Why are reactions with high atom economy considered 'greener'?

Reactions with high atom economy are considered 'greener' because they create less waste and utilize resources more efficiently. High atom economy indicates that a greater proportion of the reactants in a chemical reaction are converted into useful products, rather than being lost as by-products. This efficient use of raw materials minimizes waste generation, which is a fundamental principle of green chemistry aimed at reducing environmental impact.

When a reaction has high atom economy, it means that fewer resources are consumed and that the process is more sustainable. This approach not only conserves materials but also reduces the energy and resources needed for waste disposal or treatment. Therefore, reactions that achieve high atom economy align well with the goals of sustainable chemistry practices.