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Synthesis and characterization of novel fluorescent compounds derived from 1,4‐diethyl‐1,2,3,4‐tetrahydro‐6‐nitroquinoxaline
Author(s) -
Satam Vijay S.,
Rajule Rajkumar N.,
Jagtap Amit R.,
Bendre Samir R.,
Pati Hari N.,
Kanetkar Vinod R.
Publication year - 2010
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.422
Subject(s) - chemistry , thermogravimetric analysis , fluorescence , thermal decomposition , thermal stability , absorption (acoustics) , catalysis , photochemistry , medicinal chemistry , nuclear chemistry , combinatorial chemistry , organic chemistry , optics , physics
1,4‐Diethyl‐1,2,3,4‐tetrahydro‐6‐nitroquinoxaline 4 was synthesized by alkylative reduction of 6‐nitroquinoxaline. Catalytic reduction of 4 followed by cyclocondensation with heterocyclic malondialdehydes afforded novel 8‐(heteroaryl)‐1,4‐diethyl‐1,2,3,4‐tetrahydropyrido[2,3‐g]quinoxalines. The solutions of these novel compounds having 1,4‐diethyl‐1,2,3,4‐tetrahydroquinoxaline framework as an electron releasing system showed absorption in the range of 424–426 nm in the visible region and exhibited brilliant bluish‐green fluorescence. The thermogravimetric curve obtained by thermogravimetric analysis displayed that these fluorophores possess excellent thermal stability with one‐step thermal decomposition . J. Heterocyclic Chem., (2010).