Efficient aerobic oxidative dehydrogenation of dihydropyrimidinones and dihydropyrimidines
摘要:
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-hydroxyphthalimide (NHPI) and Co(OAc)(2) in a mild and environmental benign condition. (C) 2011 Elsevier Ltd. All rights reserved.
Elemental steps of the thermodynamics of dihydropyrimidine: a new class of organic hydride donors
作者:Fan-kun Meng、Xiao-qing Zhu
DOI:10.1039/c6ob02195f
日期:——
25 Dihydropyrimidine derivatives, a newclass of organo-hydrides, were designed and synthesized by the Biginelli reaction. For the first time, the thermodynamic driving forces of the six elemental steps to obtain a hydride in acetonitrile were determined by isothermal titration and electrochemical methods, respectively. The effects of molecular structures and substituents on these thermodynamic parameters