l, 9-Substituted fluorenes

Autor: S. A. Mikhalenko, N. S. Dokunikhin
Rok vydání: 1967
Předmět:
Zdroj: Chemistry of Heterocyclic Compounds. 2:319-322
ISSN: 1573-8353
0009-3122
Popis: The synthesis of 2-methyl (phenyl)-2, 3H-pyridazino-[4, 5, 6-m- l] fluorene-3-methylthionium methylsulfates and of derivatives with substituents in the fluorene ring, is described. Reaction of the latter with heterocyclic hydrazones, and also with compounds containing an active methylene or methyl group, gives cyanine dyes. The electronic spectra of the dyes are measured.
Databáze: OpenAIRE
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