Synthesis of triazoflo[4,5-b]pyrido[1',2'-a]benzimidazole derivatives as fluorescent disperse dyes and whiteners for polyester fibre
Publication type: Journal Article
Publication date: 1988-01-01
scimago Q2
wos Q1
SJR: 0.680
CiteScore: 8.5
Impact factor: 4.2
ISSN: 01437208, 18733743
General Chemical Engineering
Process Chemistry and Technology
Abstract
Diazotised arylamines were coupled with the sodium salt of acetonitrile dimer to give α-arylazoacetonitrile dimers, which on condensation with 2-cyanomethylbenzimidazole gave the corresponding 1-amino-2-arylazo-4-cyano-3-methylpyrido [1,2-a]benzimidazoles, These were further converted into the respective 2-aryl-5-cyano-4-methyl-2H-1,2,3-triazolo [4,5-b] pyrido(1',2'-a]benzimidazoles. The 2-(4'-nitrophenyl)-, 2-(4'-methyl-phenyl): and 2-(4'-methoxyphenyl)- derivatives were applied as fluorescent disperse dyes and gave satisfactory results, and the 2-(4'-nitrophenyl)-derivative, which was also converted to the 2-(4'-acetamidophenyl)-derivative, was evaluated as a fluorescent whitener for polyester.
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GOST
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Dhamnaskar S. S., Rangnekar D. Synthesis of triazoflo[4,5-b]pyrido[1',2'-a]benzimidazole derivatives as fluorescent disperse dyes and whiteners for polyester fibre // Dyes and Pigments. 1988. Vol. 9. No. 6. pp. 467-473.
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Dhamnaskar S. S., Rangnekar D. Synthesis of triazoflo[4,5-b]pyrido[1',2'-a]benzimidazole derivatives as fluorescent disperse dyes and whiteners for polyester fibre // Dyes and Pigments. 1988. Vol. 9. No. 6. pp. 467-473.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1016/0143-7208(88)82006-0
UR - https://doi.org/10.1016/0143-7208(88)82006-0
TI - Synthesis of triazoflo[4,5-b]pyrido[1',2'-a]benzimidazole derivatives as fluorescent disperse dyes and whiteners for polyester fibre
T2 - Dyes and Pigments
AU - Dhamnaskar, Suchin Sudhakar
AU - Rangnekar, D.W.
PY - 1988
DA - 1988/01/01
PB - Elsevier
SP - 467-473
IS - 6
VL - 9
SN - 0143-7208
SN - 1873-3743
ER -
Cite this
BibTex (up to 50 authors)
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@article{1988_Dhamnaskar,
author = {Suchin Sudhakar Dhamnaskar and D.W. Rangnekar},
title = {Synthesis of triazoflo[4,5-b]pyrido[1',2'-a]benzimidazole derivatives as fluorescent disperse dyes and whiteners for polyester fibre},
journal = {Dyes and Pigments},
year = {1988},
volume = {9},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/0143-7208(88)82006-0},
number = {6},
pages = {467--473},
doi = {10.1016/0143-7208(88)82006-0}
}
Cite this
MLA
Copy
Dhamnaskar, Suchin Sudhakar, and D.W. Rangnekar. “Synthesis of triazoflo[4,5-b]pyrido[1',2'-a]benzimidazole derivatives as fluorescent disperse dyes and whiteners for polyester fibre.” Dyes and Pigments, vol. 9, no. 6, Jan. 1988, pp. 467-473. https://doi.org/10.1016/0143-7208(88)82006-0.