835925-31-0Relevant articles and documents
Two directions of the reaction of 4-bromobenzaldehyde with substituted acetophenones and urea. Synthesis of aryl-substituted pyrimidin-2-one and hexahydropyrimido[4,5-d]pyrimidin-2,7-dione
Sedova,Shkurko
, p. 194 - 202 (2004)
Condensation of 4-bromobenzaldehyde, urea, and 4-alkyl-substituted acetophenones gave substituted hexahydro-1H,8H-pyrimido[4,5-d]pyrimidin-2,7- diones or 1H-pyrimidin-2-ones, depending on the substituent on the acetophenone ring and the nature of the solvent (i-PrOH, BuOH, AcOH). The corresponding 5-bromopyrimidin-2-ones were formed on bromination of these compounds. The structures of these compounds were confirmed by IR, UV, and 1H NMR spectroscopy.