Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions

Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions

Bio-heterogeneous kenaf cellulose supported poly(hydroxamic acid) Cu(II) complex and corresponding copper nanoparticles (CuN@PHA) were synthesized and characterized. Cellulose supported poly(hydroxamic acid) copper nanoparticles was successfully applied to the Aza-Michael addition reaction of amines...

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Main Authors: Mandal, Bablu Hira, Lutfor, M. R., Mohd Hasbi, Ab. Rahim, Sarkar, Shaheen M.
Format: Article
Published: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 2016
Subjects:
QD Chemistry
Online Access:http://umpir.ump.edu.my/id/eprint/16923/
http://umpir.ump.edu.my/id/eprint/16923/
http://umpir.ump.edu.my/id/eprint/16923/
id ump-16923
recordtype eprints
spelling ump-169232019-09-10T02:31:46Z http://umpir.ump.edu.my/id/eprint/16923/ Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions Mandal, Bablu Hira Lutfor, M. R. Mohd Hasbi, Ab. Rahim Sarkar, Shaheen M. QD Chemistry Bio-heterogeneous kenaf cellulose supported poly(hydroxamic acid) Cu(II) complex and corresponding copper nanoparticles (CuN@PHA) were synthesized and characterized. Cellulose supported poly(hydroxamic acid) copper nanoparticles was successfully applied to the Aza-Michael addition reaction of amines with a,b-unsaturated carbonyl/cyano compounds and poly(hydroxamic acid) Cu(II) complex was applied to the Click reactions of organic azides with alkynes in presence of sodium ascorbate as highly active catalysts under mild reaction conditions. The copper nanoparticles (50 mol ppm) selectively boosted Aza-Michael addition reaction to give the corresponding alkylated products in up to 96% yield, whereas poly(hydroxamic acid) Cu(II) complex (0.25 mol%) efficiently promoted Click reaction to give the corresponding 1,2,3-triazoles in up to 94% yields. Excellent reusability of the supported copper catalysts were found with no significant loss of catalytic activity for several cycles having high turnover number (TON) 18000 and turnover frequency (TOF) 3000 h�1 in the Aza-Michael addition reaction Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 2016 Article PeerReviewed Mandal, Bablu Hira and Lutfor, M. R. and Mohd Hasbi, Ab. Rahim and Sarkar, Shaheen M. (2016) Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions. ChemistrySelect, 1 (11). pp. 2750-2756. ISSN 2365-6549 http://dx.doi.org/10.1002/slct.201600490 DOI: 10.1002/slct.201600490
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
topic QD Chemistry
spellingShingle QD Chemistry
Mandal, Bablu Hira
Lutfor, M. R.
Mohd Hasbi, Ab. Rahim
Sarkar, Shaheen M.
Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions
description Bio-heterogeneous kenaf cellulose supported poly(hydroxamic acid) Cu(II) complex and corresponding copper nanoparticles (CuN@PHA) were synthesized and characterized. Cellulose supported poly(hydroxamic acid) copper nanoparticles was successfully applied to the Aza-Michael addition reaction of amines with a,b-unsaturated carbonyl/cyano compounds and poly(hydroxamic acid) Cu(II) complex was applied to the Click reactions of organic azides with alkynes in presence of sodium ascorbate as highly active catalysts under mild reaction conditions. The copper nanoparticles (50 mol ppm) selectively boosted Aza-Michael addition reaction to give the corresponding alkylated products in up to 96% yield, whereas poly(hydroxamic acid) Cu(II) complex (0.25 mol%) efficiently promoted Click reaction to give the corresponding 1,2,3-triazoles in up to 94% yields. Excellent reusability of the supported copper catalysts were found with no significant loss of catalytic activity for several cycles having high turnover number (TON) 18000 and turnover frequency (TOF) 3000 h�1 in the Aza-Michael addition reaction
format Article
author Mandal, Bablu Hira
Lutfor, M. R.
Mohd Hasbi, Ab. Rahim
Sarkar, Shaheen M.
author_facet Mandal, Bablu Hira
Lutfor, M. R.
Mohd Hasbi, Ab. Rahim
Sarkar, Shaheen M.
author_sort Mandal, Bablu Hira
title Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions
title_short Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions
title_full Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions
title_fullStr Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions
title_full_unstemmed Highly Active Kenaf Bio-Cellulose Based Poly(hydroxamic acid) Copper Catalyst for Aza-Michael Addition and Click Reactions
title_sort highly active kenaf bio-cellulose based poly(hydroxamic acid) copper catalyst for aza-michael addition and click reactions
publisher Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/16923/
http://umpir.ump.edu.my/id/eprint/16923/
http://umpir.ump.edu.my/id/eprint/16923/
first_indexed 2023-09-18T22:23:01Z
last_indexed 2023-09-18T22:23:01Z
_version_ 1777415782282559488

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