Novel environmentally benign procedures for the synthesis of styryl dyes

Autores
Vasilev, Aleksey; Deligeorgiev, Todor; Gadjev, Nikolai; Kaloyanova, Stefka; Vaquero López, Juan J.; [et al.]
Identificadores
Enlace permanente (URI): http://hdl.handle.net/10017/4205
DOI: 10.1016/j.dyepig.2007.08.004
ISSN: 0143-7208
Editor
Elsevier
Fecha de publicación
2008
Filiación
Universidad de Alcalá. Departamento de Química Orgánica
Cita bibliográfica
Dyes and Pigments, 2008, v.77, n.3, p.550-555
Palabras clave
Styryl dyes
Synthesis
Solvent-free
Microwave
Green chemistry
Tipo de documento
info:eu-repo/semantics/article
Versión
info:eu-repo/semantics/publishedVersion
Versión del editor
http://dx.doi.org/10.1016/j.dyepig.2007.08.004
Derechos
© Elsevier, 2007
Derechos de acceso
info:eu-repo/semantics/openAccess
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Resumen
A series of styrylpyridinium, styrylquinolinium and styrylbenzothiazolium dyes have been synthesized by novel environmentally benign procedures. The condensation of 4-methylpyridinium methosulphate, 2- or 4-methylquinolinium methosulphate or 2-methylbenzothiazolium methosulphate with aromatic aldehydes was performed under solvent-free conditions or microwave irradiation in the presence of different basic or acidic reagents. The chemical structures of the derived styrylcyanine dyes were confirmed by 1H NMR and UV–vis spectroscopies and elemental analysis.
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