Promoter catalytic application of {Fe3O4@SiO2@(CH2)3-Urea-SO3H/HCl} at the synthesis of 2’-aminobenzothiazolomethyl naphthols

Solid acid catalytic systems have been employed for various chemical processes because of their eco-friendly nature of them and play a key role in preventing pollution in our environment and in past few years, a wide range of solid acids and their supported forms have been developed and extensively reviewed for various chemical catalytic processes [1]. 2‘- Aminobenzothiazolomethyl naphthol derivatives are renowned as they show wide variety of biological and pharmaceutical applications in medical chemistry [2, 3]. In this study, we have introduced an efficient procedure for the synthesis of these interesting heterocyclic scaffold in in the presence of{Fe3O4@SiO2@(CH2)3-Urea-SO3H/HCl} as a urea-based ionic liquid stabilized on silica-coated Fe3O4 magnetic nanoparticles catalyst under solvent free and benign reaction conditions as depicted in Figure 1.