Ecofriendly synthesis of heterogeneous polyvinyl alcohol immobilized copper (II) Schiff base complex as an efficient, reusable catalyst for one-pot three component green preparation of 5-substituted 1H-tetrazoles under mild conditions

A new heterogeneous and reusable polyvinyl alcohol immobilized copper (II) Schiff base complex (PVA@Cu(II) Schif f base complex) was synthesized in water, characterized and used for highly efficient environmentally benign one-pot three component preparation of 5-substituted 1H-tetrazole derivatives through the click reaction of aliphatic and aromatic aldehydes with hydroxylamine hydrochloride and azide salt as inexpensive and commercially available substrates in water and very short reaction times at room temperature.

5-substituted 1H-tetrazoles, PVA, Copper (II) complex, mild conditions, heterogeneous