Synthesis Involving Basic Principles of Green Chemistry: Some examples

Abstract

Since the beginning of the twenty-first century it was considered of paramount importance to reduce the impact on the environment caused basically by pollutants (including waste products) generated by the chemical industries. Thus there was urgent need to develop environmentally benign or green synthesis. We already know that a number of ways are available to reduce the impact on the environment of a large scale process. These include carrying out reactions in safer aqueous systems instead of hazardous organic solvents. The reactions, as far as possible, should be carried out at ambient temperature instead of using heat energy. If possible, the materials should be recycled. The pathways for synthesis be selected so as to avoid the generation of toxic materials. All these may reduce the impact of the process on the environment in terms of pollution or consumption of resources.