+++Chemistry of Heterocyclic Compounds (Springer)

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Synthesis of 1-substituted tetrazoles by heterocyclization of primary amines, orthoformic ester, and sodium azide
P. N. Gaponik, V. P. Karavai and Yu. V. Grigor'ev
Chemistry of Heterocyclic Compounds
Volume 21, Number 11, 1985 pp.1255-1258

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http://dx.doi.org/10.1007/BF00515224

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