Tiwari, R.Rahman, A.Bhat, N.S.Onkarappa, S.B.Mal, S.S.Dutta, Saikat2020-03-312020-03-312019ChemistrySelect, 2019, Vol.4, 31, pp.9119-9123https://idr.nitk.ac.in/jspui/handle/123456789/10935This study reports a high-yielding, solvent-free, and scalable synthesis of alkyl benzoates from benzoic acid and its derivatives using heteropolyacids (HPA) as efficient and recyclable acid catalysts. The alkyl benzoates were obtained in excellent isolated yields (>85%) within 4 h at 120 C using 1.5 equivalent of the alcohol reagent and only 0.4 mol% of the phosphotungstic acid (PTA) catalyst. The PTA catalyst was conveniently recovered and reused for three consecutive cycles without significant loss in mass or activity. 2019 Wiley-VCH Verlag GmbH & Co. KGaA, WeinheimArticle