Über neue Baumwollfarbstoffe

Hensel, Hans R.; Lützel, G.

doi:10.1002/ange.19650770705

Angewandte Chemie

1965

DOI: 10.1002/ange.19650770705

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Über neue Baumwollfarbstoffe

Hans R. Hensel¹,

G. Lützel²

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1965

1976

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Cited by 13 publications

References 19 publications

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Neue Wege in der Chemie der Pyridazone

Dury

1965

Angewandte Chemie

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Abb. 1. Zur Hydrolyse von Cm-, Cis-, Cm-und CzyYliden (c = 2.75.10-2 Mol/I) im MethanoUWasser-Gemisch (4:5) hei a) 26'C und b) 4 "C. Ordinate: x = Molmenge verbrauchte BaseIMolmenge Phosphoniumsalz. Abszisse: Dauer der Hydrolyse t [minl.Zerfall der Phosphoniumsalze unter dem EinfluB von Alkoholaten beobachten. Erst bei Wasserzusatz trat eine Spaltung ein, bei der immer der als Anion stabilste Rest in unserem Fall das Trimethylcyclohexen-Derivatabgespalten wurde [ *]. Die Haftfestigkeit dieser Reste nimmt dabei infolge der Resonanzstabilisierung mit zunehmender Kettenlange ab. Die leichte Spaltbarkeit laBt sich praparativ verwerten. So entsteht zurn Beispiel aus dein Axerophthyl-triphenylphosphoniumsalz (10)

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Neue Wege in der Chemie der Pyridazone

Dury

1965

Angewandte Chemie

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New Methods in the Chemistry Pyridazones

Dury

1965

Angew. Chem. Int. Ed. Engl.

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A new synthesis of mucochloric acid by chlorination of butynediol has facilitated the preparation of a series of 4,5-dichloropyridazones. The high reactivity of these compounds has been investigated and applied in several ways. New classes cf compounds, sunre with biological activity, were obtained by displacement of the chlorine atoms. New heterocyclic systenis were prepared by condensation and rearrangement reactions.

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Synthese von Cellulose‐Austauschern mit chelatbildenden funktionellen Gruppen

Burba

Lieser

1976

Angew. Makromol. Chem.

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ZUSAMMENFASSUNG:Eine neue, breit anwendbare Methode zur Darstellung von Celluloseaustauschern wird beschrieben. Bei der Synthese wird das Reaktionsprinzipder Reaktivfarbstoffe ,,RemazoY@ (WZ der Hoechst AG) in veranderter Form zugrunde gelegt. Die Synthese gelingt in zwei Varianten. Nach Variante A lassen sich funktionelle Gruppen direkt an Cellulose binden, nach B werden sie durch Diazo-Kupplung gebunden. SUMMARY:A new widely applicable method for the preparation of compounds for selective exchange on the basis of cellulose is described. For the synthesis the reaction principle for the preparation of ,,Remazol"@ (TM of Hoechst AG) dye stuffs is used in a modified form. Two variants are used. According to variant A functional groups are bound directly to cellulose. In variant B they are bound by diazo-coupling.

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Über neue Baumwollfarbstoffe

Cited by 13 publications

References 19 publications

Neue Wege in der Chemie der Pyridazone

Neue Wege in der Chemie der Pyridazone

New Methods in the Chemistry Pyridazones

Synthese von Cellulose‐Austauschern mit chelatbildenden funktionellen Gruppen

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