Synthesis and class III type antiarrhythmic activity of 4-aroyl (and aryl)-1-aralkylpiperazines
作者:Ramesh M. Kanojia、Joseph J. Salata、Jack Kauffman
DOI:10.1016/s0960-894x(00)00581-3
日期:2000.12
The synthesis and in vitro Class III antiarrhythmic activity of several 4-aroyl (and aryl)-1-aralkylpiperazine and piperidinederivatives are described. Among several potent compounds identified in the series, RWJ-28810 (3), with its EC20 of 3 nM, ranks as one of the most potent (in vitro) compounds reported.
Oxidative amidation of benzaldehyde using a quinone/DMSO system as the oxidizing agent
作者:Itzel Mejía-Farfán、Manuel Solís-Hernández、Pedro Navarro-Santos、Claudia A. Contreras-Celedón、Carlos Jesus Cortés-García、Luis Chacón-García
DOI:10.1039/c9ra02893e
日期:——
efficient transition-metal-based heterogeneous catalyst free procedure for obtaining the oxidative amidation of benzaldehyde using quinones as oxidizing agents in low molar proportions is described here. Pyrrolylquinones (PQ) proved to be more suitable than DDQ and 2,5-dimethylbenzoquinone to conduct the oxidation process. Although the solvent itself acted as the oxidant with low to moderate yields,