Synthesis and characterisation of 3-ketocoumarins: substituent effects on colour

Authors: Tsatsaroni E.G.¹; Lin S.M.²; Peters A.T.³

Source: Coloration Technology, Volume 115, Number 2, 1999 , pp. 62-68(7)

Publisher: Society of Dyers and Colourists

Abstract:

Two series of 3-ketocoumarin dyes, the methyl-3-coumarinoylacetates and 3,3-carbonylbiscoumarins, were synthesised by condensation of salicylaldehyde derivatives with dimethyl-1,3-acetonedicarboxylate. The preparation of the corresponding cyanated derivatives of the above compounds is also reported. All compounds are characterised by their ¹H-NMR and mass spectra. Electronic spectra are also recorded and discussed.

Language: English

Document Type: Regular paper

Affiliations: 1: Dept of Chemistry, University of Thessaloniki, 540 06 Thessaloniki, Greece 2: Dept of Textile Engineering, Oriental Institute of Technology, Taipei Shien, Taiwan, ROC 3: Dept of Chemical Technology, University of Bradford, Bradford, West Yorkshire BD7 1DP, UK

Publication date: 1999-01-01

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