Activated Carbon-Promoted Oxidative Aromatization of Hantzsch 1,4-Dihydropyridines and 1,3,5-Trisubstituted Pyrazolines Using Molecular Oxygen
作者:Masahiko Hayashi、Natsuki Nakamichi、Yuka Kawashita
DOI:10.1055/s-2004-822343
日期:——
In the presence of activated carbon, Hantzsch 1,4-dihydropyridines and 1,3,5-trisubstituted pyrazolines were aromatized with molecular oxygen to the corresponding pyridines and pyrazoles in excellent yields.
在活性炭的存在下,Hantzsch 1,4-二氢吡啶和 1,3,5-三取代的吡唑啉被分子氧芳构化为相应的吡啶和吡唑,产率很高。