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Synthesis and characterisation of 3‐ketocoumarins: substituent effects on colour
Author(s) -
Tsatsaroni E G,
Peters A T,
Lin S M,
Peters A T
Publication year - 1999
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.1999.tb00299.x
Subject(s) - salicylaldehyde , substituent , condensation , chemistry , mass spectrum , spectral line , computational chemistry , series (stratigraphy) , organic chemistry , mass spectrometry , stereochemistry , chromatography , thermodynamics , physics , schiff base , astronomy , paleontology , biology
Two series of 3‐ketocoumarin dyes, the methyI‐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 1 H‐NMR and mass spectra. Electronic spectra are also recorded and discussed.