Novel substituted 2-acetamido thiophene-4-styryl disperse dyes

Ethyl 2‐acetamido‐3‐cyano‐5‐carbethoxy thiophene‐4‐acetic acid ester has been synthesised by the Gewald reaction of diethyl acetonedicarboxylate, sulphur and malononitrile, followed by acetylation. A variety of aryl and hetaryl aldehydes were condensed with this thiophene derivative in refluxing DMF...

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Veröffentlicht in:	Journal of chemical technology and biotechnology (1986) 1993, Vol.56 (4), p.401-405
Hauptverfasser:	Rangnekar, Dinesh W., Sabnis, Ram W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Chemical industry and chemicals Dyes, pigments Exact sciences and technology fluorescent disperse dyes Industrial chemicals polyester styryls synthesis thiophene compounds
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Ethyl 2‐acetamido‐3‐cyano‐5‐carbethoxy thiophene‐4‐acetic acid ester has been synthesised by the Gewald reaction of diethyl acetonedicarboxylate, sulphur and malononitrile, followed by acetylation. A variety of aryl and hetaryl aldehydes were condensed with this thiophene derivative in refluxing DMF in the presence of piperidine to yield novel styryl dyes. The fluorescence in solution and dyeing properties of these styryl dyes on polyester were studied.
ISSN:	0268-2575 1097-4660
DOI:	10.1002/jctb.280560412