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On the Origin of the Promoting Effect Exerted by Magnesium in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine
[Image: see text] The reaction of magnesium or zinc amides with alkyl or benzyl halides is an attractive approach to make C–N bonds, especially for electron-poor organic halides. The magnesium-promoted preparation of hindered non-nucleophilic amine (N,N-diisopropylethylamine) from ethyl chloride and...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7689953/ https://www.ncbi.nlm.nih.gov/pubmed/33251426 http://dx.doi.org/10.1021/acsomega.0c04188 |
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author | Hong, Zeng Ruan, Jiancheng Chen, Xinzhi Qian, Chao Ge, Xin Zhou, Shaodong |
author_facet | Hong, Zeng Ruan, Jiancheng Chen, Xinzhi Qian, Chao Ge, Xin Zhou, Shaodong |
author_sort | Hong, Zeng |
collection | PubMed |
description | [Image: see text] The reaction of magnesium or zinc amides with alkyl or benzyl halides is an attractive approach to make C–N bonds, especially for electron-poor organic halides. The magnesium-promoted preparation of hindered non-nucleophilic amine (N,N-diisopropylethylamine) from ethyl chloride and zinc diisopropylamide has been studied. In this paper, instead of the application scope of this method, we focused on the mechanisms of the catalytic processes and the associated electronic origins. According to the calculations, the C–N coupling process in all selected systems proceed preferably in an ethylium-transfer mode. Further, rather than undergoing the Grignard reaction route, the more pronounced electronic interactions within the transition structure as induced by the “innocent” magnesium atom should be responsible for the observed high catalytic activity of the Mg/ZnCl(2) combination. |
format | Online Article Text |
id | pubmed-7689953 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-76899532020-11-27 On the Origin of the Promoting Effect Exerted by Magnesium in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine Hong, Zeng Ruan, Jiancheng Chen, Xinzhi Qian, Chao Ge, Xin Zhou, Shaodong ACS Omega [Image: see text] The reaction of magnesium or zinc amides with alkyl or benzyl halides is an attractive approach to make C–N bonds, especially for electron-poor organic halides. The magnesium-promoted preparation of hindered non-nucleophilic amine (N,N-diisopropylethylamine) from ethyl chloride and zinc diisopropylamide has been studied. In this paper, instead of the application scope of this method, we focused on the mechanisms of the catalytic processes and the associated electronic origins. According to the calculations, the C–N coupling process in all selected systems proceed preferably in an ethylium-transfer mode. Further, rather than undergoing the Grignard reaction route, the more pronounced electronic interactions within the transition structure as induced by the “innocent” magnesium atom should be responsible for the observed high catalytic activity of the Mg/ZnCl(2) combination. American Chemical Society 2020-11-11 /pmc/articles/PMC7689953/ /pubmed/33251426 http://dx.doi.org/10.1021/acsomega.0c04188 Text en © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Hong, Zeng Ruan, Jiancheng Chen, Xinzhi Qian, Chao Ge, Xin Zhou, Shaodong On the Origin of the Promoting Effect Exerted by Magnesium in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine |
title | On the Origin of the Promoting Effect Exerted by Magnesium
in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine |
title_full | On the Origin of the Promoting Effect Exerted by Magnesium
in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine |
title_fullStr | On the Origin of the Promoting Effect Exerted by Magnesium
in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine |
title_full_unstemmed | On the Origin of the Promoting Effect Exerted by Magnesium
in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine |
title_short | On the Origin of the Promoting Effect Exerted by Magnesium
in the ZnCl(2)-Catalyzed Synthesis of N,N-Diisopropylethylamine |
title_sort | on the origin of the promoting effect exerted by magnesium
in the zncl(2)-catalyzed synthesis of n,n-diisopropylethylamine |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7689953/ https://www.ncbi.nlm.nih.gov/pubmed/33251426 http://dx.doi.org/10.1021/acsomega.0c04188 |
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