A Convenient Synthesis of (1H-Azol-1-yl)piperidines
摘要:
A convenient preparation of 3- and 4-(1H-azol-1-yl)piperidines by arylation of azoles (i.e., pyrazoles, imidazoles, and triazoles) with 3- and 4-bromopyridines and subsequent reduction of the pyridine ring was developed. The method was extended to benzo analogues of the title compounds.
One-Step Conversion of Azine <i>N</i>-Oxides to α-1,2,4-Triazolo-, 1,2,3-Triazolo, Imidazolo-, and Pyrazoloheteroarenes
作者:John M. Keith
DOI:10.1021/jo1001017
日期:2010.4.16
Pyridine, quinoline, isoquinoline, azaindole, and pyrimidine N-oxides were converted to their alpha-triazole and alpha-diazole derivatives by treatment with the corresponding p-toluenesulfonylazoles and Hunig's base at elevated temperatures.
Cephalosporin derivatives, process for preparing them and pharmaceutical compositions containing them