Green chemistry approaches to the synthesis of coumarin derivatives

Coumarin derivatives (coumarins) are a class of compounds with a wide range of biological activities, which have found their application in medicine, pharmacology, cosmetics and food industry. Therefore, many researchers have been performing the synthesis of coumarin derivatives on a daily basis. Green chemistry methods include the use of ultrasound and microwaves, ionic liquids and deep eutectic solvents, solvent-free synthesis, mechanosynthesis and multicomponent reactions.