(International Journal of Innovative Science and Research Technology, 2023) Navale, Dinesh; Ranade, Prasanna; Zote, Santosh; Kulal, Dnyaneshwar; Wagh, Swapnil
An efficient and eco-friendly synthetic method has been established for synthesis of 7-hydroxy-4-methyl coumarin and its derivatives using tamarind juice as a biocatalyst. The condensation reaction of Substituted phenol with ethyl acetoacetate (EAA) successfully carried out using tamarind juice as a green and efficient catalyst at 90°C in aqueous condition. This green biocatalyst has been utilised effectively for pechmann reaction with good yield of product, easy workup and eco-friendly reaction conditions.