Microwave chemistry is generally aligned with many principles of green chemistry, particularly in terms of energy efficiency and reducing reaction times. However, the principle that does NOT align as strongly with microwave chemistry is:
Safer chemicals and products.
While microwave chemistry itself can promote safer reaction conditions and more efficient use of resources, the specific safety of the chemicals and products used or produced is not inherently guaranteed by the method of microwave irradiation. The safety of the chemicals still depends on the specific reactants and products involved, rather than the microwave method itself.