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Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions

Optimization of a green approach to the synthesis of pyrano[2,3-c]pyrazoles based on the one-pot, four-component condensation via a domino Knoevenagel/Michael/cyclization sequence was investigated. This method involved the evaluation of the activity of several ionic liquids (ILs) in various solvents...

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Main Authors: Zakeri, M., Nasef, M. M., Kargaran, T., Ahmad, A., Abouzari Lotf, E., Asadi, J.
Format: Article
Published: Springer Netherlands 2017
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/75733/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979256984&doi=10.1007%2fs11164-016-2648-y&partnerID=40&md5=e4f2e267df9ab2c41ec1ccf500a587fe
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spelling my.utm.757332018-04-30T13:13:42Z http://eprints.utm.my/id/eprint/75733/ Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions Zakeri, M. Nasef, M. M. Kargaran, T. Ahmad, A. Abouzari Lotf, E. Asadi, J. T Technology (General) Optimization of a green approach to the synthesis of pyrano[2,3-c]pyrazoles based on the one-pot, four-component condensation via a domino Knoevenagel/Michael/cyclization sequence was investigated. This method involved the evaluation of the activity of several ionic liquids (ILs) in various solvents. This one-pot, four-component reaction revealed simplicity, higher yield and lower toxicity advantages over a corresponding three-component method. The effect of reaction parameters including the type and amount of catalyst, type of solvent, reaction temperature and time were studied with respect to yield of pyrano[2,3-c]pyrazoles. Catalyst recyclability and time-saving aspects of the reaction suggest that this method presents real alternatives over conventional reaction protocols. Springer Netherlands 2017 Article PeerReviewed Zakeri, M. and Nasef, M. M. and Kargaran, T. and Ahmad, A. and Abouzari Lotf, E. and Asadi, J. (2017) Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions. Research on Chemical Intermediates, 43 (2). pp. 717-728. ISSN 0922-6168 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979256984&doi=10.1007%2fs11164-016-2648-y&partnerID=40&md5=e4f2e267df9ab2c41ec1ccf500a587fe
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Zakeri, M.
Nasef, M. M.
Kargaran, T.
Ahmad, A.
Abouzari Lotf, E.
Asadi, J.
Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions
description Optimization of a green approach to the synthesis of pyrano[2,3-c]pyrazoles based on the one-pot, four-component condensation via a domino Knoevenagel/Michael/cyclization sequence was investigated. This method involved the evaluation of the activity of several ionic liquids (ILs) in various solvents. This one-pot, four-component reaction revealed simplicity, higher yield and lower toxicity advantages over a corresponding three-component method. The effect of reaction parameters including the type and amount of catalyst, type of solvent, reaction temperature and time were studied with respect to yield of pyrano[2,3-c]pyrazoles. Catalyst recyclability and time-saving aspects of the reaction suggest that this method presents real alternatives over conventional reaction protocols.
format Article
author Zakeri, M.
Nasef, M. M.
Kargaran, T.
Ahmad, A.
Abouzari Lotf, E.
Asadi, J.
author_facet Zakeri, M.
Nasef, M. M.
Kargaran, T.
Ahmad, A.
Abouzari Lotf, E.
Asadi, J.
author_sort Zakeri, M.
title Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions
title_short Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions
title_full Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions
title_fullStr Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions
title_full_unstemmed Synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions
title_sort synthesis of pyrano2,3-cpyrazoles by ionic liquids under green and eco-safe conditions
publisher Springer Netherlands
publishDate 2017
url http://eprints.utm.my/id/eprint/75733/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979256984&doi=10.1007%2fs11164-016-2648-y&partnerID=40&md5=e4f2e267df9ab2c41ec1ccf500a587fe
_version_ 1643657145747505152
score 13.211869

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