Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions
We prepared a highly active cellulose supported poly(amidoxime) Cu-catalyst 2 by the surface modification of waste corn-cob cellulose through graft copolymerization process (Scheme 1). The Cu-catalyst 2 was efficiently promoted the click reaction1 of organic azides and terminal alkynes including the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Royal Society of Chemistry
2016
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| Online Access: | http://umpir.ump.edu.my/id/eprint/6727/ http://umpir.ump.edu.my/id/eprint/6727/1/Waste%20Corn-Cob%20Cellulose%20Supported%20Copper%20Catalyst%20for%20Click%20and%20Aza-Michael%20Reactions.pdf |
| _version_ | 1848817840238362624 |
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| author | Sarkar, Shaheen M. Sultana, Tahnim Biswas, Tapan Kumar Lutfor, M. R. M. M., Yusoff |
| author_facet | Sarkar, Shaheen M. Sultana, Tahnim Biswas, Tapan Kumar Lutfor, M. R. M. M., Yusoff |
| author_sort | Sarkar, Shaheen M. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | We prepared a highly active cellulose supported poly(amidoxime) Cu-catalyst 2 by the surface modification of waste corn-cob cellulose through graft copolymerization process (Scheme 1). The Cu-catalyst 2 was efficiently promoted the click reaction1 of organic azides and terminal alkynes including the three-component cyclization of a variety of alkynes, organic halides, and sodium azide (Scheme 2). The catalyst with 50 mol ppm (0.00050 mol%) to 0.05 mol% Cu promoted the cycloaddition with a TON of up to >18800, and was reused four times without loss of catalytic activity. Moreover the catalyst was also promoted the Aza-Michael reaction of aliphatic amines with a variety of olefins to give the corresponding products in up to 97% yield. |
| first_indexed | 2025-11-15T01:28:09Z |
| format | Article |
| id | ump-6727 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:28:09Z |
| publishDate | 2016 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-67272020-02-21T08:09:21Z http://umpir.ump.edu.my/id/eprint/6727/ Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions Sarkar, Shaheen M. Sultana, Tahnim Biswas, Tapan Kumar Lutfor, M. R. M. M., Yusoff Q Science (General) QD Chemistry We prepared a highly active cellulose supported poly(amidoxime) Cu-catalyst 2 by the surface modification of waste corn-cob cellulose through graft copolymerization process (Scheme 1). The Cu-catalyst 2 was efficiently promoted the click reaction1 of organic azides and terminal alkynes including the three-component cyclization of a variety of alkynes, organic halides, and sodium azide (Scheme 2). The catalyst with 50 mol ppm (0.00050 mol%) to 0.05 mol% Cu promoted the cycloaddition with a TON of up to >18800, and was reused four times without loss of catalytic activity. Moreover the catalyst was also promoted the Aza-Michael reaction of aliphatic amines with a variety of olefins to give the corresponding products in up to 97% yield. Royal Society of Chemistry 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6727/1/Waste%20Corn-Cob%20Cellulose%20Supported%20Copper%20Catalyst%20for%20Click%20and%20Aza-Michael%20Reactions.pdf Sarkar, Shaheen M. and Sultana, Tahnim and Biswas, Tapan Kumar and Lutfor, M. R. and M. M., Yusoff (2016) Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions. New Journal of Chemistry, 60 (1). pp. 497-502. ISSN 1144-0546. (Published) http://dx.doi.org/10.1039/C5NJ02437D DOI: 10.1039/C5NJ02437D |
| spellingShingle | Q Science (General) QD Chemistry Sarkar, Shaheen M. Sultana, Tahnim Biswas, Tapan Kumar Lutfor, M. R. M. M., Yusoff Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions |
| title | Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions |
| title_full | Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions |
| title_fullStr | Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions |
| title_full_unstemmed | Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions |
| title_short | Waste Corn-Cob Cellulose Supported Copper Catalyst for Click and Aza-Michael Reactions |
| title_sort | waste corn-cob cellulose supported copper catalyst for click and aza-michael reactions |
| topic | Q Science (General) QD Chemistry |
| url | http://umpir.ump.edu.my/id/eprint/6727/ http://umpir.ump.edu.my/id/eprint/6727/ http://umpir.ump.edu.my/id/eprint/6727/ http://umpir.ump.edu.my/id/eprint/6727/1/Waste%20Corn-Cob%20Cellulose%20Supported%20Copper%20Catalyst%20for%20Click%20and%20Aza-Michael%20Reactions.pdf |