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4–Hydroxy–3–arylamino–l, 8–naphthalimides and 3–(and 4–) hydroxy–2–(and 5–) arylamino–7H–bcnzimidazo–(2, l– a )benz( d , e )isoquinolin–7–ones. Red dyes for synthetic–polymer fibres
Author(s) -
Peters A T,
Dekhordi M Mehdi Shahab
Publication year - 1990
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1990.tb01265.x
Subject(s) - chemistry , imidazole , imide , orange (colour) , polyester , yield (engineering) , polymer chemistry , medicinal chemistry , organic chemistry , materials science , food science , metallurgy
4–Hydroxy–1, 8–naphthalimides and the isomer mixtures of'3–and 4–hydroxy–7 H–benzimidazo–(2, l–a)–benz(d, e)–isoquinolin–7–ones were coupled with diazotised arylamines to yield orange–red to bluish–red dyes having good coloration properties and excellent fastness to light on polyester fibres. Structure–property relationships in the dyes are discussed with respect to the nature of the substituents in the imide, imidazole and arylazo moieties.