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Reduction of 4H-imidazole N-oxides with sodium borohydride

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The reduction of derivatives of 4H-imidazole N-oxides with sodium borohydride leads, depending on the presence and position of an N-oxide group, to 1-hydroxyimidazoline or imidazolidine derivatives. Under the same conditions 4H-imidazole N,N′-dioxides form 1,3-dihydroxyimidazolidines. The reduction of 1-hydroxy-2,4,5,5-tetramethyl-3-imidazoline 3-oxide leads to N-(3-oximino-2-methyl-2-butyl) ethylhydroxylamine. It was observed by UV spectroscopy that 1-hydroxy-2-imidazolines exist in a tautomeric equilibrium with 2-imidazoline 3-oxides.

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Literature cited

  1. L. B. Volodarskii, L. A. Fust, and V. S. Kobrin, Geterotsikl. Soedin., No. 9, 1246 (1972).

    Google Scholar 

  2. V. S. Kobrin, L. B. Volodarskii, L. A. Tikhonova, and Yu. G. Putsykin, Khim. Geterotsikl. Soedin., No. 8, 1087 (1973).

    Google Scholar 

  3. R. Bonnett, R. F. C. Brown, V. M. Clark, J. O. Sutherland, and A. Todd, J. Chem. Soc., 2094 (1959).

  4. M. Lamchen and T. W. Mittag, J. Chem. Soc., C, 2360 (1966).

  5. K. Akagane and G. G. Allan, Chem. Ind., 38 (1974).

  6. K. Krishan and H. Singh, Indian J. Chem., 12, 222 (1974).

    Google Scholar 

  7. J. Baldwin and N. Rogers, Chem. Commun., 524 (1965).

  8. S. O. Chua, M. J. Cook, and A. R. Katritzky, J. Chem. Soc., B, 2350 (1971).

  9. K. M. Fry and E. L. May, J. Org. Chem., 26, 2592 (1961).

    Google Scholar 

  10. P. K. Kadaba, B. Stanovnik, and M. Tisler, Tetrahedron Lett., 3715 (1974).

  11. L. B. Volodarskii and N. Yu. Tormysheva, Izv. Sibirsk. Otd. Akad. Nauk SSSR, Ser. Khim., No. 4, 136 (1976).

    Google Scholar 

  12. L. B. Volodarskii, V. S. Kobrin, and Yu. G. Putsykin, Khim. Geterotsikl. Soedin., No. 9, 1241 (1972).

    Google Scholar 

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1557–1561, November, 1976.

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Kobrin, V.S., Volodarskii, L.B. Reduction of 4H-imidazole N-oxides with sodium borohydride. Chem Heterocycl Compd 12, 1280–1284 (1976). https://doi.org/10.1007/BF00470234

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  • DOI: https://doi.org/10.1007/BF00470234

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