1
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McGhie L, Marotta A, Loftus PO, Seeberger PH, Funes-Ardoiz I, Molloy JJ. Photogeneration of α-Bimetalloid Radicals via Selective Activation of Multifunctional C1 Units. J Am Chem Soc 2024; 146:15850-15859. [PMID: 38805091 PMCID: PMC11177267 DOI: 10.1021/jacs.4c02261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/12/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024]
Abstract
Light-driven strategies that enable the chemoselective activation of a specific bond in multifunctional systems are comparatively underexplored in comparison to transition-metal-based technologies, yet desirable when considering the controlled exploration of chemical space. With the current drive to discover next-generation therapeutics, reaction design that enables the strategic incorporation of an sp3 carbon center, containing multiple synthetic handles for the subsequent exploration of chemical space would be highly enabling. Here, we describe the photoactivation of ambiphilic C1 units to generate α-bimetalloid radicals using only a Lewis base and light source to directly activate the C-I bond. Interception of these transient radicals with various SOMOphiles enables the rapid synthesis of organic scaffolds containing synthetic handles (B, Si, and Ge) for subsequent orthogonal activation. In-depth theoretical and mechanistic studies reveal the prominent role of 2,6-lutidine in forming a photoactive charge transfer complex and in stabilizing in situ generated iodine radicals, as well as the influential role of the boron p-orbital in the activation/weakening of the C-I bond. This simple and efficient methodology enabled expedient access to functionalized 3D frameworks that can be further derivatized using available technologies for C-B and C-Si bond activation.
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Affiliation(s)
- Lewis McGhie
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
- Department
of Chemistry and Biochemistry, Freie Universität
Berlin, Berlin 14195, Germany
| | - Alessandro Marotta
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
- Department
of Chemistry and Biochemistry, Freie Universität
Berlin, Berlin 14195, Germany
| | - Patrick O. Loftus
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
| | - Peter H. Seeberger
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
- Department
of Chemistry and Biochemistry, Freie Universität
Berlin, Berlin 14195, Germany
| | - Ignacio Funes-Ardoiz
- Department
of Chemistry, Instituto de Investigación Química de
la Universidad de La Rioja (IQUR), Universidad
de La Rioja Madre de Dios 53, Logroño 26004, Spain
| | - John J. Molloy
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, Potsdam 14476, Germany
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2
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Fernández E. α-Boryl Carbanions: The Influence of Geminal Heteroatoms in C-C Bond Formation. CHEM REC 2024; 24:e202300349. [PMID: 38308376 DOI: 10.1002/tcr.202300349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/12/2024] [Indexed: 02/04/2024]
Abstract
The wide applications of alpha-boryl carbanions in selective coupling with organohalides, imines/carbonyls and conjugated unsaturated substrates has become an interesting tool for organic synthesis. Strategically, the inclusion of heteroatoms, such as Si, S, N, F, Cl, Br and I in the alpha position opens a new venue towards multifunctionalities in molecular design. Here, a conceptual and practical view on powerful carbanions, containing α-silicoboron, α-thioboron, α-haloboron and α-aminoboron is given, as well as a prespective on their efficient application for selective electrophilic trapping.
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Affiliation(s)
- Elena Fernández
- Dept. Química Física i Inorgànica, University Rovira i Virgili, Tarragona, Spain
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3
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Hu J, Tang M, Wang J, Wu Z, Friedrich A, Marder TB. Photocatalyzed Borylcyclopropanation of Alkenes with a (Diborylmethyl)iodide Reagent. Angew Chem Int Ed Engl 2023; 62:e202305175. [PMID: 37527975 DOI: 10.1002/anie.202305175] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/03/2023]
Abstract
Cyclopropane skeletons play a prominent role in the development of organic synthesis and pharmaceutical chemistry. Herein, we report the design and synthesis of a stable, multifunctional (diborylmethyl)iodide reagent (CHI(Bpin)2 ) for the photoinduced cyclopropanation of alkenes, providing an array of 1,2-substituted cyclopropylboronates in good yields. This α-haloboronic ester can be readily synthesized on a multigram scale from commercially available starting materials. Furthermore, the protocol displays high chemo- and diastereoselectivity, excellent functional-group tolerance, and allows for late-stage borylcyclopropanation of complex molecules. Mechanistic studies reveal that the borylcyclopropanation proceeds through a radical addition/polar cyclization pathway mediated by the photocatalyst fac-Ir(ppy)3 and visible light.
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Affiliation(s)
- Jiefeng Hu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816 Jiangsu, China
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland, 97074, Würzburg, Germany
| | - Man Tang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816 Jiangsu, China
| | - Jing Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816 Jiangsu, China
| | - Zhu Wu
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland, 97074, Würzburg, Germany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland, 97074, Würzburg, Germany
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4
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Xie T, Chen L, Shen Z, Xu S. Simple Ether-Directed Enantioselective C(sp 3 )-H Borylation of Cyclopropanes Enabled by Iridium Catalysis. Angew Chem Int Ed Engl 2023; 62:e202300199. [PMID: 36762972 DOI: 10.1002/anie.202300199] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 02/11/2023]
Abstract
Reported here is an efficient and simple ether-directed iridium-catalyzed enantioselective C(sp3 )-H borylation of cyclopropanes. Various functional groups were well-tolerated, affording a vast array of chiral cyclopropanes with high enantioselectivities. We also demonstrated that the turnover numbers of the current reaction could be up to 335.
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Affiliation(s)
- Tian Xie
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Lili Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Zhenlu Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
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5
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Teresa J, Velado M, Fernández de la Pradilla R, Viso A, Lozano B, Tortosa M. Enantioselective Suzuki cross-coupling of 1,2-diboryl cyclopropanes. Chem Sci 2023; 14:1575-1581. [PMID: 36794195 PMCID: PMC9906671 DOI: 10.1039/d2sc05789a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023] Open
Abstract
Herein, we describe the catalytic enantioselective cross-coupling of 1,2-bisboronic esters. Prior work on group specific cross coupling is limited to the use of geminal bis-boronates. This desymmetrization provides a novel approach to prepare enantioenriched cyclopropyl boronates with three contiguous stereocenters, that could be further derivatized through selective functionalization of the carbon-boron bond. Our results suggest that transmetallation, which is the enantiodetermining step, takes place with retention of stereochemistry at carbon.
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Affiliation(s)
- Javier Teresa
- Organic Chemistry Department, Center for Innovation in Advanced Chemistry (ORFEO-CINQA), Universidad Autónoma de Madrid (UAM) 28049 Madrid Spain
| | - Marina Velado
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
| | | | - Alma Viso
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
| | - Blanca Lozano
- Organic Chemistry Department, Center for Innovation in Advanced Chemistry (ORFEO-CINQA), Universidad Autónoma de Madrid (UAM) 28049 Madrid Spain
| | - Mariola Tortosa
- Organic Chemistry Department, Center for Innovation in Advanced Chemistry (ORFEO-CINQA), Universidad Autónoma de Madrid (UAM) 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid (UAM) 28049 Madrid Spain
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6
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Thai-Savard L, Sayes M, Perreault-Dufour J, Hong G, Wells LA, Kozlowski MC, Charette AB. Organocatalyzed Visible Light-Mediated gem-Borosilylcyclopropanation. J Org Chem 2023; 88:1515-1521. [PMID: 36655845 PMCID: PMC10106276 DOI: 10.1021/acs.joc.2c02535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The borosilylcyclopropanation of styrene derivatives using a (diiodo(trimethylsilyl)methyl)boronic ester carbene precursor is reported herein. The key reagent was synthesized in a 4-step sequence using inexpensive and commercially available starting materials. This method enabled the preparation of novel 1,1,2-tri- and 1,1,2,2-tetrasubstituted borosilylcyclopropanes up to excellent yields and diastereoselectivity. The reaction is organocatalyzed by eosin Y in the presence of visible light. A mechanism consistent with the experimental observations was postulated based on density functional theory calculations. The versatility of these entities was highlighted through post-functionalization reactions.
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Affiliation(s)
- Léa Thai-Savard
- Centre in Green Chemistry and Catalysis, Centre for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Morgane Sayes
- Centre in Green Chemistry and Catalysis, Centre for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Josiane Perreault-Dufour
- Centre in Green Chemistry and Catalysis, Centre for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Gang Hong
- Centre in Green Chemistry and Catalysis, Centre for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Lucille A. Wells
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA
| | - Marisa C. Kozlowski
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA
| | - André B. Charette
- Centre in Green Chemistry and Catalysis, Centre for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
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7
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Pavlíčková T, Stöckl Y, Marek I. Synthesis and Functionalization of Tertiary Propargylic Boronic Esters by Alkynyllithium-Mediated 1,2-Metalate Rearrangement of Borylated Cyclopropanes. Org Lett 2022; 24:8901-8906. [PMID: 36446049 PMCID: PMC9791689 DOI: 10.1021/acs.orglett.2c03756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Indexed: 11/30/2022]
Abstract
Implementing the use of alkynyllithium reagents in a stereospecific 1,2-metalate rearrangement-mediated ring opening of polysubstituted cyclopropyl boronic esters provides a variety of tertiary pinacol boranes bearing adjacent tertiary or quaternary carbon stereocenters with high levels of diastereomeric purity. The potential of this strategy was demonstrated through a selection of α- and γ-functionalization of the propargyl boronic esters.
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Affiliation(s)
- Tereza Pavlíčková
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, Haifa 3200009, Israel
| | - Yannick Stöckl
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, Haifa 3200009, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, Haifa 3200009, Israel
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8
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Augustin AU, Di Silvio S, Marek I. Borylated Cyclopropanes as Spring-Loaded Entities: Access to Vicinal Tertiary and Quaternary Carbon Stereocenters in Acyclic Systems. J Am Chem Soc 2022; 144:16298-16302. [PMID: 36041738 PMCID: PMC9479080 DOI: 10.1021/jacs.2c07394] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Herein, we present the formation of acyclic frameworks
bearing
two consecutive stereocenters of either tertiary or quaternary nature
starting from easily accessible cyclopropenes. This holistic approach
involves a regio- and diastereoselective hydro- or carboborylation
of substituted cyclopropenyl esters. Formation of boronate complexes
of the latter via the addition of nucleophiles and subsequent stereospecific
1,2-migration with carbon–carbon bond cleavage delivered the
title compounds.
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Affiliation(s)
- André U Augustin
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 3200009, Israel
| | - Sergio Di Silvio
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 3200009, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 3200009, Israel
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9
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Iwamoto H, Ozawa Y, Hayashi Y, Imamoto T, Ito H. Conformationally Fixed Chiral Bisphosphine Ligands by Steric Modulators on the Ligand Backbone: Selective Synthesis of Strained 1,2-Disubstituted Chiral cis-Cyclopropanes. J Am Chem Soc 2022; 144:10483-10494. [DOI: 10.1021/jacs.2c02745] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hiroaki Iwamoto
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yu Ozawa
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yuta Hayashi
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Tsuneo Imamoto
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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10
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Michalland J, Casaretto N, Zard SZ. A Modular Access to 1,2‐ and 1,3‐Disubstituted Cyclobutylboronic Esters by Consecutive Radical Additions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jean Michalland
- Laboratoire de Synthèse Organique CNRS UMR 7652 Ecole polytechnique 91128 Palaiseau Cedex France
| | - Nicolas Casaretto
- Laboratoire de Chimie Moleculaire CNRS UMR 9168 Ecole polytechnique 91128 Palaiseau Cedex France
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique CNRS UMR 7652 Ecole polytechnique 91128 Palaiseau Cedex France
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11
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Taillemaud S, Charette AB. Spectroscopic Characterization of Heterohalogenic Dihalomethylzinc Carbenoids: Application to a More Efficient Chlorocyclopropanation Reaction. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sylvain Taillemaud
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - André B. Charette
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
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12
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Michalland J, Casaretto N, Zard SZ. A Modular Access to 1,2- and 1,3-Disubstituted Cyclobutylboronic Esters by Consecutive Radical Additions. Angew Chem Int Ed Engl 2021; 61:e202113333. [PMID: 34716652 DOI: 10.1002/anie.202113333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Indexed: 01/22/2023]
Abstract
A modular approach to substituted cyclobutylboronic esters is described. It proceeds by successive intermolecular radical additions of xanthates to pinacolato 1-cyclobutenylboronate and to pinacolato bicyclo[1.1.0]but-1-ylboronate. Success hinges on tuning the stability of the α-boryl radical by exploiting the stabilizing influence of the trivalent boronic ester and the slightly destabilizing cyclobutane, which increases the σ-character of the radical. Reductive removal of the xanthate group finally provides a range of 1,2- and 1,3-disubstituted cyclobutylboronic esters. The contrast with cyclopropylboronic esters is striking, since the strong destabilization by the highly strained cyclopropane ring allows the first radical addition to take place but not the second. Furthermore, the first adducts are geminal xanthyl boronic esters that can be converted into cyclobutanones. This chemistry furnishes cyclobutylboronic esters that would be quite difficult to obtain otherwise and thus complements existing methods.
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Affiliation(s)
- Jean Michalland
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole polytechnique, 91128, Palaiseau Cedex, France
| | - Nicolas Casaretto
- Laboratoire de Chimie Moleculaire, CNRS UMR 9168, Ecole polytechnique, 91128, Palaiseau Cedex, France
| | - Samir Z Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole polytechnique, 91128, Palaiseau Cedex, France
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13
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Chowdhury R, Mendoza A. N-Hydroxyphthalimidyl diazoacetate (NHPI-DA): a modular methylene linchpin for the C-H alkylation of indoles. Chem Commun (Camb) 2021; 57:4532-4535. [PMID: 33956022 PMCID: PMC8101283 DOI: 10.1039/d1cc01026c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 03/29/2021] [Indexed: 12/18/2022]
Abstract
Despite the extensive studies on the reactions between conventional diazocompounds and indoles, these are still limited by the independent synthesis of the carbene precursors, the specific catalysts, and the required multi-step manipulation of the products. In this work, we explore redox-active carbenes in the expedited and divergent synthesis of functionalized indoles. NHPI-DA displays unusual efficiency and selectivity to yield insertion products that can be swiftly elaborated into boron and carbon substituents that are particularly problematic in carbene-mediated reactions.
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Affiliation(s)
- Rajdip Chowdhury
- Department of Organic Chemistry, Arrhenius laboratory, Stockholm University, 106 91 Stockholm, Sweden.
| | - Abraham Mendoza
- Department of Organic Chemistry, Arrhenius laboratory, Stockholm University, 106 91 Stockholm, Sweden.
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14
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Cohen Y, Augustin AU, Levy L, Jones PG, Werz DB, Marek I. Regio- and Diastereoselective Copper-Catalyzed Carbomagnesiation for the Synthesis of Penta- and Hexa-Substituted Cyclopropanes. Angew Chem Int Ed Engl 2021; 60:11804-11808. [PMID: 33742749 DOI: 10.1002/anie.202102509] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Indexed: 11/07/2022]
Abstract
Despite the highly strained nature of cyclopropanes possessing three vicinal quaternary carbon stereocenters, the regio- and diastereoselective copper-catalyzed carbomagnesiation reaction of cyclopropenes provides an easy and efficient access to these novel persubstituted cyclopropyl cores with a complete regio- and diastereoselectivity.
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Affiliation(s)
- Yair Cohen
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa, 3200009, Israel
| | - André U Augustin
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa, 3200009, Israel
| | - Laura Levy
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa, 3200009, Israel
| | - Peter G Jones
- Technische Universität Braunschweig, Institute of Inorganic and Analytical Chemistry, Hagenring 30, 38106, Braunschweig, Germany
| | - Daniel B Werz
- Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106, Braunschweig, Germany
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa, 3200009, Israel
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15
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Cohen Y, Augustin AU, Levy L, Jones PG, Werz DB, Marek I. Regio‐ and Diastereoselective Copper‐Catalyzed Carbomagnesiation for the Synthesis of Penta‐ and Hexa‐Substituted Cyclopropanes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102509] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yair Cohen
- Schulich Faculty of Chemistry Technion—Israel Institute of Technology Technion City Haifa 3200009 Israel
| | - André U. Augustin
- Schulich Faculty of Chemistry Technion—Israel Institute of Technology Technion City Haifa 3200009 Israel
| | - Laura Levy
- Schulich Faculty of Chemistry Technion—Israel Institute of Technology Technion City Haifa 3200009 Israel
| | - Peter G. Jones
- Technische Universität Braunschweig Institute of Inorganic and Analytical Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Daniel B. Werz
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Ilan Marek
- Schulich Faculty of Chemistry Technion—Israel Institute of Technology Technion City Haifa 3200009 Israel
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16
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Xie Y, Huang W, Qin S, Fu S, Liu B. Catalytic radical cascade cyclization of alkene-tethered enones to fused bicyclic cyclopropanols. Org Chem Front 2021. [DOI: 10.1039/d1qo01312b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fused bicyclic cyclopropanols were achieved via an unprecedented HAT-triggered radical cascade reaction of alkene-tethered enones in the presence of an iron catalyst.
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Affiliation(s)
- Ying Xie
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China
| | - Wei Huang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Song Qin
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Shaomin Fu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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17
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Zubrytski DM, Elek GZ, Lopp M, Kananovich DG. Generation of Mixed Anhydrides via Oxidative Fragmentation of Tertiary Cyclopropanols with Phenyliodine(III) Dicarboxylates. Molecules 2020; 26:molecules26010140. [PMID: 33396847 PMCID: PMC7794720 DOI: 10.3390/molecules26010140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/24/2020] [Accepted: 12/26/2020] [Indexed: 11/20/2022] Open
Abstract
Oxidative fragmentation of tertiary cyclopropanols with phenyliodine(III) dicarboxylates in aprotic solvents (dichloromethane, chloroform, toluene) produces mixed anhydrides. The fragmentation reaction is especially facile with phenyliodine(III) reagents bearing electron-withdrawing carboxylate ligands (trifluoroacetyl, 2,4,6-trichlorobenzoyl, 3-nitrobenzoyl), and affords 95−98% yields of the corresponding mixed anhydride products. The latter can be straightforwardly applied for the acylation of various nitrogen, oxygen and sulfur-centered nucleophiles (primary and secondary amines, hydroxylamines, primary alcohols, phenols, thiols). Intramolecular acylation yielding macrocyclic lactones can also be performed. The developed transformation has bolstered the synthetic utility of cyclopropanols as pluripotent intermediates in diversity-oriented synthesis of bioactive natural products and their synthetic congeners. For example, it was successfully applied for the last-stage modification of a cyclic peptide to produce a precursor of a known histone deacetylase inhibitor.
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Affiliation(s)
- Dzmitry M. Zubrytski
- Department of Organic Chemistry, Belarusian State University, Leningradskaya 14, 220050 Minsk, Belarus;
| | - Gábor Zoltán Elek
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
| | - Margus Lopp
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
| | - Dzmitry G. Kananovich
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
- Correspondence: ; Tel.: +372-6204382
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18
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Mizoguchi H, Seriu M, Sakakura A. Synthesis of functionalized cyclopropylboronic esters based on a 1,2-metallate rearrangement of cyclopropenylboronate. Chem Commun (Camb) 2020; 56:15545-15548. [PMID: 33241828 DOI: 10.1039/d0cc07134j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A procedure converting tribromocyclopropane to densely functionalized β-selenocyclopropylboronic ester using the 1,2-metallate rearrangement of a boron ate-complex has been developed. Treatment of an in situ-generated cyclopropenylboronic ester ate-complex with phenylselenenyl chloride triggered stereospecific rearrangement to produce functionalized cyclopropanes. DFT calculations for 1,2-metallate rearrangement suggested that the reaction proceeds through a seleniranium intermediate.
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Affiliation(s)
- Haruki Mizoguchi
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
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19
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Sun X, Gu P, Qin J, Su Y. Rhodium-catalysed diastereo- and enantio-selective cyclopropanation of α-boryl styrenes. Chem Commun (Camb) 2020; 56:12379-12382. [PMID: 32930681 DOI: 10.1039/d0cc02549f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A rhodium-catalyzed diastereo- and enantio-selective cyclopropanation of α-boryl styrenes with α-diazoarylacetates was established. Rh2(S-PTTL)4 (0.2 mol%) was found to be effective for the conversion, and 21 diastereopure cyclopropylboronates were prepared in high yields with excellent enantioselectivity (ee up to 99%).
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Affiliation(s)
- Xiao Sun
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.
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20
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Kleban I, Krokhmaliuk Y, Reut S, Shuvakin S, Pendyukh VV, Khyzhan OI, Yarmoliuk DS, Tymtsunik AV, Rassukana YV, Grygorenko OO. Multigram Synthesis of Heterabicyclo[n.1.0]alkan‐1‐yl Trifluoroborates. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ihor Kleban
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska Street 5 02094 Kyiv Ukraine
| | - Yevhen Krokhmaliuk
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Sofiia Reut
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Serhii Shuvakin
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
| | | | | | | | - Andriy V. Tymtsunik
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Prospect Peremogy 37 03056 Kyiv Ukraine
| | - Yuliya V. Rassukana
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska Street 5 02094 Kyiv Ukraine
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Prospect Peremogy 37 03056 Kyiv Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd. Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 01601 Kyiv Ukraine
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21
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Huang F, Zheng X, Lin X, Ding L, Zhuo Q, Wen TB, Zhang H, Xia H. Extension of the Simmons-Smith reaction to metal-carbynes: efficient synthesis of metallacyclopropenes with σ-aromaticity. Chem Sci 2020; 11:10159-10166. [PMID: 34094279 PMCID: PMC8162146 DOI: 10.1039/d0sc03215h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/31/2020] [Indexed: 12/25/2022] Open
Abstract
The Simmons-Smith reaction offers a direct route for conversion of an alkene into a cyclopropane with a zinc carbenoid as the active intermediate. Zinc carbenoids, however, have never delivered a methylene unit to substrates with metal-carbon multiple bonds. Herein, we describe this type of reaction and the construction of three-membered rings has now been applied in organometallic systems by combining classical zinc carbenoid reagents with a range of structurally and electronically diverse metal carbynes. A variety of metallacyclopropene derivatives prepared in this way represent rare examples with σ-aromaticity in an unsaturated three-membered ring. The structures of such products are supported by experimental observations and theoretical calculations.
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Affiliation(s)
- Fanping Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Xuejuan Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Xinlei Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Linting Ding
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Qingde Zhuo
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Ting Bin Wen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Hong Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology Shenzhen 518055 China
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22
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Rivera RM, Jang Y, Poteat CM, Lindsay VNG. General Synthesis of Cyclopropanols via Organometallic Addition to 1-Sulfonylcyclopropanols as Cyclopropanone Precursors. Org Lett 2020; 22:6510-6515. [PMID: 32806174 DOI: 10.1021/acs.orglett.0c02303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The addition of organometallic reagents to ketones constitutes one of the most straightforward synthetic approaches to tertiary alcohols. However, due to the absence of a well-behaved class of cyclopropanone surrogates accessible in enantioenriched form, such a trivial synthetic disconnection has received very little attention in the literature for the formation of tertiary cyclopropanols. In this work, we report a simple and high-yielding synthesis of 1-substituted cyclopropanols via the addition of diverse organometallic reagents to 1-phenylsulfonylcyclopropanols, acting here as in situ precursors of the corresponding cyclopropanones. The transformation is shown to be amenable to sp-, sp2-, or sp3-hybridized organometallic C-nucleophiles under mild conditions, and the use of enantioenriched substrates led to highly diastereoselective additions and the formation of optically active cyclopropanols.
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Affiliation(s)
- Roger Machín Rivera
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Yujin Jang
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Christopher M Poteat
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Vincent N G Lindsay
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
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23
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Wu FP, Luo X, Radius U, Marder TB, Wu XF. Copper-Catalyzed Synthesis of Stereodefined Cyclopropyl Bis(boronates) from Alkenes with CO as the C1 Source. J Am Chem Soc 2020; 142:14074-14079. [DOI: 10.1021/jacs.0c06800] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Fu-Peng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Xiaoling Luo
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Todd B. Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, Liaoning, China
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24
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Wittmann BJ, Knight AM, Hofstra JL, Reisman SE, Jennifer Kan SB, Arnold FH. Diversity-Oriented Enzymatic Synthesis of Cyclopropane Building Blocks. ACS Catal 2020; 10:7112-7116. [PMID: 33282460 DOI: 10.1021/acscatal.0c01888] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
While biocatalysis is increasingly incorporated into drug development pipelines, it is less commonly used in the early stages of drug discovery. By engineering a protein to produce a chiral motif with a derivatizable functional handle, biocatalysts can be used to help generate diverse building blocks for drug discovery. Here we show the engineering of two variants of Rhodothermus marinus nitric oxide dioxygenase (RmaNOD) to catalyze the formation of cis- and tran- diastereomers of a pinacolboronate-substituted cyclopropane which can be readily derivatized to generate diverse stereopure cyclopropane building blocks.
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25
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Kleban I, Radchenko DS, Tymtsunik AV, Shuvakin S, Konovets AI, Rassukana Y, Grygorenko OO. Cyclopropyl boronic derivatives in parallel synthesis of sp3-enriched compound libraries. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02619-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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26
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Ikeda H, Nishi K, Tsurugi H, Mashima K. Chromium-catalyzed cyclopropanation of alkenes with bromoform in the presence of 2,3,5,6-tetramethyl-1,4-bis(trimethylsilyl)-1,4-dihydropyrazine. Chem Sci 2020; 11:3604-3609. [PMID: 34094048 PMCID: PMC8152687 DOI: 10.1039/d0sc00964d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/04/2020] [Indexed: 12/20/2022] Open
Abstract
Chromium-catalyzed cyclopropanation of alkenes with bromoform was achieved to produce the corresponding bromocyclopropanes. In this catalytic cyclopropanation, an organosilicon reductant, 2,3,5,6-tetramethyl-1,4-bis(trimethylsilyl)-1,4-dihydropyrazine (1a), was indispensable for reducing CrCl3(thf)3 to CrCl2(thf)3, as well as for in situ generation of (bromomethylidene)chromium(iii) species from (dibromomethyl)chromium(iii) species. The (bromomethylidene)chromium(iii) species are proposed to react spontaneously with alkenes to give the corresponding bromocyclopropanes. This catalytic cyclopropanation was applied to various olefinic substrates, such as allyl ethers, allyl esters, terminal alkenes, and cyclic alkenes.
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Affiliation(s)
- Hideaki Ikeda
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
| | - Kohei Nishi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
| | - Hayato Tsurugi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
| | - Kazushi Mashima
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
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27
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Liu Q, You B, Xie G, Wang X. Developments in the construction of cyclopropanols. Org Biomol Chem 2020; 18:191-204. [PMID: 31793614 DOI: 10.1039/c9ob02197c] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The ring-opening of cyclopropanols is one of the most active areas of research and it has been well documented in recent years owing to subsequent coupling with various partners, thus providing the facile syntheses of a large number of multifunctional compounds that may otherwise be difficult to access. Evidently, the useful cascade reaction requires easy access to diversely functionalized cyclopropanol substrates. However, developments in the construction of cyclopropanols have not received adequate attention. Herein, recent reports on the formation of cyclopropanols are summarized, and the highly stereoselective production of new promising substrates for the cyclopropanol ring-opening/cross-coupling reactions are introduced and improved syntheses of known cyclopropanols are depicted. This review may facilitate more interesting applications of the cyclopropanol ring-opening/coupling reaction in the synthesis of pharmaceutical compounds, natural products, and structurally more diversified organic synthetic intermediates.
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Affiliation(s)
- Qiang Liu
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, China.
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28
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Cyclopropylation of heterocyclic cores using cyclopropylboronic derivatives (microreview). Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02619-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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29
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Hryschuk OV, Yurov Y, Tymtsunik AV, Kovtunenko VO, Komarov IV, Grygorenko OO. Multigram Synthesis and C−C/C−N Couplings of Functionalized 1,2‐Disubstituted Cyclopropyltrifluoroborates. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900879] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Oleksandr V. Hryschuk
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Yevhen Yurov
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | | | | | - Igor V. Komarov
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
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30
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Elek GZ, Koppel K, Zubrytski DM, Konrad N, Järving I, Lopp M, Kananovich DG. Divergent Access to Histone Deacetylase Inhibitory Cyclopeptides via a Late-Stage Cyclopropane Ring Cleavage Strategy. Short Synthesis of Chlamydocin. Org Lett 2019; 21:8473-8478. [PMID: 31596600 DOI: 10.1021/acs.orglett.9b03305] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A unified step-economical strategy for accessing histone deacetylase inhibitory peptides is proposed, based on the late-stage installation of multiple zinc-binding functionalities via the cleavage of the strained cyclopropane ring in the common pluripotent cyclopropanol precursor. The efficacy of the proposed diversity-oriented approach has been validated by short stereoselective synthesis of natural product chlamydocin, containing a challenging-to-install fragment of (2S,9S)-2-amino-8-oxo-9,10-epoxydecanoic acid (Aoe) and a range of its analogues, derivatives of 2-amino-8-oxodecanoic and 2-aminosuberic acids.
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Affiliation(s)
- Gábor Zoltán Elek
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Kaur Koppel
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Dzmitry M Zubrytski
- Belarusian State University , Department of Organic Chemistry , Leningradskaya 14 , 220050 Minsk , Belarus
| | - Nele Konrad
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Ivar Järving
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Margus Lopp
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Dzmitry G Kananovich
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
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31
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Montesinos‐Magraner M, Costantini M, Ramírez‐Contreras R, Muratore ME, Johansson MJ, Mendoza A. General Cyclopropane Assembly by Enantioselective Transfer of a Redox‐Active Carbene to Aliphatic Olefins. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814123] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Matteo Costantini
- Dept. of Organic ChemistryStockholm University, Arrhenius Laboratory 10691 Stockholm Sweden
| | | | - Michael E. Muratore
- Cardiovascular, Renal and Metabolism IMED Biotech UnitAstraZeneca Gothenburg 43183 Mölndal Sweden
| | - Magnus J. Johansson
- Cardiovascular, Renal and Metabolism IMED Biotech UnitAstraZeneca Gothenburg 43183 Mölndal Sweden
| | - Abraham Mendoza
- Dept. of Organic ChemistryStockholm University, Arrhenius Laboratory 10691 Stockholm Sweden
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32
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Murai M, Taniguchi R, Mizuta C, Takai K. Chromium-Mediated Stannylcyclopropanation of Alkenes with (Diiodomethyl)stannanes. Org Lett 2019; 21:2668-2672. [PMID: 30946593 DOI: 10.1021/acs.orglett.9b00658] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A stannyl-group-substituted gem-dichromiomethane species, generated in situ from CrCl2, TMEDA, and tributyl(diiodomethyl)stannane, worked as an efficient stannylcarbene equivalent to promote cyclopropanation of alkenes. The reaction provided synthetically useful stannylcyclopropanes directly from commercially available unactivated alkenes without using potentially flammable alkylzinc and diazo compounds. Structural characterization of stannyl- and germyl-group-substituted gem-dichromiomethane complexes and the effect of group 14 elements containing substituents for cyclopropanation are also described.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Ryuji Taniguchi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Chisato Mizuta
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
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33
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Phipps EJT, Rovis T. Rh(III)-Catalyzed C-H Activation-Initiated Directed Cyclopropanation of Allylic Alcohols. J Am Chem Soc 2019; 141:6807-6811. [PMID: 30998324 DOI: 10.1021/jacs.9b02156] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We have developed a Rh(III)-catalyzed diastereoselective [2+1] annulation onto allylic alcohols initiated by alkenyl C-H activation of N-enoxyphthalimides to furnish substituted cyclopropyl-ketones. Notably, the traceless oxyphthalimide handle serves three functions: directing C-H activation, oxidation of Rh(III), and, collectively with the allylic alcohol, in directing cyclopropanation to control diastereoselectivity. Allylic alcohols are shown to be highly reactive olefin coupling partners leading to a directed diastereoselective cyclopropanation reaction, providing products not accessible by other routes.
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Affiliation(s)
- Erik J T Phipps
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
| | - Tomislav Rovis
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
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34
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Simaan M, Marek I. Diastereo- and enantioselective preparation of cyclopropanol derivatives. Beilstein J Org Chem 2019; 15:752-760. [PMID: 30992723 PMCID: PMC6444454 DOI: 10.3762/bjoc.15.71] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 03/11/2019] [Indexed: 12/12/2022] Open
Abstract
The diastereoselective carbocupration reaction of alkoxy-functionalized cyclopropene derivatives, followed by a subsequent trapping of the resulting cyclopropylmetal species with an electrophilic source of oxygen (oxenoid) afforded various tetrasubstituted cyclopropanol derivatives in high diastereo- and enantiomeric ratios. Similarly, the enantioselective copper-catalyzed carbomagnesiation/oxidation (or amination) sequence on achiral nonfunctionalized cyclopropenes provided the desired cyclopropanol (and cyclopropylamine) derivatives in excellent diastereo- and enantiomeric excesses.
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Affiliation(s)
- Marwan Simaan
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
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35
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Abstract
Cyclopropanes, one of the most important strained rings, have gained much attention for more than a century because of their interesting and unique reactivity. They not only exist in many natural products, but have also been widely used in the fields of organic synthesis, medicinal chemistry and materials science as versatile building blocks. Based on the sustainable development in this area, this review mainly focuses on the recent advances in the synthesis of cyclopropanes classified by the type of catalytic system, including regio-, diastereo-, and enantio-selective reactions.
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Affiliation(s)
- Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
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36
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Amenós L, Trulli L, Nóvoa L, Parra A, Tortosa M. Stereospecific Synthesis of α-Hydroxy-Cyclopropylboronates from Allylic Epoxides. Angew Chem Int Ed Engl 2019; 58:3188-3192. [PMID: 30600867 DOI: 10.1002/anie.201812836] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/20/2018] [Indexed: 11/11/2022]
Abstract
Herein, we report a catalytic and stereospecific method for the preparation of enantioenriched α-hydroxy cyclopropylboronates with control in four contiguous stereocenters. The reaction involves the borylation of readily available allylic epoxides using an inexpensive Cu(I) salt and a commercially available phosphine ligand. High diastereocontrol is achieved and different diastereomers can be selectively prepared. Functionalization of the carbon-boron bond provides access to different enantiomerically enriched trisubstituted cyclopropanes from a common intermediate.
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Affiliation(s)
- Laura Amenós
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Laura Trulli
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Nóvoa
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Alejandro Parra
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Mariola Tortosa
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
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37
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Montesinos-Magraner M, Costantini M, Ramírez-Contreras R, Muratore ME, Johansson MJ, Mendoza A. General Cyclopropane Assembly by Enantioselective Transfer of a Redox-Active Carbene to Aliphatic Olefins. Angew Chem Int Ed Engl 2019; 58:5930-5935. [PMID: 30675970 DOI: 10.1002/anie.201814123] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Indexed: 12/30/2022]
Abstract
Asymmetric cyclopropane synthesis currently requires bespoke strategies, methods, substrates, and reagents, even when targeting similar compounds. This approach slows down discovery and limits available chemical space. Introduced herein is a practical and versatile diazocompound and its performance in the first unified asymmetric synthesis of functionalized cyclopropanes. The redox-active leaving group in this reagent enhances the reactivity and selectivity of geminal carbene transfer. This effect allowed the asymmetric cyclopropanation of various olefins, including unfunctionalized aliphatic alkenes, that enables the three-step total synthesis of (-)-dictyopterene A. This unified synthetic approach delivers high enantioselectivities that are independent of the stereoelectronic properties of the functional groups transferred. Our results demonstrate that orthogonally differentiated diazocompounds are viable and advantageous equivalents of single-carbon chirons.
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Affiliation(s)
- Marc Montesinos-Magraner
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
| | - Matteo Costantini
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
| | | | - Michael E Muratore
- Cardiovascular, Renal and Metabolism IMED Biotech Unit, AstraZeneca Gothenburg, 43183, Mölndal, Sweden
| | - Magnus J Johansson
- Cardiovascular, Renal and Metabolism IMED Biotech Unit, AstraZeneca Gothenburg, 43183, Mölndal, Sweden
| | - Abraham Mendoza
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
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38
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Amenós L, Trulli L, Nóvoa L, Parra A, Tortosa M. Stereospecific Synthesis of α‐Hydroxy‐Cyclopropylboronates from Allylic Epoxides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Laura Amenós
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Laura Trulli
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Luis Nóvoa
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Alejandro Parra
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Mariola Tortosa
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
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39
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Ohtani T, Tsuchiya Y, Uraguchi D, Ooi T. Photocatalytic borylcyclopropanation of α-boryl styrenes. Org Chem Front 2019. [DOI: 10.1039/c9qo00197b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A diastereoselective borylcyclopropanation of α-MIDA-boryl styrenes is developed using 4CzIPN as a catalyst under visible-light irradiation. The scope of this photocatalytic method is explored, and the utility of the resulting doubly borylated cyclopropanes is demonstrated by the selective transformations of one of the two boryl groups.
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Affiliation(s)
- Tsuyoshi Ohtani
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8601
- Japan
| | - Yuto Tsuchiya
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8601
- Japan
| | - Daisuke Uraguchi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8601
- Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8601
- Japan
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40
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Zhao X, Xu S, He J, Zhou Y, Cao S. Highly regio- and diastereoselective Cu-catalyzed hydroborylation and hydrosilylation of difluorocyclopropenes with B2pin2 and PhMe2Si–Bpin. Org Chem Front 2019. [DOI: 10.1039/c9qo00580c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of trans-difluorocyclopropyl boronates and silanes through a Cu-catalyzed hydroborylation and hydrosilylation of difluorocyclopropenes was reported.
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Affiliation(s)
- Xianghu Zhao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Sixue Xu
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Jingjing He
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Yao Zhou
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
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41
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Shu C, Mega RS, Andreassen BJ, Noble A, Aggarwal VK. Synthesis of Functionalized Cyclopropanes from Carboxylic Acids by a Radical Addition–Polar Cyclization Cascade. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808598] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chao Shu
- School of ChemistryUniversity of Bristol, Cantock's Close Bristol BS8 1TS UK
| | - Riccardo S. Mega
- School of ChemistryUniversity of Bristol, Cantock's Close Bristol BS8 1TS UK
| | - Björn J. Andreassen
- School of ChemistryUniversity of Bristol, Cantock's Close Bristol BS8 1TS UK
| | - Adam Noble
- School of ChemistryUniversity of Bristol, Cantock's Close Bristol BS8 1TS UK
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42
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Shu C, Mega RS, Andreassen BJ, Noble A, Aggarwal VK. Synthesis of Functionalized Cyclopropanes from Carboxylic Acids by a Radical Addition-Polar Cyclization Cascade. Angew Chem Int Ed Engl 2018; 57:15430-15434. [PMID: 30204292 PMCID: PMC6282618 DOI: 10.1002/anie.201808598] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Indexed: 01/14/2023]
Abstract
Herein, we describe the development of a photoredox-catalyzed decarboxylative radical addition-polar cyclization cascade approach to functionalized cyclopropanes. Reductive termination of radical-polar crossover reactions between aliphatic carboxylic acids and electron-deficient alkenes yielded carbanion intermediates that were intercepted in intramolecular alkylations with alkyl chlorides appended to the alkene substrate. The mild conditions, which make use of a readily available organic photocatalyst and visible light, were demonstrated to be amenable to a broad range of structurally complex carboxylic acids and a wide variety of chloroalkyl alkenes, demonstrating exquisite functional group tolerance.
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Affiliation(s)
- Chao Shu
- School of ChemistryUniversity of Bristol, Cantock's CloseBristolBS8 1TSUK
| | - Riccardo S. Mega
- School of ChemistryUniversity of Bristol, Cantock's CloseBristolBS8 1TSUK
| | | | - Adam Noble
- School of ChemistryUniversity of Bristol, Cantock's CloseBristolBS8 1TSUK
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43
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Sayes M, Benoit G, Charette AB. Borocyclopropanation of Styrenes Mediated by UV-light Under Continuous Flow Conditions. Angew Chem Int Ed Engl 2018; 57:13514-13518. [DOI: 10.1002/anie.201807347] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/02/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Morgane Sayes
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - Guillaume Benoit
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - André B. Charette
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
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44
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Sayes M, Benoit G, Charette AB. Borocyclopropanation of Styrenes Mediated by UV-light Under Continuous Flow Conditions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Morgane Sayes
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - Guillaume Benoit
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
| | - André B. Charette
- Faculty of Arts and Sciences; Department of Chemistry; Université de Montreal; P.O. Box 6128 Station Downtown Montreal Quebec H3C 3J7 Canada
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45
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Jankins TC, Fayzullin RR, Khaskin E. Three-Component [1 + 1 + 1] Cyclopropanation with Ruthenium(II). Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00361] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tanner C. Jankins
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0412, Japan
| | - Robert R. Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street, 8, Kazan 420088, Russian Federation
| | - Eugene Khaskin
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0412, Japan
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46
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Mato M, Herlé B, Echavarren AM. Cyclopropanation by Gold- or Zinc-Catalyzed Retro-Buchner Reaction at Room Temperature. Org Lett 2018; 20:4341-4345. [PMID: 29975067 DOI: 10.1021/acs.orglett.8b01791] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Through the design of a second generation of more reactive 7-substituted 1,3,5-cycloheptatrienes, a room-temperature gold(I)-catalyzed retro-Buchner-cyclopropanation sequence and the first zinc(II)-catalyzed version of this process, which uses inexpensive ZnBr2 as catalyst, have been developed. This led to a broad-scope cyclopropanation of both activated and unactivated alkenes, including late-stage derivatization of biologically relevant compounds, and to the total synthesis of (±)-lactobacillic acid.
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·li Domingo s/n , 43007 Tarragona , Spain
| | - Bart Herlé
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·li Domingo s/n , 43007 Tarragona , Spain
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47
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Affiliation(s)
- Sukalyan Bhadra
- Inorganic Materials and Catalysis Division, Academy of Scientific and Innovative Research, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002 Gujarat, India
| | - Hisashi Yamamoto
- Molecular Catalyst Research Center, Chubu University, 1200, Matsumoto-Cho, Kasugai, Aichi 487-8501, Japan
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48
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Dian L, Marek I. Rhodium-Catalyzed Arylation of Cyclopropenes Based on Asymmetric Direct Functionalization of Three-Membered Carbocycles. Angew Chem Int Ed Engl 2018; 57:3682-3686. [DOI: 10.1002/anie.201713324] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/28/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Longyang Dian
- The Mallat Family Laboratory of Organic Chemistry; Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Haifa 3200009 Israel
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry; Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Haifa 3200009 Israel
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49
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Dian L, Marek I. Rhodium-Catalyzed Arylation of Cyclopropenes Based on Asymmetric Direct Functionalization of Three-Membered Carbocycles. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201713324] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Longyang Dian
- The Mallat Family Laboratory of Organic Chemistry; Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Haifa 3200009 Israel
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry; Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Haifa 3200009 Israel
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50
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Li J, Zheng L, Chen H, Wang L, Sun XL, Zhu J, Tang Y. Highly enantioselective cyclopropanation of trisubstituted olefins. Sci China Chem 2018. [DOI: 10.1007/s11426-017-9200-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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