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Iron/N-doped graphene nano-structured catalysts for general cyclopropanation of olefins.

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.

SUBMITTER: Sarkar A

PROVIDER: S-EPMC7480268 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Iron/N-doped graphene nano-structured catalysts for general cyclopropanation of olefins.

Sarkar Abhijnan A Formenti Dario D Ferretti Francesco F Kreyenschulte Carsten C Bartling Stephan S Junge Kathrin K Beller Matthias M Ragaini Fabio F

Chemical science 20200608 24

The first examples of heterogeneous Fe-catalysed cyclopropanation reactions are presented. Pyrolysis of <i>in situ</i>-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 cataly ...[more]

PMID: 32953016

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