A. T. Peters, M. Bide
1985
Citations
0
Influential Citations
80
Citations
Quality indicators
Journal
Dyes and Pigments
Abstract
Abstract Condensation of 4-halogeno-1,8-naphthalic anhydride with the appropriate cyclic secondary amines gives the 4-morpholino-, 4-piperidino-, 4-pyrrolidino- and 4-piperazino- derivatives. These intermediates afford yellow to orange dyes for synthetic-polymer fibres when condensed with alkylamines, arylamines and o-phenylenediamines. Also described are 4-imidazolo- and pyrido [5,6-c]-1,8-naphthalic anhydrides; imides of these are colourless, but derived 7H-benzimidazo[2,1-a]benz[d,e]isoquinolin7-ones are yellow dyes. Coloration and fastness properties of many of these derivatives on polyester are good. The effect of an additional nitro group ortho to the amino substituents is also investigated.