A Practical Synthesis of 3‐Functionalized Coumarins from o‐Cresols and Active Methylene Compounds under Metal and Catalyst‐Free Conditions Using tert‐Butyl Hydrogen Peroxide. - Chauhan, Swati; Verma, Pratibha; Kandasamy, Jeyakumar; Srivastava, Vandana (ChemistrySelect, 2020)