Abstract
The structure of 2-methylthieno[2, 3-g]benzothiazole, previously obtained by potassium ferricyanide oxidation of 5-thioacetylaminothionaphthene in alkaline solution, is proved. A synthesis of this base is effected by heating 5, 5′-diacetylamino-4, 4′-dithionaphthenyldisulfide with zinc dust in acetic acid-acetic anhydride. Quino-(2)monomethyl-, carbo-, mero-, dimero-, and thiocyanato dyes are obtained, as well as styryl dyes containing a thieno[2, 3-g]benzothiazole group, and their colors are investigated.
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Z. I. Miroshnichenko and M. A. Al'perovich, ZhOrKh, 1, 289, 1965.
J. G. Farbenindustrie, A. G. French patent 831218, C., 1, 880, 1939.
W. Konig and W. Meier, J. pr Chem., 109, 324, 1925.
F. M. Hamer, J. Chem. Soc., 3160, 1928.
M. V. Deichmeister, Z. P. Sytnik, and E. B. Lifshits, ZhOKh, 22, 166, 1952.
K. Fries, H. Heering, E. Hemmecke, and G. Siebert, Ann., 527, 38, 1936.
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Moskalenko, Z.I., Al'perovich, M.A. Polymethine dyes from isomeric 2-methylthionaphthenothiazoles. Chem Heterocycl Compd 3, 505–507 (1967). https://doi.org/10.1007/BF00481584
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DOI: https://doi.org/10.1007/BF00481584