Abstract
1-Thiocarbamoyl-2-phenylpyrazolidines are cyclized to give 2,3,4,5-tetrahydropyrimido[2,-1-b]benzothiazoles, the structure of which was proved by mass spectrometry.
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A. Hugershoft, Ber., 36, 3134 (1903).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 495–496, April, 1973.
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Kost, A.N., Golubeva, G.A. & Sviridova, L.A. Synthesis of 2,3,4,5-tetrahydropyrimido[2,1-b]-benzothiazoles. Chem Heterocycl Compd 9, 456–457 (1973). https://doi.org/10.1007/BF00471524
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DOI: https://doi.org/10.1007/BF00471524