چكيده به لاتين
Today, green chemistry deals with healthy chemical reactions with safe products and maximum benefits (minimum consumption of matter and energy), Multi-component reactions and nanocatalysts can lead us to this goal. Multi-component reactions (MCRs), due to their unique properties, have been attractive to many chemists, and they have a special place in organic chemistry and medicine. Synthesis of compromising compromising compounds with a wide range of biological properties is an important part of synthetic studies. Coumarins are among the most important heterocyclic compounds in chemistry, due to the effects of drugs that have been reported so far, including anti-tumor, anti-viral, antioxidant, anti-allergic, antimicrobial, and the like. Another application of coumarins can be used in the perfume industry, as a color in laser technology and as fluorescence detectors. Regarding the properties of nano-catalysts, zinc oxide modified magnesium oxide graphene was used as a catalyst for the synthesis of coumarin derivatives. The using of nanoparticles of zinc oxide decorated superparamagnetic graphene oxide as a reusable catalyst, and A practical and highly efficiently recover the reaction, which is a catalyst of a reaction mixture without the need for a smooth process, a high temperature centrifuge, and a costly external magnet. makes it possible. In addition, the remarkable magnetic properties of the nanocomposite make it easy to separate the catalyst from the reaction mixture without significantly reducing the catalytic properties of the nanocomposite.
