5948-71-0

4-(4-Chloro-phenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid ethyl ester can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in Laboratory research and development process and chemical production process.

Substituted benzaldehyde (6.617×10-3mmol; 1.0 equiv.) is mixed with slightly excess equivalent of urea (6.749×10-3mmol; 1.02 equiv.) and ethyl acetoacetate (6.749×10-3mmol; 1.02 equiv.) in the presence of catalytic concentration 1.0×10-4mmol of our synthesized dimeric pyridinium salts along with dry MeCN at ambient reaction condition from 6-33 min. reaction condition. Yield: 92%

[1] Journal of the Iranian Chemical Society, 2017, vol. 14, # 1, p. 75 - 87
[2] Phosphorus, Sulfur and Silicon and the Related Elements, 2010, vol. 185, # 2, p. 325 - 329
[3] Heteroatom Chemistry, 2007, vol. 18, # 6, p. 684 - 687