A new method has been developed for the synthesis of 1,3-benzothiazol-2(3H)-ones with carbamate function based on the adducts of the 1,4-addition of thioacetic acid to 2-R-N,N'-dimethoxycarbonyl-1,4-benzoquinone diimines. Refluxing the 2-thioacetyl-substituted dicarbamates in ethanol in the presence of hydrochloric acid gave 1,3-benzothiazol-2(3H)-ones with methoxycarbonylamine group at the C-6 atom. Modifications of the obtained compounds were performed.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1808-1812, November, 2012.
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Velikorodov, A.V., Kuanchalieva, A.K. & Ionova, V.A. Synthesis of 1,3-benzothiazol-2(3H)-ones with a carbamate function at the C-6 atom. Chem Heterocycl Comp 48, 1691–1695 (2013). https://doi.org/10.1007/s10593-013-1194-4
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DOI: https://doi.org/10.1007/s10593-013-1194-4