Title of article
Synthesis and spectroscopic properties of some merocyanine dyes
Author/Authors
Hepworth، John D. نويسنده , , Gabbutt، Christopher D. نويسنده , , Heron، B. Mark نويسنده , , Partington، Steven M. نويسنده , , Thomas، David A. نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
-64
From page
65
To page
0
Abstract
The reaction between some 1,1-diarylprop-2-yn-1-ols 3 and cyclohexane-1,3-diones affords merocyanine dyes 7, the valence tautomers of the tetrahydro-2H-[1]benzopyrans. The spectroscopic properties of these dyes are discussed. The isomeric merocyanine dyes 14 and 15 derived from the reaction of 1,1-bis(4-dimethyl-aminophenyl)prop-2-yn-1-ol and 2-tetralone are dehydrogenated to the photochromic 3H-naphtho[2,1-b]pyran 12. This protocol constitutes a new route to the photochromic naphthopyran unit.
Keywords
Disperse dyeing , Cationic surfactant , Dyeing auxiliaries , Nylon 6 , Gemini surfactant
Journal title
DYES & PIGMENTS
Serial Year
2001
Journal title
DYES & PIGMENTS
Record number
54674
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