Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity

A series of pyrazolines 4a-g have been synthesized by Michael addition of chalcones 3a-g with hydrazine hydrate in presence of sodium acetate under conventional heating and microwave irradiation. Structures of the newly synthesized chalcones 3a-g and pyrazolines 4a-g have been established o...

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Main Authors: Ashok Dongamanti, Lakshmi Bommidi Vijaya, Ravi Sidda, Ganesh Arram
Format: Article
Language:English
Published: Serbian Chemical Society 2015-01-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0352-5139/2015/0352-51391400101A.pdf
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author Ashok Dongamanti
Lakshmi Bommidi Vijaya
Ravi Sidda
Ganesh Arram
author_facet Ashok Dongamanti
Lakshmi Bommidi Vijaya
Ravi Sidda
Ganesh Arram
author_sort Ashok Dongamanti
collection DOAJ
description A series of pyrazolines 4a-g have been synthesized by Michael addition of chalcones 3a-g with hydrazine hydrate in presence of sodium acetate under conventional heating and microwave irradiation. Structures of the newly synthesized chalcones 3a-g and pyrazolines 4a-g have been established on the basis of IR, 1H & 13C NMR and mass spectral data. All the synthesized compounds were screened for their antimicrobial activity. Some of the compounds shown very good activity compared to standard drugs against all pathogenic bacteria and fungi.
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spelling doaj.art-996c5c0a62144fe8a72bf3bc05a568772022-12-21T20:56:25ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212015-01-0180330531310.2298/JSC140021101A0352-51391400101AMicrowave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activityAshok Dongamanti0Lakshmi Bommidi Vijaya1Ravi Sidda2Ganesh Arram3Osmania University, Department of Chemistry, Hyderabad, IndiaOsmania University, Department of Chemistry, Hyderabad, IndiaOsmania University, Department of Chemistry, Hyderabad, IndiaOsmania University, Department of Chemistry, Hyderabad, IndiaA series of pyrazolines 4a-g have been synthesized by Michael addition of chalcones 3a-g with hydrazine hydrate in presence of sodium acetate under conventional heating and microwave irradiation. Structures of the newly synthesized chalcones 3a-g and pyrazolines 4a-g have been established on the basis of IR, 1H & 13C NMR and mass spectral data. All the synthesized compounds were screened for their antimicrobial activity. Some of the compounds shown very good activity compared to standard drugs against all pathogenic bacteria and fungi.http://www.doiserbia.nb.rs/img/doi/0352-5139/2015/0352-51391400101A.pdfcoumarinchalconesMichael additionmicrowave irradiationpyrazolines
spellingShingle Ashok Dongamanti
Lakshmi Bommidi Vijaya
Ravi Sidda
Ganesh Arram
Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity
Journal of the Serbian Chemical Society
coumarin
chalcones
Michael addition
microwave irradiation
pyrazolines
title Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity
title_full Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity
title_fullStr Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity
title_full_unstemmed Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity
title_short Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity
title_sort microwave assisted synthesis of some new coumarin pyrazoline hybrids and their antimicrobial activity
topic coumarin
chalcones
Michael addition
microwave irradiation
pyrazolines
url http://www.doiserbia.nb.rs/img/doi/0352-5139/2015/0352-51391400101A.pdf
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AT ravisidda microwaveassistedsynthesisofsomenewcoumarinpyrazolinehybridsandtheirantimicrobialactivity
AT ganesharram microwaveassistedsynthesisofsomenewcoumarinpyrazolinehybridsandtheirantimicrobialactivity