Abstract
It was established by IR, UV, and PMR spectroscopy that 2-phenacylidenebenzo-1,4-thiazin-3-ones are formed in the reaction of o-aminothiophenol with aroylpyruvic acids or 5-arylfuran-2,3-diones. 2-Carbomethoxy-2-phenacyl-1,3-benzothiazolines were isolated in the reaction of o-aminothiophenol with aroylpyruvic acid esters.
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See [1] for communication IV.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 755–757, June, 1977.
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Andreichikov, Y.S., Tendryakova, S.P., Nalimova, Y.A. et al. Chemistry of oxalyl derivatives of methyl ketones. Chem Heterocycl Compd 13, 611–613 (1977). https://doi.org/10.1007/BF00480663
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DOI: https://doi.org/10.1007/BF00480663