Abstract
The reaction of 3-oxodihydrothionaphthenes with aryl diazonium chlorides gives 2-arylhydrazono-3-oxodihydrothionaphthenes. By oxidation of the latter with hydrogen peroxide in glacial acetic add, new 2-arylhydrazonodihydrothionaphthene-(3)-one-1, 1-dioxides are synthesized. Condensation of aryl isothiocyanates with 3-oxodihydrothionaphthenes in tetrahydrofuran gives 2-(arylthiocarbamyl)-3-oxodihydrothionaphthenes; cyclization of the latter with ω-bromoacetophene leads to the synthesis of 4-phenyl-3-aryl-2-(3′ -oxodihydrothionaphthylidene-2′)-Δ4-thiazolines.
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Lozinskii, M.O., Sanova, S.N. & Pel'kis, P.S. Reaction of 3-oxodihydrothionaphthenes with aryl diazonium chlorides and aryl isothiocyanates. Chem Heterocycl Compd 3, 369–372 (1967). https://doi.org/10.1007/BF00945367
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DOI: https://doi.org/10.1007/BF00945367