1
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Wong CD, Jarvo ER. Sulfone cross-coupling outcompetes proton transfer. Nat Chem 2024:10.1038/s41557-024-01612-y. [PMID: 39147894 DOI: 10.1038/s41557-024-01612-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Affiliation(s)
- Chloe D Wong
- Department of Chemistry, University of California, Irvine, California, CA, USA
| | - Elizabeth R Jarvo
- Department of Chemistry, University of California, Irvine, California, CA, USA.
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2
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Nolla-Saltiel R, Ariki ZT, Schiele S, Alpin J, Tahara Y, Yokogawa D, Nambo M, Crudden CM. Enantiospecific cross-coupling of cyclic alkyl sulfones. Nat Chem 2024:10.1038/s41557-024-01594-x. [PMID: 39103655 DOI: 10.1038/s41557-024-01594-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 07/04/2024] [Indexed: 08/07/2024]
Abstract
Methods to form carbon-carbon bonds efficiently and with control of stereochemistry are critical for the construction of complex molecules. Cross-coupling reactions are among the most efficient and widely used reactions to construct molecules, with reactions enabling the retention or installation of chirality as recent additions to this powerful toolbox. Sulfones are robust, accessible organic electrophiles that have many attractive features as cross-coupling partners; however, since the first example of their use in 1979, there have been no examples of their use in enantioselective, enantiospecific or entantioconvergent cross-couplings. The high acidity of sulfones makes it unclear whether this transformation is even possible outside tertiary systems. Here we report the enantiospecific cross-coupling of cyclic sulfones and Grignard reagents. Up to 99% chirality transfer is observed despite the strong basicity of the Grignard components. In situ monitoring reveals that the cross-coupling is kinetically competitive with competing deprotonation, resulting in a highly enantioselective transformation.
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Affiliation(s)
- Roberto Nolla-Saltiel
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
| | - Zachary T Ariki
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
| | - Stefanie Schiele
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
| | - Jana Alpin
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada
| | - Yasuyo Tahara
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
| | - Daisuke Yokogawa
- Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
| | - Masakazu Nambo
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan.
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Japan.
| | - Cathleen M Crudden
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, Canada.
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan.
- Carbon to Metal Coating Institute, Queen's University, Kingston, Ontario, Canada.
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3
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Binayeva M, Ma X, Ghaemimohammadi P, Biscoe MR. A general approach to stereospecific Pd-catalyzed cross-coupling reactions of benzylic stereocenters. Chem Sci 2023; 14:14124-14130. [PMID: 38098708 PMCID: PMC10717501 DOI: 10.1039/d3sc04519f] [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: 08/26/2023] [Accepted: 11/15/2023] [Indexed: 12/17/2023] Open
Abstract
We have developed a general process for the formation of enantioenriched benzylic stereocenters via stereospecific Pd-catalyzed cross-coupling reactions of enantioenriched benzylic tricyclohexyltin nucleophiles. This process proceeds with excellent stereospecificity for a remarkably broad scope of electrophilic coupling partners including aryl and heteroaryl halides and triflates, acid chlorides, thioesters, chloroformates, and carbamoyl chlorides. Thus, enantioenriched 1,1-diarylalkanes as well as formal products of asymmetric enolate arylation are readily accessed using this approach. We additionally provide the first demonstration of a Sn-selective cross-coupling reaction using a vicinal alkylborylstannane nucleophile. In these reactions, the presence of cyclohexyl spectator ligands on tin is essential to ensure selective transfer of the secondary benzylic unit from tin to palladium.
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Affiliation(s)
- Meruyert Binayeva
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Xinghua Ma
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Pejman Ghaemimohammadi
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Mark R Biscoe
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
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4
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Herbert C, Jarvo ER. Nickel-Catalyzed Stereoselective Coupling Reactions of Benzylic and Alkyl Alcohol Derivatives. Acc Chem Res 2023; 56:3313-3324. [PMID: 37936256 PMCID: PMC10666291 DOI: 10.1021/acs.accounts.3c00547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/22/2023] [Accepted: 10/23/2023] [Indexed: 11/09/2023]
Abstract
ConspectusNickel-catalyzed reactions of alkyl alcohol derivatives leverage the high prevalence of hydroxyl groups in natural products, medicinal agents, and synthetic intermediates to provide access to C(sp3)-rich frameworks. This Account describes our laboratory's development of stereospecific and stereoconvergent C-C bond forming reactions employing C(sp3)-O and C(sp3)-N electrophiles. In the context of development of new transformations, we also define fundamental characteristics of the nickel catalysts.Part I details the nickel-catalyzed cross-coupling reactions developed by our group which hinges on stereospecific formation of stable π-benzyl intermediates. Acyclic and cyclic ethers, esters, carbamates, lactones, and sulfonamides undergo Kumada-, Suzuki-, and Negishi-type coupling reactions to produce enantioenriched products with high fidelity of stereochemical information. We describe extension to include ring-opening reactions of saturated heterocycles to afford acyclic 1,3-fragments in high diastereomeric ratios. We also describe our advances in stereospecific nickel-catalyzed cross-electrophile coupling reactions. Tethered C-O and C-X electrophiles proved fruitful for construction of a variety of carbocyclic frameworks. We report an intramolecular cross-electrophile coupling of benzylic pivalates with aryl bromides for the synthesis of indanes and tetralins. We found that 4-halotetrahydropyrans and 4-halopiperidines readily undergo stereospecific ring contraction to afford substituted cyclopropanes. Mechanistic investigations are consistent with closed-shell intermediates, a Ni(0)/Ni(II) cycle, and an intramolecular SN2-type reaction of a key organonickel intermediate to form the cyclopropane. Building toward more complex cascade reactions, we have demonstrated that 2-alkynyl piperidines incorporate MeMgI in a dicarbofunctionalization of the alkyne to afford highly substituted vinyl cyclopropanes.In Part II we present our development of stereoconvergent reactions of alkyl alcohol derivatives. In order to expand the utility of the intramolecular XEC reaction, we sought to employ unactivated alkyl electrophiles. Specifically, alkyl dimesylates engage in intramolecular XEC reactions to form alkyl cyclopropanes. In contrast to our previous work, these reactions proceed through open-shell intermediates and favor stereoconvergent formation of the trans-cyclopropane. Enantioselective aldol reactions can be employed in syntheses of 1,3-diols which furnish enantioenriched cyclopropanes in high ee. Experimental and computational evidence reveals that MeMgI mediates formation of alkyl iodides in situ. The coupling reaction initiates with halogen atom abstraction at the secondary alkyl iodide. The alkyl Ni(II) complex then proceeds through a stereospecific SN2-type ring closure to form cyclopropane. In an effort to increase functional group compatibility in the synthesis of cyclopropanes from alkyl dimesylates we developed a zinc-mediated reaction of 1,3-dimesylates prepared from medicinal analogues. In challenging nickel-catalyzed intramolecular cross-electrophile coupling we were also able to show that vicinal carbocycles can be prepared under similar conditions, affording vicinal cyclopentyl-cyclopropyl motifs in high yield.In Part III we discuss our recent findings on the role of ligand identity in catalyst selectivity for stereospecific vs stereoablative mechanisms for oxidative addition. We demonstrate multivariable control of mechanism, where the choice of substrate and ligand work together to promote open- or closed-shell intermediates. In divergent reactions of 4-halotetrahydropyrans we observe distinct ligand preference for reactions at the C(sp3)-O center or the C(sp3)-Cl center. These findings are the source of continued investigations in our laboratory.
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Affiliation(s)
- Claire
A. Herbert
- Department of Chemistry, University
of California, Irvine, California 92697, United States
| | - Elizabeth R. Jarvo
- Department of Chemistry, University
of California, Irvine, California 92697, United States
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5
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Karandikar SS, Metze BE, Roberts RA, Stuart DR. Oxidative Cycloaddition Reactions of Arylboron Reagents via a One-pot Formal Dehydroboration Sequence. Org Lett 2023; 25:6374-6379. [PMID: 37610877 DOI: 10.1021/acs.orglett.3c02379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Arylboron compounds are widely available and synthetically useful reagents in which the boron group is typically substituted. Herein, we show that the boron group and ortho-hydrogen atom are substituted in a formal cycloaddition reaction. This transformation is enabled by a one-pot sequence involving diaryliodonium and aryne intermediates. The scope of arylboron reagents and arynophiles is demonstrated, and the method is applied to the formal synthesis of an investigational drug candidate.
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Affiliation(s)
- Shubhendu S Karandikar
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Bryan E Metze
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Riley A Roberts
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - David R Stuart
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
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6
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Wei J, Gandon V, Zhu Y. Amino Acid-Derived Ionic Chiral Catalysts Enable Desymmetrizing Cross-Coupling to Remote Acyclic Quaternary Stereocenters. J Am Chem Soc 2023; 145:16796-16811. [PMID: 37471696 PMCID: PMC10401725 DOI: 10.1021/jacs.3c04877] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Synthetic application of asymmetric catalysis relies on strategic alignment of bond construction to creation of chirality of a target molecule. Remote desymmetrization offers distinctive advantages of spatial decoupling of catalytic transformation and generation of a stereogenic element. However, such spatial separation presents substantial difficulties for the chiral catalyst to discriminate distant enantiotopic sites through a reaction three or more bonds away from a prochirality center. Here, we report a strategy that establishes acyclic quaternary carbon stereocenters through cross-coupling reactions at distal positions of aryl substituents. The new class of amino acid-derived ionic chiral catalysts enables desymmetrizing (enantiotopic-group-selective) Suzuki-Miyaura reaction, Sonogashira reaction, and Buchwald-Hartwig amination between diverse diarylmethane scaffolds and aryl, alkynyl, and amino coupling partners, providing rapid access to enantioenriched molecules that project substituents to widely spaced positions in the three-dimensional space. Experimental and computational investigations reveal electrostatic steering of substrates by the C-terminus of chiral ligands through ionic interactions. Cooperative ion-dipole interactions between the catalyst's amide group and potassium cation aid in the preorganization that transmits asymmetry to the product. This study demonstrates that it is practical to achieve precise long-range stereocontrol through engineering the spatial arrangements of the ionic catalysts' substrate-recognizing groups and metal centers.
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Affiliation(s)
- Junqiang Wei
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (UMR CNRS 8182), Paris-Saclay University, bâtiment Hesnri Moissan, 17 avenue des sciences, 91400 Orsay, France
| | - Ye Zhu
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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7
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Talavera L, Freund RRA, Zhang H, Wakeling M, Jensen M, Martin R. Nickel-Catalyzed 1,1-Aminoborylation of Unactivated Terminal Alkenes. ACS Catal 2023; 13:5538-5543. [PMID: 37404837 PMCID: PMC10316398 DOI: 10.1021/acscatal.3c00888] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/30/2023] [Indexed: 07/06/2023]
Abstract
Herein, we disclose a Ni-catalyzed 1,1-difunctionalization of unactivated terminal alkenes that enables the incorporation of two different heteroatom motifs across an olefin backbone, thus streamlining the access to α-aminoboronic acid derivatives from simple precursors. The method is characterized by its simplicity and generality across a wide number of coupling counterparts.
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Affiliation(s)
- Laura Talavera
- Institute
of Chemical Research of Catalonia (ICIQ), The 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·lí Domingo,
1, 43007 Tarragona, Spain
| | - Robert R. A. Freund
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Huihui Zhang
- Institute
of Chemical Research of Catalonia (ICIQ), The 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·lí Domingo,
1, 43007 Tarragona, Spain
| | - Matthew Wakeling
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Mara Jensen
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Ruben Martin
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- ICREA, Passeig Lluís Companys, 23, 08010 Barcelona, Spain
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8
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Ruan LX, Sun B, Liu JM, Shi SL. Dynamic kinetic asymmetric arylation and alkenylation of ketones. Science 2023; 379:662-670. [PMID: 36795811 DOI: 10.1126/science.ade0760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Despite the importance of enantioenriched alcohols in medicinal chemistry, total synthesis, and materials science, the efficient and selective construction of enantioenriched tertiary alcohols bearing two contiguous stereocenters has remained a substantial challenge. We report a platform for their preparation through the enantioconvergent, nickel-catalyzed addition of organoboronates to racemic, nonactivated ketones. We prepared several important classes of α,β-chiral tertiary alcohols in a single step with high levels of diastereo- and enantioselectivity through a dynamic kinetic asymmetric addition of aryl and alkenyl nucleophiles. We applied this protocol to modify several profen drugs and to rapidly synthesize biologically relevant molecules. We expect this nickel-catalyzed, base-free ketone racemization process to be a widely applicable strategy for the development of dynamic kinetic processes.
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Affiliation(s)
- Lin-Xin Ruan
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Bo Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jia-Ming Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shi-Liang Shi
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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9
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Akagawa H, Tsuchiya N, Morinaga A, Katayama Y, Sumimoto M, Nishikata T. Carboxamide-Directed Stereospecific Couplings of Chiral Tertiary Alkyl Halides with Terminal Alkynes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02433] [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)
- Hiroki Akagawa
- Graiduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Naoki Tsuchiya
- Graiduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Asuka Morinaga
- Graiduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Yu Katayama
- Graiduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Michinori Sumimoto
- Graiduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Takashi Nishikata
- Graiduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
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10
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Luo W, Zhang LM, Zhang ZM, Zhang J. Synthesis of W-Phos Ligand and Its Application in the Copper-Catalyzed Enantioselective Addition of Linear Grignard Reagents to Ketones. Angew Chem Int Ed Engl 2022; 61:e202204443. [PMID: 35555954 DOI: 10.1002/anie.202204443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Indexed: 12/31/2022]
Abstract
The asymmetric catalytic addition of linear Grignard reagents to ketones has been a long-standing challenge in organic synthesis. Herein, a novel family of PNP ligands (W-Phos) was designed and applied in copper-catalyzed asymmetric addition of linear Grignard reagents to aryl alkyl ketones, allowing facile access to versatile chiral tertiary alcohols in good to high yields with excellent enantioselectivities (up to 94 % yield, 96 % ee). The process can also be used to synthesize chiral allylic tertiary alcohols from more challenging α,β-unsaturated ketones. Notably, the potential utility of this method is demonstrated in the gram-scale synthesis and modification of various densely functionalized medicinally relevant molecules.
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Affiliation(s)
- Wenjun Luo
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.,Zhuhai Fudan Innovation Institute, Hengqin NewArea, Zhuhai, 519000, P.R. China
| | - Li-Ming Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Zhan-Ming Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.,Zhuhai Fudan Innovation Institute, Hengqin NewArea, Zhuhai, 519000, P.R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, P. R. China
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11
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Chen Y, Gong H, Cheng L, Lin Q. Recent Progress on Transition-Metal-Mediated Reductive C(sp3)–O Bond Radical Addition and Coupling Reactions. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1848-3005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractIn this short review, we summarize the recent developments on thermo-driven C(sp3)–O bond radical scission methods and their applications in the construction of C(sp3)–C bonds via conjugate addition with activated double bonds and reductive coupling mediated by economic 3d metals, in particular nickel. We have arranged the review based on three approaches for C(sp3)–O bond radical scission (vide infra). After generating the radical intermediates, their subsequent transformation into C(sp3)–C bonds enabled by C(sp3)–O cross-electrophile coupling with carbon electrophiles is discussed in detail.1 Introduction2 Direct Single-Electron Transfer to a C(sp3)–O Bond3 Radical Scission of Activated C(sp3)–O Bonds via Single-Electron Transfer to Protecting Groups4 In Situ Activation of Alcohols5 Summary and Outlook
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Affiliation(s)
- Yunrong Chen
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University
| | - Hegui Gong
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University
| | - Li Cheng
- School of Materials Science and Engineering, Shanghai University
| | - Quan Lin
- School of Materials Science and Engineering, Shanghai University
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12
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Asai K, Miura M, Hirano K. Palladium-Catalyzed Cross-Coupling Reaction of Diarylmethanol Derivatives with Diborylmethane. J Org Chem 2022; 87:7436-7445. [PMID: 35608528 DOI: 10.1021/acs.joc.2c00715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed cross-coupling reaction of diarylmethanol derivatives with diborylmethane has been developed. The reaction proceeds chemoselectively to deliver the corresponding homobenzylic boronates in good yields.
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Affiliation(s)
- Kento Asai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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13
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Zhang J, Luo W, Zhang LM, Zhang ZM. Design and Synthesis of W‐Phos and Application in Copper‐Catalyzed Enantioselective Addition of Linear Grignard Reagents to Ketones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204443] [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)
- Junliang Zhang
- Fudan University Department of Chemistry 200062 Shanghai CHINA
| | - Wenjun Luo
- Fudan University Department of Chemistry CHINA
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14
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Hamby TB, LaLama MJ, Sevov CS. Controlling Ni redox states by dynamic ligand exchange for electroreductive Csp3-Csp2 coupling. Science 2022; 376:410-416. [PMID: 35446658 PMCID: PMC9260526 DOI: 10.1126/science.abo0039] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cross-electrophile coupling (XEC) reactions of aryl and alkyl electrophiles are appealing but limited to specific substrate classes. Here, we report electroreductive XEC of previously incompatible electrophiles including tertiary alkyl bromides, aryl chlorides, and aryl/vinyl triflates. Reactions rely on the merger of an electrochemically active complex that selectively reacts with alkyl bromides through 1e- processes and an electrochemically inactive Ni0(phosphine) complex that selectively reacts with aryl electrophiles through 2e- processes. Accessing Ni0(phosphine) intermediates is critical to the strategy but is often challenging. We uncover a previously unknown pathway for electrochemically generating these key complexes at mild potentials through a choreographed series of ligand-exchange reactions. The mild methodology is applied to the alkylation of a range of substrates including natural products and pharmaceuticals.
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Affiliation(s)
- Taylor B. Hamby
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
| | - Matthew J. LaLama
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
| | - Christo S. Sevov
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
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15
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Chen SG, Tan J, Xiong D, Shang Y, Mao J, Walsh P. Palladium-Catalyzed Enantioselective (2-Naphthyl)methylation of Azaarylmethyl Amines. Org Chem Front 2022. [DOI: 10.1039/d2qo00273f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantioenriched azaarylmethyl amine derivatives are useful building blocks in synthetic and medicinal chemistry. To access these valuable motifs, an enantioselective palladium-catalyzed benzylation of azaarylmethyl amine pronucleophiles is introduced. Of note,...
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16
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Cooper P, Dalling AG, Farrar EHE, Aldhous TP, Grélaud S, Lester E, Feron LJ, Kemmitt PD, Grayson MN, Bower JF. Atom and step economical synthesis of acyclic quaternary centers via iridium-catalyzed hydroarylative cross-coupling of 1,1-disubstituted alkenes. Chem Sci 2022; 13:11183-11189. [PMID: 36320466 PMCID: PMC9516889 DOI: 10.1039/d2sc02790a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 09/01/2022] [Indexed: 11/21/2022] Open
Abstract
Quaternary benzylic centers are accessed with high atom and step economy by intermolecular Ir-catalyzed hydroarylation of non-polarized 1,1-disubstituted alkenes.
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Affiliation(s)
- Phillippa Cooper
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | | | | | - Timothy P. Aldhous
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - Simon Grélaud
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Eleanor Lester
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Lyman J. Feron
- Medicinal Chemistry, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | - Paul D. Kemmitt
- Medicinal Chemistry, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | | | - John F. Bower
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
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17
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Li C, Wu J, Shi H, Xia Z, Sahoo JK, Yeo J, Kaplan DL. Fiber-Based Biopolymer Processing as a Route toward Sustainability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2105196. [PMID: 34647374 PMCID: PMC8741650 DOI: 10.1002/adma.202105196] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/04/2021] [Indexed: 05/02/2023]
Abstract
Some of the most abundant biomass on earth is sequestered in fibrous biopolymers like cellulose, chitin, and silk. These types of natural materials offer unique and striking mechanical and functional features that have driven strong interest in their utility for a range of applications, while also matching environmental sustainability needs. However, these material systems are challenging to process in cost-competitive ways to compete with synthetic plastics due to the limited options for thermal processing. This results in the dominance of solution-based processing for fibrous biopolymers, which presents challenges for scaling, cost, and consistency in outcomes. However, new opportunities to utilize thermal processing with these types of biopolymers, as well as fibrillation approaches, can drive renewed opportunities to bridge this gap between synthetic plastic processing and fibrous biopolymers, while also holding sustainability goals as critical to long-term successful outcomes.
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Affiliation(s)
- Chunmei Li
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Junqi Wu
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Haoyuan Shi
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca NY 14853, USA
| | - Zhiyu Xia
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Jugal Kishore Sahoo
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Jingjie Yeo
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca NY 14853, USA
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
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18
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Tran HN, Nguyen CM, Koeritz MT, Youmans DD, Stanley LM. Nickel-Catalyzed Arylative Substitution of Homoallylic Alcohols. Chem Sci 2022; 13:11607-11613. [PMID: 36320388 PMCID: PMC9555571 DOI: 10.1039/d2sc01716d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 07/11/2022] [Indexed: 11/28/2022] Open
Abstract
Direct coupling of unactivated alcohols remains a challenge in synthetic chemistry. Current approaches to cross-coupling of alcohol-derived electrophiles often involve activated alcohols such as tosylates or carbonates. We report the direct arylative substitution of homoallylic alcohols catalyzed by a nickel-bisphosphine complex as a facile method to generate allylic arenes. These reactions proceed via formation of an allylic alcohol intermediate. Subsequent allylic substitution with arylboroxine nucleophiles enables the formation of a variety of allylic arenes. The presence of p-methoxyphenylboronic acid is crucial to activate the allylic alcohol to achieve high product yields. Arylative substitutions of homoallylic alcohols with arylboron nucleophiles demonstrate the utility of unactivated alcohols as coupling partners in transition metal-catalyzed cross-coupling chemistry.![]()
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Affiliation(s)
- Hai N Tran
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Chau M Nguyen
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Mason T Koeritz
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Dustin D Youmans
- Department of Chemistry, Iowa State University Ames IA 50011 USA
| | - Levi M Stanley
- Department of Chemistry, Iowa State University Ames IA 50011 USA
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19
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Shekhar S, Ahmed TS, Ickes AR, Haibach MC. Recent Advances in Nonprecious Metal Catalysis. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shashank Shekhar
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Tonia S. Ahmed
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Andrew R. Ickes
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Michael C. Haibach
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
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20
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Zhang T, Zheng S, Kobayashi T, Maekawa H. Regioselective Silylations of Propargyl and Allyl Pivalates through Ca-Promoted Reductive C(sp 3)-O Bond Cleavage. Org Lett 2021; 23:7129-7133. [PMID: 34473522 DOI: 10.1021/acs.orglett.1c02532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A practical protocol for the regioselective preparation of 3-phenylpropargylsilanes and 3-phenylallylsilanes in yields of 36-77 and 48-86%, respectively, from readily accessible 3-phenylpropargyl and 1-phenylallyl pivalates was developed through reductive C(sp3)-O bond cleavage. This method represents the first example of the direct application of vastly abundant calcium granules to a reductive coupling reaction. A broad range of propargylsilanes and allylsilanes are simply prepared using easy-to-handle pivalates and chlorotrimethylsilane under mild catalyst-free and additive-free conditions.
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Affiliation(s)
- Tianyuan Zhang
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Suhua Zheng
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Taro Kobayashi
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Hirofumi Maekawa
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
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21
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Nambo M, Crudden CM. Transition Metal-Catalyzed Cross-Couplings of Benzylic Sulfone Derivatives. CHEM REC 2021; 21:3978-3989. [PMID: 34523788 DOI: 10.1002/tcr.202100210] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 12/25/2022]
Abstract
In recent years, the use of organosulfones as a new class of cross-coupling partner in transition-metal catalyzed reactions has undergone significant advancement. In this personal account, our recent investigations into desulfonylative cross-coupling reactions of benzylic sulfone derivatives catalyzed by Pd, Ni, and Cu catalysis is described. Combined with the facile α-functionalizations of sulfones, our methods can be used to form valuable multiply-arylated structures such as di-, tri-, and, tetraarylmethanes from readily available substrates. The reactivity of sulfones can be increased by introducing electron-withdrawing substituents such as 3,5-bis(trifluoromethyl)phenyl and trifluoromethyl groups, which enable more challenging cross-coupling reactions. Reactive intermediates including Cu-carbene complexes were identified as key intermediates in sulfone activation, representing new types of C-SO2 bond activation processes. These results indicate sulfones are powerful functional groups, enabling new catalytic desulfonylative transformations.
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Affiliation(s)
- Masakazu Nambo
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-860, Japan
| | - Cathleen M Crudden
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-860, Japan.,Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario, K7L 3N6, Canada
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22
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Wu L, Wei H, Chen J, Zhang W. Development of Nickel-Catalyzed Cross-Coupling of Alcohol Derivatives to Construct Carbon-Carbon Bonds. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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