Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions
A highly efficient photocatalytic dehydrogenative coupling (PDC) of amines to prepare value-added imines has been developed under the mild conditions. A complete conversion of benzylamine with a 99% selectivity of N-benzylidenebenzylamine could be obtained using the 2%Pt@g-C3N4 as photocatalyst in t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2022-12-01
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| Series: | Green Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666952821000704 |
| _version_ | 1797976377206505472 |
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| author | Peng Bai Guobao Yang Haijing Sun Xinli Tong |
| author_facet | Peng Bai Guobao Yang Haijing Sun Xinli Tong |
| author_sort | Peng Bai |
| collection | DOAJ |
| description | A highly efficient photocatalytic dehydrogenative coupling (PDC) of amines to prepare value-added imines has been developed under the mild conditions. A complete conversion of benzylamine with a 99% selectivity of N-benzylidenebenzylamine could be obtained using the 2%Pt@g-C3N4 as photocatalyst in the absence of hydrogen acceptor at room temperature. Moreover, the relationship between the physical properties of different photocatalysts and their activities has been discussed according to the characterization results of the XRD, BET, SEM, TEM, and XPS techniques. Next, the PDC of different amines have been further investigated, where ca. 70.2%–99.0% yields of corresponding imines were attained. Finally, based on the experimental results and heterogeneous catalytic principle, a possible reaction mechanism for the PDC of benzylamine is proposed. |
| first_indexed | 2024-04-11T04:49:58Z |
| format | Article |
| id | doaj.art-66c684710f464302aa8c972d3c3da262 |
| institution | Directory Open Access Journal |
| issn | 2666-9528 |
| language | English |
| last_indexed | 2024-04-11T04:49:58Z |
| publishDate | 2022-12-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Green Chemical Engineering |
| spelling | doaj.art-66c684710f464302aa8c972d3c3da2622022-12-27T04:40:04ZengKeAi Communications Co. Ltd.Green Chemical Engineering2666-95282022-12-0134313320Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditionsPeng Bai0Guobao Yang1Haijing Sun2Xinli Tong3School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, ChinaSchool of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, ChinaSchool of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, ChinaCorresponding author.; School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, ChinaA highly efficient photocatalytic dehydrogenative coupling (PDC) of amines to prepare value-added imines has been developed under the mild conditions. A complete conversion of benzylamine with a 99% selectivity of N-benzylidenebenzylamine could be obtained using the 2%Pt@g-C3N4 as photocatalyst in the absence of hydrogen acceptor at room temperature. Moreover, the relationship between the physical properties of different photocatalysts and their activities has been discussed according to the characterization results of the XRD, BET, SEM, TEM, and XPS techniques. Next, the PDC of different amines have been further investigated, where ca. 70.2%–99.0% yields of corresponding imines were attained. Finally, based on the experimental results and heterogeneous catalytic principle, a possible reaction mechanism for the PDC of benzylamine is proposed.http://www.sciencedirect.com/science/article/pii/S2666952821000704PhotocatalysisGreen synthesisBenzylamineAcceptorless dehydrogenationPlatinum |
| spellingShingle | Peng Bai Guobao Yang Haijing Sun Xinli Tong Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions Green Chemical Engineering Photocatalysis Green synthesis Benzylamine Acceptorless dehydrogenation Platinum |
| title | Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions |
| title_full | Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions |
| title_fullStr | Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions |
| title_full_unstemmed | Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions |
| title_short | Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions |
| title_sort | highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant free conditions |
| topic | Photocatalysis Green synthesis Benzylamine Acceptorless dehydrogenation Platinum |
| url | http://www.sciencedirect.com/science/article/pii/S2666952821000704 |
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