During this study the application of Natrolite zeolite was investigated as a solid acid catalyst for efficient
preparation of 5-substituted 1H-tetrazole derivatives. Excellent yields of products were obtained with a wide range of substrates.
After completion of the reaction, the catalyst was recovered by filtration and reused several times with only a
slight decrease of activity observed under the same reaction conditions.
Keywords: Natrolite zeolite, 5-substituted 1H-tetrazole, natural catalyst, heterogeneous catalyst, nitrile.
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