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Synthesis of 9,10‐Bis‐hetaryl anthracenes and their application on polyester fibres as disperse dyes
Author(s) -
Rangnekar D. W.,
Rajadhyaksha D. D.
Publication year - 1990
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280470207
Subject(s) - anthracene , polyester , halogenation , chemistry , polymer chemistry , photochemistry , materials science , organic chemistry
9,10‐Dibromoanthracene ( 2 ) obtained from anthracene by bromination was reacted with cuprous cyanide in refluxing DMF to obtain 9,10‐dicyanoanthracene ( 3 ). The key intermediate ( 3 ) was condensed with orthophenylenediamine ( 4a ), ortho ‐aminophenol ( 4b ) and dicyanodiamine ( 6 ) to give 9,10‐bis(benzimidazol‐2‐yl)anthracene ( 5a ), 9,10‐bis(benzoxazol‐2‐yl)anthracene ( 5b ) and 9,10‐bis(4,6‐diamino‐S‐triazin‐2‐yl)anthracene ( 5c ), respectively. The spectral properties of 5a‐5c were studied. These compounds, when applied as disperse dyes on polyester fibres, gave excellent results.