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Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation

Environmentally benign, simple, efficient and clean syntheses of 3-carboxycoumarins and ethyl coumarin-3-carboxylate have been synthesized via Knoevenagel condensation using green catalysts such as aqueous extract of Acacia concinna pods and amino acids. These syntheses were carried out in solvents...

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Main Authors: Syed Salman, Shafqat, Amirazam, Khan, Misbahulain, Khan, Shanti Faridah, Salleh, Mohd Syahmi, Jamaludin, Pang, Suh Cem
Format: Article
Language:English
Published: Chemical Publishing Co 2017
Subjects:
QD Chemistry
TP Chemical technology
Online Access:http://ir.unimas.my/id/eprint/15428/2/Green%20synthesis.pdf
http://ir.unimas.my/id/eprint/15428/
http://www.asianjournalofchemistry.co.in/user/journal/viewarticle.aspx?ArticleID=29_2_5
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spelling my.unimas.ir.154282022-06-24T01:23:34Z http://ir.unimas.my/id/eprint/15428/ Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation Syed Salman, Shafqat Amirazam, Khan Misbahulain, Khan Shanti Faridah, Salleh Mohd Syahmi, Jamaludin Pang, Suh Cem QD Chemistry TP Chemical technology Environmentally benign, simple, efficient and clean syntheses of 3-carboxycoumarins and ethyl coumarin-3-carboxylate have been synthesized via Knoevenagel condensation using green catalysts such as aqueous extract of Acacia concinna pods and amino acids. These syntheses were carried out in solvents as well as solvent-less media. The yields obtained (between 86 % to 96 %) for the reactions were equal or better than those previously reported. The products were isolated, purified and characterized through melting points, TLC, IR, GC Mass and 1H NMR spectroscopy. The characterized molecules showed structural and compositional conformity with the predicted reactions. The green route used for these reactions has shown to be efficient in reducing the time of reaction and in avoiding the toxic nature of the catalysts employed in classical reaction Chemical Publishing Co 2017 Article PeerReviewed text en http://ir.unimas.my/id/eprint/15428/2/Green%20synthesis.pdf Syed Salman, Shafqat and Amirazam, Khan and Misbahulain, Khan and Shanti Faridah, Salleh and Mohd Syahmi, Jamaludin and Pang, Suh Cem (2017) Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation. Asian Journal of Chemistry, 29 (2). pp. 261-266. ISSN 0970-7077 http://www.asianjournalofchemistry.co.in/user/journal/viewarticle.aspx?ArticleID=29_2_5 DOI: 10.14233/ajchem.2017.20142
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QD Chemistry
TP Chemical technology
spellingShingle QD Chemistry
TP Chemical technology
Syed Salman, Shafqat
Amirazam, Khan
Misbahulain, Khan
Shanti Faridah, Salleh
Mohd Syahmi, Jamaludin
Pang, Suh Cem
Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation
description Environmentally benign, simple, efficient and clean syntheses of 3-carboxycoumarins and ethyl coumarin-3-carboxylate have been synthesized via Knoevenagel condensation using green catalysts such as aqueous extract of Acacia concinna pods and amino acids. These syntheses were carried out in solvents as well as solvent-less media. The yields obtained (between 86 % to 96 %) for the reactions were equal or better than those previously reported. The products were isolated, purified and characterized through melting points, TLC, IR, GC Mass and 1H NMR spectroscopy. The characterized molecules showed structural and compositional conformity with the predicted reactions. The green route used for these reactions has shown to be efficient in reducing the time of reaction and in avoiding the toxic nature of the catalysts employed in classical reaction
format Article
author Syed Salman, Shafqat
Amirazam, Khan
Misbahulain, Khan
Shanti Faridah, Salleh
Mohd Syahmi, Jamaludin
Pang, Suh Cem
author_facet Syed Salman, Shafqat
Amirazam, Khan
Misbahulain, Khan
Shanti Faridah, Salleh
Mohd Syahmi, Jamaludin
Pang, Suh Cem
author_sort Syed Salman, Shafqat
title Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation
title_short Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation
title_full Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation
title_fullStr Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation
title_full_unstemmed Green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via Knoevenagel condensation
title_sort green synthesis and characterization of 3-carboxycoumarin and ethylcoumarin-3-carboxylate via knoevenagel condensation
publisher Chemical Publishing Co
publishDate 2017
url http://ir.unimas.my/id/eprint/15428/2/Green%20synthesis.pdf
http://ir.unimas.my/id/eprint/15428/
http://www.asianjournalofchemistry.co.in/user/journal/viewarticle.aspx?ArticleID=29_2_5
_version_ 1736838255887777792
score 13.211869

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