77995-06-3Relevant articles and documents
Efficient aerobic oxidative dehydrogenation of dihydropyrimidinones and dihydropyrimidines
Han, Bing,Han, Run-Feng,Ren, Yu-Wei,Duan, Xiao-Yong,Xu, Yi-Chuan,Zhang, Wei
supporting information; experimental part, p. 5615 - 5620 (2011/08/09)
4-Substituted dihydropyrimidinones and dihydropyrimidines were first efficient aerobic oxidized to the corresponding pyrimidinones and pyrimidines, respectively, in high yields by molecular oxygen in the presence of catalytic amount of N-hydroxyphthalimid
Oxidative dehydrogenation of dihydropyrimidinones and dihydropyrimidines
Yamamoto, Kana,Chen, Ye Grace,Buono, Frederic G.
, p. 4673 - 4676 (2007/10/03)
(Chemical Equation Presented) A mild, practical procedure for oxidative dehydrogenation with catalytic amounts of a Cu salt, K2CO 3, and tert-butylhydroperoxide (TBHP) as a terminal oxidant has been developed. This oxidation procedure is generally applicable to dihydropyrimidinones and most dihydropyrimidines.
An Improved General Synthesis of 4-Aryl-5-pyrimidinecarboxylates
Breaux, Eves J.,Zwikelmaier, Kurt E.
, p. 183 - 184 (2007/10/02)
We wish to report an improved, general synthesis of 4-aryl-5-pyrimidinecarboxylates 1.Two different routes have previously been reported for the synthesis of examples of this class of pyrimidine carboxylates.The parent compound, ethyl 4-phenyl-5-pyrimidinecarboxylate was prepared in low yield by the reaction of s-triazine with ethyl benzoyl acetate.In addition, the enol ether β-ketoaldehyde synthon, ethyl 2-benzoyl-3-ethoxy-2-propenoate, was reported to give 1a in modest yield when reacted with guanidine (2).