The synthesis and characterization of novel coumarin dyes derived from 1,4-diethyl-1,2,3,4-tetrahydro-7-hydroxyquinoxalin-6-carboxaldehyde

被引:92
作者
Jagtap, Amit R. [1 ]
Satam, Vijay S. [1 ]
Rajule, Rajkumar N. [1 ]
Kanetkar, Vinod R. [1 ]
机构
[1] Univ Bombay, Inst Chem Technol, Dept Dyestuff Technol, Bombay 400019, Maharashtra, India
关键词
1,4-Diethyl-1,2,3,4-tetrahydro-7-hydroxyquinoxalin-6-carboxaldehyde; Coumarins; Synthesis; Fluorescence; Thermal stability; Spectral characteristics; SODIUM-BOROHYDRIDE; ACIDIC MEDIA; CARBOXYLIC-ACIDS; REDUCTION; LASER; FLUORESCENCE; ALKYLATION; INDOLES;
D O I
10.1016/j.dyepig.2008.11.007
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
1,4-Diethyl-1,2,3,4-tetrahydro-7-hydroxyquinoxalin-6-carboxaldehyde was synthesized and condensed with substituted active methylene compounds to obtain a series of novel coumarin compounds. Solutions of the dyes in various solvents exhibited an orange hue and brilliant fluorescence and displayed high thermal stability, as determined using thermogravimetric analysis. The dye having a heterocyclic benzimidazole ring as an electron withdrawing system was selected as a representative compound for comparison of its spectral characteristics with known analogues. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:84 / 89
页数:6
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