Cyanine dyes from seven-membered heterocyclic systems
- 25 Downloads
The condensation of o-aminothiophenol with tetrahydroacetophenone, 2-ethylidenecyclohexanone, and 2-benzylidenecyclohexanone and also the condensation of N-methyl-o-aminothiophenol with 2-benzylidenecyclohexanone has given the bases of derivatives of benzo[b]cyclohexano[f]- and -[e]-1,4-thiazepines. From the hydrochlorides, perchlorates, and quaternary salts of these bases, cyanine dyes have been synthesized. The dyes—norcyanines—exhibit solvatochromism, which is explained by the existence of a hydrogen bond between the molecules of the dye and an alcohol.
KeywordsHydrogen Alcohol Hydrogen Bond Organic Chemistry Hydrochloride
Unable to display preview. Download preview PDF.
- 1.L. Bellamy, Infrared Spectra of Complex Molecules [Russian translation], IL, Moscow, 1963.Google Scholar
- 2.L. K. Mushkalo and Z. I. Shokol, ZhOKh,31, 3069, 1961.Google Scholar
- 3.L. K. Mushkalo and N. K. Mikhailyuchenko, Ukr. khim. zh.,30, 202, 1964.Google Scholar
- 4.L. K. Mushkalo and N. K. Mikhailyuchenko, Ukr. khim. zh.,30, 608, 1964.Google Scholar
- 5.L. K. Mushkalo and Z. I. Lanovaya, Ukr. khim. zh.,21, 631, 1955.Google Scholar
- 6.M. V. Deichmeister, N. S. Spasokukotskii, Yu. Sh. Moshkovskii, and L. V. Zhilina, ZhOKh,31, 3631, 1961.Google Scholar