Conclusions
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1.
In the reaction of dichloro- and dibromomalonic dinitriles with organic azides under high pressure, halogen derivatives of 5-cyanomethyltetrazoles and methylene-bis-5,5-tetrazoles are formed in good yields.
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2.
The reduction of the halogen derivatives of 5-cyanomethyltetrazoles and bis-tetrazolylmethanes with sodium borohydride leads to the corresponding 5-cyanomethyl- and methylene-bis-5,5-tetrazoles.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2764–2767, December, 1981.
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Krayushkin, M.M., Yarovenko, V.N., Luk'yanov, O.A. et al. Synthesis of tetrazoles from halogen derivatives of malononitrile and organic azides under high-pressure conditions. Russ Chem Bull 30, 2301–2304 (1981). https://doi.org/10.1007/BF00963693
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DOI: https://doi.org/10.1007/BF00963693