Chemistry of Heterocyclic Compounds p. 39 - 43 (1982)
Update date:2022-08-04
Topics:
Troitskaya, V. I.
Oksengendler, I. G.
Pazenok, S. V.
Lyubich, M. S.
Larina, S. M.
Yagupol'skii, L. M.
The synthesis of 2,3-dimethyl-5- and -6-trifluoromethylindoles and 2,3,3-trimethyl-4-, -5-, and -6-trifluoromethylindolenines, from which quarternary salts, as well as indocarbo- and di- and tricarbocyanine dyes were obtained, is described.The effect of the introduction of a trifluoromethyl group in the 4, 5, and 6 positions on the color of the indocyanine dyes is examined.
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