Abstract
1-Bromophenothiazine (I) and 1,3-dibromophenothiazine (II) have been synthesized by the intramolecular rearrangement of 2-acetylaminophenyl 2-bromo-6-nitrophenyl sulfide (III) and 2-acetylaminophenyl 2,4-dibromo-6-nitrophenyl sulfide (VIII) and the subsequent cyclization of resulting N-acetyl-2-bromo-2′-mercapto-6-nitrodiphenylamine (IV) and N-acetyl-2,4-dibromo-2′-mercapto-2-nitrodiphenylamine (IX), followed by saponification of the acetyl groups of the latter, respectively.
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For Communication XXIV see [6].
Translated from Khimiya Geterotsiklicheskikh Soedinenii, Vol. 6, No. 8, pp. 1041–1044, August, 1970.
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Zhuravlev, S.V., Gritsenko, A.N., Ermakova, Z.I. et al. Synthesis in the phenothiazine series. Chem Heterocycl Compd 6, 968–971 (1970). https://doi.org/10.1007/BF00480625
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DOI: https://doi.org/10.1007/BF00480625