Synthesis and solution studies on azaphthalocyanines with quaternary aminoethyl substituents
| Autor: | Ahmet Gül, Rabia Zeynep Uslu Kobak |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Hydrochloride
Magnesium Materials Science (miscellaneous) General Chemical Engineering chemistry.chemical_element Medicinal chemistry Metal Propanol chemistry.chemical_compound chemistry Chemistry (miscellaneous) visual_art visual_art.visual_art_medium Proton NMR Trifluoroacetic acid Organic chemistry Derivative (chemistry) Methyl iodide |
| Zdroj: | Coloration Technology. 125:22-28 |
| ISSN: | 1478-4408 1472-3581 |
| DOI: | 10.1111/j.1478-4408.2008.00171.x |
| Popis: | A pyrazinedinitrile derivative carrying dimethylaminoethylsulphanyl groups at positions 5 and 6 was synthesised from 2-dimethylaminoethanethiol hydrochloride and 2,3-dicarbonitrile-5,6-dichloropyrazine. The dicarbonitrile gave magnesium azaphthalocyanine (MgAzaPc) when reacted with magnesium propoxide in propanol. The conversion of the MgAzaPc to a metal-free derivative was achieved by treatment with trifluoroacetic acid. Incorporation of transition metal ions into the inner core of azaphthalocyanine was accomplished by treatment of the metal-free derivative with metal acetates, i.e. Zn(OAc)2, Co(OAc)2. These azaphthalocyanines were converted into water-soluble quaternised products by reaction with methyl iodide. Aggregation phenomena were followed for magnesium azaphthalocyanine with quaternisable dimethylamino substituents within a specific range of pH. The compounds were characterised by Fourier transform–infrared, proton nuclear magnetic resonance, mass and ultraviolet–visible spectral data. |
| Databáze: | OpenAIRE |
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