Iron/N-doped graphene nano-structured catalysts for general cyclopropanation of olefins
The first examples of heterogeneous Fe-catalysed cyclopropanation reactions are presented. Pyrolysis of in situ -generated iron/phenanthroline complexes in the presence of a carbonaceous material leads to specific supported nanosized iron particles, which are effective catalysts for carbene transfer...
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| Veröffentlicht in: | Chemical science (Cambridge) 2020-06, Vol.11 (24), p.6217-6221 |
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| creator | Sarkar, Abhijnan Formenti, Dario Ferretti, Francesco Kreyenschulte, Carsten Bartling, Stephan Junge, Kathrin Beller, Matthias Ragaini, Fabio |
| description | The first examples of heterogeneous Fe-catalysed cyclopropanation reactions are presented. Pyrolysis of
in situ
-generated iron/phenanthroline complexes in the presence of a carbonaceous material leads to specific supported nanosized iron particles, which are effective catalysts for carbene transfer reactions. Using olefins as substrates, cyclopropanes are obtained in high yields and moderate diastereoselectivities. The developed protocol is scalable and the activity of the recycled catalyst after deactivation can be effectively restored using an oxidative reactivation protocol under mild conditions.
An Fe-based heterogeneous catalyst allows for the synthesis of cyclopropanes
via
a carbene transfer reaction, a transformation usually belonging to the homogeneous domain. |
| doi_str_mv | 10.1039/d0sc01650k |
| format | Article |
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in situ
-generated iron/phenanthroline complexes in the presence of a carbonaceous material leads to specific supported nanosized iron particles, which are effective catalysts for carbene transfer reactions. Using olefins as substrates, cyclopropanes are obtained in high yields and moderate diastereoselectivities. The developed protocol is scalable and the activity of the recycled catalyst after deactivation can be effectively restored using an oxidative reactivation protocol under mild conditions.
An Fe-based heterogeneous catalyst allows for the synthesis of cyclopropanes
via
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in situ
-generated iron/phenanthroline complexes in the presence of a carbonaceous material leads to specific supported nanosized iron particles, which are effective catalysts for carbene transfer reactions. Using olefins as substrates, cyclopropanes are obtained in high yields and moderate diastereoselectivities. The developed protocol is scalable and the activity of the recycled catalyst after deactivation can be effectively restored using an oxidative reactivation protocol under mild conditions.
An Fe-based heterogeneous catalyst allows for the synthesis of cyclopropanes
via
a carbene transfer reaction, a transformation usually belonging to the homogeneous domain.</description><subject>Activation</subject><subject>Alkenes</subject><subject>Carbonaceous materials</subject><subject>Catalysts</subject><subject>Coordination compounds</subject><subject>Cyclopropane</subject><subject>Deactivation</subject><subject>Graphene</subject><subject>Iron</subject><subject>Organic compounds</subject><subject>Pyrolysis</subject><subject>Substrates</subject><issn>2041-6520</issn><issn>2041-6539</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp90c9LwzAUB_AgihtzF-9KxYsIdfnRpOlR5q_h0IOKx5Llx-zskpq0h_33RjcneDCXBN4nj8f3AXCI4AWCpBgpGCREjML3HdDHMEMpo6TY3b4x7IFhCAsYDyGI4nwf9AguKIm_-uB14p0dPaTKNVolcy-aN211YoV1aWh9J9vOx4IUrahXoQ2JcT6ZR-JFnciVrF3jXSOsaCtnE2cSV2tT2XAA9oyogx5u7gF4ubl-Ht-l08fbyfhymkoKWZsWiOSYzBBXjENeIIyVwSyjEPOCUSlzaHKDci4wFlLOqISGK5IJkrNCS4HIAJyt-8YxPjod2nJZBanrWljtulDiLMsYjM1JpKd_6MJ13sbpokIMc8Qpjup8raR3IXhtysZXS-FXJYLlV-LlFXwafyd-H_HxpmU3W2q1pT_5RnCyBj7IbfV3ZWWjTDRH_xnyCTH7j4g</recordid><startdate>20200628</startdate><enddate>20200628</enddate><creator>Sarkar, Abhijnan</creator><creator>Formenti, Dario</creator><creator>Ferretti, Francesco</creator><creator>Kreyenschulte, Carsten</creator><creator>Bartling, Stephan</creator><creator>Junge, Kathrin</creator><creator>Beller, Matthias</creator><creator>Ragaini, Fabio</creator><general>Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-5709-0965</orcidid><orcidid>https://orcid.org/0000-0001-5901-7235</orcidid><orcidid>https://orcid.org/0000-0001-8672-4111</orcidid><orcidid>https://orcid.org/0000-0001-7044-8888</orcidid><orcidid>https://orcid.org/0000-0002-2371-4909</orcidid><orcidid>https://orcid.org/0000-0002-7803-322X</orcidid></search><sort><creationdate>20200628</creationdate><title>Iron/N-doped graphene nano-structured catalysts for general cyclopropanation of olefins</title><author>Sarkar, Abhijnan ; Formenti, Dario ; Ferretti, Francesco ; Kreyenschulte, Carsten ; Bartling, Stephan ; Junge, Kathrin ; Beller, Matthias ; Ragaini, Fabio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c506t-913723b18d68089122df2645028965cc70f7f178a22accb5c0f8d34a3769eca13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Activation</topic><topic>Alkenes</topic><topic>Carbonaceous materials</topic><topic>Catalysts</topic><topic>Coordination compounds</topic><topic>Cyclopropane</topic><topic>Deactivation</topic><topic>Graphene</topic><topic>Iron</topic><topic>Organic compounds</topic><topic>Pyrolysis</topic><topic>Substrates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sarkar, Abhijnan</creatorcontrib><creatorcontrib>Formenti, Dario</creatorcontrib><creatorcontrib>Ferretti, Francesco</creatorcontrib><creatorcontrib>Kreyenschulte, Carsten</creatorcontrib><creatorcontrib>Bartling, Stephan</creatorcontrib><creatorcontrib>Junge, Kathrin</creatorcontrib><creatorcontrib>Beller, Matthias</creatorcontrib><creatorcontrib>Ragaini, Fabio</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><jtitle>Chemical science (Cambridge)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sarkar, Abhijnan</au><au>Formenti, Dario</au><au>Ferretti, Francesco</au><au>Kreyenschulte, Carsten</au><au>Bartling, Stephan</au><au>Junge, Kathrin</au><au>Beller, Matthias</au><au>Ragaini, Fabio</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iron/N-doped graphene nano-structured catalysts for general cyclopropanation of olefins</atitle><jtitle>Chemical science (Cambridge)</jtitle><addtitle>Chem Sci</addtitle><date>2020-06-28</date><risdate>2020</risdate><volume>11</volume><issue>24</issue><spage>6217</spage><epage>6221</epage><pages>6217-6221</pages><issn>2041-6520</issn><eissn>2041-6539</eissn><abstract>The first examples of heterogeneous Fe-catalysed cyclopropanation reactions are presented. Pyrolysis of
in situ
-generated iron/phenanthroline complexes in the presence of a carbonaceous material leads to specific supported nanosized iron particles, which are effective catalysts for carbene transfer reactions. Using olefins as substrates, cyclopropanes are obtained in high yields and moderate diastereoselectivities. The developed protocol is scalable and the activity of the recycled catalyst after deactivation can be effectively restored using an oxidative reactivation protocol under mild conditions.
An Fe-based heterogeneous catalyst allows for the synthesis of cyclopropanes
via
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| source | DOAJ Directory of Open Access Journals; PubMed Central Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central |
| subjects | Activation Alkenes Carbonaceous materials Catalysts Coordination compounds Cyclopropane Deactivation Graphene Iron Organic compounds Pyrolysis Substrates |
| title | Iron/N-doped graphene nano-structured catalysts for general cyclopropanation of olefins |
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