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Polycyclic compounds Part VII. Synthesis laser characteristics and dyeing behaviour of 7-diethylamino-2H-l-benzopyran-2-ones

Authors
Journal
Dyes and Pigments
0143-7208
Publisher
Elsevier
Publication Date
Volume
16
Issue
3
Identifiers
DOI: 10.1016/0143-7208(91)85010-6

Abstract

Abstract Several new 3-substituted benzoxazolyl/benzimidazolyl-7-diethylamino-2H-1-benzopyran-2-one laser dyes have been synthesized and their lasing characteristics evaluated. The spectral properties and dyeing characteristics of the new dyes are also discussed. The dyes 3b 3d and 3g showed great promise as efficient laser dyes with strong possibilities of commercial exploitation. Moreover, the new dyes imparted brilliant greenish yellow shades on polyester with moderate to good fastness properties making them suitable for use as disperse dyes.

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