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Synthesis and properties of carbamoyl derivatives of 5-hydroxy-3,3,5-trimethylisoxazolidine

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The reaction of 5-hydroxy-3,3,5-trimethylisoxazolidine with alkyl (or aryl) isocyanates gives N-alkyl(aryl)-carbamoyl-5-hydroxy-3,3,5-trimethylisoxazolidines, which react with methanol in the presence of p-toluenesulfonic acid to give 5-methoxy-1-carbamoyl derivatives of isoxazolidine. When arylcarbamoyl-5-hydroxy-3,3,5-trimethylisoxazolidines are heated in carbon tetrachloride, they are converted to O-arylcarbamoyl-N-(2-methyl-4-oxo-2-pentyl)hydroxylamines, the treatment of which with hydrogen chloride in benzene made it possible to isolate 1,2,6-oxadiazepin-7-ones along with the hydrochloride of the given compounds.

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 746–750, June, 1979.

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Rukasov, A.F., Tashchi, V.P., Kondrat'ev, Y.A. et al. Synthesis and properties of carbamoyl derivatives of 5-hydroxy-3,3,5-trimethylisoxazolidine. Chem Heterocycl Compd 15, 603–607 (1979). https://doi.org/10.1007/BF00539492

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  • DOI: https://doi.org/10.1007/BF00539492

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