Q.How will you illustrate the use of safer solvent and auxiliaries?

This principle asks chemists to choose the safest solvent available for each step of a reaction and to minimise the total amount of solvents and auxiliary substances used, since solvents typically make up a large share of a chemical process's total waste. Toxic solvents affect millions of workers every year and carry consequences for consumers and the environment; because many solvents are used in high volumes and many are volatile organic compounds, their use generates large amounts of waste and air pollution. The chapter's central illustration replaces volatile halogenated organic solvents such as dichloromethane (CH2Cl2), chloroform (CHCl3) and carbon tetrachloride (CCl4) -- all hazardous -- with green …