Functionalized hybrid magnetic catalytic systems on micro- and nanoscale utilized in organic synthesis and degradation of dyes

Herein, a concise review of the latest developments in catalytic processes involving organic reactions is presented, focusing on magnetic catalytic systems (MCSs). In recent years, various micro- and nanoscale magnetic catalysts have been prepared through different methods based on optimized reaction conditions and utilized in complex organic synthesis or degradation reactions of pharmaceutical compounds. These biodegradable, biocompatible and eco-benign MCSs have achieved the principles of green chemistry, and thus their usage is highly advocated. In addition, MCSs can shorten the reaction time, effectively accelerate reactions, and significantly upgrade both pharmaceutical synthesis and degradation mechanisms by preventing unwanted side reactions. Moreover, the other significant benefits of MCSs include their convenient magnetic separation, high stability and reusability, inexpensive raw materials, facile preparation routes, and surface functionalization. In this review, our aim is to present at the recent improvements in the structure of versatile MCSs and their characteristics, i.e., magnetization, recyclability, structural stability, turnover number (TON), and turnover frequency (TOF). Concisely, different hybrid and multifunctional MCSs are discussed. Additionally, the applications of MCSs for the synthesis of different pharmaceutical ingredients and degradation of organic wastewater contaminants such as toxic dyes and drugs are demonstrated.

Automated summary

In this concise review, the latest developments in catalytic processes involving organic reactions, particularly focusing on magnetic catalytic systems (MCSs), are presented. The biodegradable, biocompatible, and eco-benign characteristics of MCSs have achieved the principles of green chemistry, making them highly advocated for usage. Moreover, MCSs offer advantages such as shortened reaction time, accelerated reactions, prevention of unwanted side reactions, convenient magnetic separation, high stability and reusability, inexpensive raw materials, facile preparation routes, and surface functionalization. The recent improvements in the structure of versatile MCSs and their characteristics, as well as their applications in pharmaceutical synthesis and degradation of organic wastewater contaminants, are discussed.