Fe3O4/SiO2 nanoparticles: an efficient and magnetically recoverable nanocatalyst for the one-pot multicomponent synthesis of diazepines
作者:Ali Maleki
DOI:10.1016/j.tet.2012.07.034
日期:2012.9
In this research, a new protocol for the one-pot multicomponent synthesis of diazepine derivatives using a 1,2-diamine, a linear or cyclic ketone, and an isocyanide in the presence of a catalytic amount of silica-supported iron oxide (Fe3O4/SiO2) nanoparticles at ambient temperature in excellent yields is described.
present paper, we report l-ascorbic acid (vitamin C) as an efficient and robust catalyst for the straightforward synthesis of various organic compounds, including carboxamide, benzodiazepine and benzoxazepine derivatives. These compounds with potential drug value which exhibit a broad spectrum biological and pharmacological activities were successfully accessed with vitamin C catalytic system under environmentally