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Demirel N, Haber J, Ivlev SI, Meggers E. Improving the Configurational Stability of Chiral-at-Iron Catalysts Containing Two N-(2-Pyridyl)-Substituted N-Heterocyclic Carbene Ligands. Organometallics 2022; 41:3852-3860. [PMID: 36590905 PMCID: PMC9795549 DOI: 10.1021/acs.organomet.2c00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Indexed: 11/27/2022]
Abstract
Recently, we introduced the first example of chiral-at-iron catalysts in which two achiral N-(2-pyridyl)-substituted N-heterocyclic carbene (NHC) ligands in addition to two labile acetonitriles are coordinated around a central iron, to generate a stereogenic metal center [Hong Y.Chiral-at-Iron Catalyst: Expanding the Chemical Space for Asymmetric Earth-Abundant Metal Catalysis. J. Am. Chem. Soc.2019, 141, 4569-4572]. A more facile synthesis of such chiral-at-iron catalysts was developed, which omits the use of expensive silver salts and an elaborate electrochemical setup. Configurational robustness was improved by replacing the imidazol-2-ylidene carbene moieties with benzimidazol-2-ylidenes. The π-acceptor properties of the altered NHCs were investigated by Ganter's 77Se NMR method. The obtained benzimidazol-2-ylidene chiral-at-iron complex is an excellent catalyst for an asymmetric hetero-Diels-Alder reaction under open-flask conditions.
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2
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Bottari G, Afanasenko A, Castillo‐Garcia AA, Feringa BL, Barta K. Synthesis of Enantioenriched Amines by Iron‐Catalysed Amination of Alcohols Employing at Least One Achiral Substrate. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Giovanni Bottari
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Anastasiia Afanasenko
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | | | - Ben L. Feringa
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Katalin Barta
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
- Institute of Chemistry University of Graz Heinrichstrasse 28 8010 Graz Austria
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3
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Wu J, Tongdee S, Ammaiyappan Y, Darcel C. A Concise Route to Cyclic Amines from Nitroarenes and Ketoacids under Iron‐Catalyzed Hydrosilylation Conditions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100500] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiajun Wu
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Satawat Tongdee
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Yuvaraj Ammaiyappan
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Christophe Darcel
- UnivRennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
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Hong Y, Cui T, Ivlev S, Xie X, Meggers E. Chiral-at-Iron Catalyst for Highly Enantioselective and Diastereoselective Hetero-Diels-Alder Reaction. Chemistry 2021; 27:8557-8563. [PMID: 33860567 PMCID: PMC8251941 DOI: 10.1002/chem.202100703] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Indexed: 12/27/2022]
Abstract
This study demonstrates that chiral-at-iron complexes, in which all coordinated ligands are achiral and the overall chirality the consequence of a stereogenic iron center, are capable of catalyzing asymmetric transformations with very high enantioselectivities. The catalyst is based on a previously reported design (J. Am. Chem. Soc. 2017, 139, 4322), in which iron(II) is surrounded by two configurationally inert achiral bidentate N-(2-pyridyl)-substituted N-heterocyclic carbenes in a C2 -symmetric fashion and complemented by two labile acetonitriles. By replacing mesityl with more bulky 2,6-diisopropylphenyl substituents at the NHC ligands, the steric hindrance at the catalytic site was increased, thereby providing a markedly improved asymmetric induction. The new chiral-at-iron catalyst was applied to the inverse electron demand hetero-Diels-Alder reaction between β,γ-unsaturated α-ketoester and enol ethers provide 3,4-dihydro-2H-pyrans in high yields with excellent diastereoselectivities (up to 99 : 1 dr) and excellent enantioselectivities (up to 98 % ee). Other electron rich dienophiles are also suitable as demonstrated for a reaction with a vinyl azide.
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Affiliation(s)
- Yubiao Hong
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Strasse 435043MarburgGermany
| | - Tianjiao Cui
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Strasse 435043MarburgGermany
| | - Sergei Ivlev
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Strasse 435043MarburgGermany
| | - Xiulan Xie
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Strasse 435043MarburgGermany
| | - Eric Meggers
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Strasse 435043MarburgGermany
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5
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Steinlandt PS, Xie X, Ivlev S, Meggers E. Stereogenic-at-Iron Catalysts with a Chiral Tripodal Pentadentate Ligand. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Philipp S. Steinlandt
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Xiulan Xie
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Sergei Ivlev
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Eric Meggers
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
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6
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Wei D, Darcel C. Organophosphorus and Iron Catalysis: Good Partners for Hydrometalation of Olefins and Alkynes. J Org Chem 2020; 85:14298-14306. [PMID: 33169607 DOI: 10.1021/acs.joc.0c01637] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The last decades have seen an impressive development of iron complexes involving organophosphorus ligands applied in homogeneous catalyzed hydrometalation of olefins and alkynes. Two main topics will be covered in this JOCSynopsis: (i) an overview of the achievements in the area of iron-catalyzed hydrophosphination and then (ii) hydrosilylation, hydroborylation, and hydromagnesiation reactions promoted by catalysts based on organophosphorus ligands and iron.
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Affiliation(s)
- Duo Wei
- Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France
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7
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Liu Y, You T, Wang HX, Tang Z, Zhou CY, Che CM. Iron- and cobalt-catalyzed C(sp3)–H bond functionalization reactions and their application in organic synthesis. Chem Soc Rev 2020; 49:5310-5358. [DOI: 10.1039/d0cs00340a] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the developments in iron and cobalt catalyzed C(sp3)–H bond functionalization reactions with emphasis on their applications in organic synthesis, i.e. natural products and pharmaceuticals synthesis and/or modification.
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Affiliation(s)
- Yungen Liu
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
| | - Tingjie You
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- Hong Kong
- P. R. China
| | - Hai-Xu Wang
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- Hong Kong
- P. R. China
| | - Zhou Tang
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- Hong Kong
- P. R. China
| | - Cong-Ying Zhou
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- Hong Kong
- P. R. China
| | - Chi-Ming Che
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
- Department of Chemistry
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9
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Li M, Carreras V, Jalba A, Ollevier T. Asymmetric Diels–Alder Reaction of α,β-Unsaturated Oxazolidin-2-one Derivatives Catalyzed by a Chiral Fe(III)-Bipyridine Diol Complex. Org Lett 2018; 20:995-998. [DOI: 10.1021/acs.orglett.7b03939] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mao Li
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Virginie Carreras
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Angela Jalba
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Thierry Ollevier
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
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Huber R, Passera A, Mezzetti A. Iron(II)-Catalyzed Hydrogenation of Acetophenone with a Chiral, Pyridine-Based PNP Pincer Ligand: Support for an Outer-Sphere Mechanism. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00816] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Raffael Huber
- Department of Chemistry and
Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Alessandro Passera
- Department of Chemistry and
Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Antonio Mezzetti
- Department of Chemistry and
Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
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11
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Lauzon S, Keipour H, Gandon V, Ollevier T. Asymmetric Fe II-Catalyzed Thia-Michael Addition Reaction to α,β-Unsaturated Oxazolidin-2-one Derivatives. Org Lett 2017; 19:6324-6327. [PMID: 29152981 DOI: 10.1021/acs.orglett.7b03118] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A highly enantioselective FeII-catalyzed thia-Michael addition to α,β-unsaturated carbonyl derivatives was developed. The scope of the reaction was demonstrated with a selection of aromatic, heterocyclic and aliphatic thiols, and various Michael acceptors. The corresponding β-thioethers were obtained in good to excellent yields (up to 98%) and moderate to excellent enantioselectivities (up to 96:4 er). Unusual hepta-coordination of the metal and chelation to α,β-unsaturated oxazolidin-2-one derivatives allowed the construction of a coherent model rationalizing the enantioselective event. DFT calculations support the proposed model for observed stereoselectivities.
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Affiliation(s)
- Samuel Lauzon
- Département de chimie, Université Laval , 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Hoda Keipour
- Département de chimie, Université Laval , 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay , Orsay 91405 Cedex, France.,Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay , 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Thierry Ollevier
- Département de chimie, Université Laval , 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
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Keipour H, Ollevier T. Iron-Catalyzed Carbene Insertion Reactions of α-Diazoesters into Si–H Bonds. Org Lett 2017; 19:5736-5739. [DOI: 10.1021/acs.orglett.7b02488] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hoda Keipour
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
| | - Thierry Ollevier
- Département de Chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC G1V 0A6, Canada
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13
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Affiliation(s)
- Eike B. Bauer
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard St. Louis, MO 63121 USA
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14
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Smith SAM, Lagaditis PO, Lüpke A, Lough AJ, Morris RH. Unsymmetrical Iron P-NH-P′ Catalysts for the Asymmetric Pressure Hydrogenation of Aryl Ketones. Chemistry 2017; 23:7212-7216. [DOI: 10.1002/chem.201701254] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Samantha A. M. Smith
- Department of Chemistry; University of Toronto; 80 Saint George St. Toronto Ontario M5S3H6 Canada
| | - Paraskevi O. Lagaditis
- Department of Chemistry; University of Toronto; 80 Saint George St. Toronto Ontario M5S3H6 Canada
| | - Anne Lüpke
- Department of Chemistry; Johannes Gutenberg University, Mainz; Saarstraße 21 55122 Mainz Germany
| | - Alan J. Lough
- Department of Chemistry; University of Toronto; 80 Saint George St. Toronto Ontario M5S3H6 Canada
| | - Robert H. Morris
- Department of Chemistry; University of Toronto; 80 Saint George St. Toronto Ontario M5S3H6 Canada
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Abstract
Asymmetric reactions catalyzed by iron complexes have attracted considerable attention because iron is a ubiquitous, inexpensive, and environmentally benign metal. This overview charts the development and application of chiral iron bis(oxazoline) and pyridine-2,6-bis(oxazoline) catalysts through their most prominent and innovative uses in asymmetric catalysis, especially in Lewis acid and oxidation catalysis.
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Affiliation(s)
- Thierry Ollevier
- Département de chimie
- Pavillon Alexandre-Vachon
- Université Laval
- Québec (Qc) G1V 0A6
- Canada
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Jalba A, Levitre G, Keipour H, Lauzon S, Ollevier T. New chiral bis(oxazolinyl)bipyridine ligands and application in the iron catalyzed asymmetric hydrosilylation of ketones. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2015. [DOI: 10.17721/fujcv3i2p44-53] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
C2 symmetrical 6,6′-bis(oxazolinyl)-2,2′-bipyridine (bipybox) chiral ligands have been synthesized from readily available 2,2′-bipyridine. Catalytic asymmetric hydrosilylation of ketones was studied using this family of ligands in the presence of iron(II) acetate.
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