzed by Amino Acetic Acid" @default.
- W2386917820 hasPublicationYear "2007" @default.
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