Catalytic methods were developed for the synthesis of N-hydroxyalkyl-1,5,3-dithiazepanes by recyclization of 1-oxa-3,6-dithiacycloheptane with amino alcohols and by intermolecular cyclization of 1,2-ethanedithiol with methoxymethylamino alcohols.
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This work received financial support from the Russian Foundation for Basic Research (grants 13-03-12027 ofi_m, 14-03-00240-а, 14-03-97023-r_povolzhye_а), and NSh-2136.2014.3.
The authors would like to express their gratitude to V. A. Veklov from the laboratory of catalyst preparation, Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, for the contribution of heterogeneous catalysts.
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