Application of Acidic [BTEAC][OX.2H2O] Deep Eutectic Solvent/Catalyst; Green Solvent for Synthesis of Hydrazone Schiff Bases From 2-acetyl-1-naphthol

Considering enormous applications of hydrazone schiff bases in various fields, a series of 1-(1-hydroxynaphthalen-2-yl)ethanone-substituted-benzoylhydrazone (H2L1-H2L4) schiff bases were synthesized using green, environmentally benign acidic benzyltriethylammoniumchloride [BTEAC] deep eutectic solvents. From the study of optimized reaction conditions, [BTEAC][oxalic acid.2H2O] DES gives excellent reaction yield within reduced time. Catalytic property of DES was further compared with conventional reflux method; obviously [BTEAC][oxalic acid.2H2O] DES proves to be good solvent as well as catalyst along with possessing recoverable and reuse capability.