Green synthesis of the 1-substituted 1H-1,2,3,4-tetrazoles by application of the Natrolite zeolite as a new and reusable heterogeneous catalyst

An efficient method for the preparation of 1-substituted 1H-1,2,3,4-tetrazoles is reported using Natrolite zeolite as a natural and heterogeneous catalyst under solvent-free conditions. This method has the advantages of high yields, simple methodology and easy work-up. The catalyst can be recovered by simple filtration and reused in good yields.