1
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Ayurini M, Haridas D, Mendoza DJ, Garnier G, Hooper JF. RAFT Polymerisation by the Radical Decarboxylation of Carboxylic Acids. Angew Chem Int Ed Engl 2024; 63:e202317071. [PMID: 37990056 DOI: 10.1002/anie.202317071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
The controlled grafting of polymers from small- and macro-molecular substrates is an essential process for many advanced polymer applications. This usually requires the pre-functionalisation of substrates with an appropriate functional group, such as a RAFT agent or ATRP initiator, which requires additional synthetic steps. In this paper, we describe the direct grafting of RAFT polymers from carboxylate containing small molecules and polymers via photochemical radical decarboxylation. This method utilises the innate functional groups present in the substrates, and achieves efficient polymer initiation in a single step with excellent control of molecular weight and dispersity.
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Affiliation(s)
- Meri Ayurini
- School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia
- Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, Victoria, 3800, Australia
| | - Darsan Haridas
- School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia
- Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, Victoria, 3800, Australia
| | - David Joram Mendoza
- Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, Victoria, 3800, Australia
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Gil Garnier
- Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, Victoria, 3800, Australia
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Joel F Hooper
- School of Chemistry, Monash University, Clayton, 3800, Victoria, Australia
- Bioresource Processing Research Institute of Australia (BioPRIA), Monash University, Clayton, Victoria, 3800, Australia
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2
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Nguyen AT, Kim HK. Visible-light-mediated synthesis of oxime esters via multicomponent reactions of aldehydes, aryl amines, and N-hydroxyphthalimide esters. RSC Adv 2023; 13:31346-31352. [PMID: 37901270 PMCID: PMC10600831 DOI: 10.1039/d3ra06737h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 10/21/2023] [Indexed: 10/31/2023] Open
Abstract
Oxime esters are useful scaffolds in many organic chemistry transformations. Herein, a novel visible-light-mediated three-component reaction for synthesis of oxime esters is reported. Aldehydes, aniline, and N-hydroxyphthalimide (NHPI) esters were used as substrates in this three-component reaction, and eosin Y was used as a crucial photocatalyst for the reaction. Wide ranges of aldehydes and NHPI esters were well tolerated in this reaction method, generating various oxime esters with high efficiency under mild reaction conditions. This visible-light-mediated methodology will be a promising approach to synthesize useful oxime esters in a single step.
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Affiliation(s)
- Anh Thu Nguyen
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital Jeonju 54907 Republic of Korea
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital Jeonju 54907 Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital Jeonju 54907 Republic of Korea
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3
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Brals J, McGuire TM, Watson AJB. A Chemoselective Polarity-Mismatched Photocatalytic C(sp 3 )-C(sp 2 ) Cross-Coupling Enabled by Synergistic Boron Activation. Angew Chem Int Ed Engl 2023; 62:e202310462. [PMID: 37622419 PMCID: PMC10952440 DOI: 10.1002/anie.202310462] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 08/26/2023]
Abstract
We report the development of a C(sp3 )-C(sp2 ) coupling reaction using styrene boronic acids and redox-active esters under photoredox catalysis. The reaction proceeds through an unusual polarity-mismatched radical addition mechanism that is orthogonal to established processes. Synergistic activation of the radical precursor and organoboron are critical mechanistic events. Activation of an N-hydroxyphthalimide (NHPI) ester by coordination to boron enables electron transfer, with decomposition leading to a nucleofuge rebound, activating the organoboron to radical addition. The unique mechanism enables chemoselective coupling of styrene boronic acids in the presence of other alkene radical acceptors. The scope and limitations of the reaction, and a detailed mechanistic investigation are presented.
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Affiliation(s)
- Jeremy Brals
- EaStCHEMSchool of ChemistryUniversity of St AndrewsPurdie Building, North HaughSt AndrewsKY16 9STUK
| | - Thomas M. McGuire
- AstraZenecaDarwin Building, Unit 310Cambridge Science Park, Milton RoadCambridgeCB4 0WGUK
| | - Allan J. B. Watson
- EaStCHEMSchool of ChemistryUniversity of St AndrewsPurdie Building, North HaughSt AndrewsKY16 9STUK
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4
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Paul S, Adelfinsky D, Salome C, Fessard T, Brown MK. 2,5-disubstituted bicyclo[2.1.1]hexanes as rigidified cyclopentane variants. Chem Sci 2023; 14:8070-8075. [PMID: 37538817 PMCID: PMC10395266 DOI: 10.1039/d3sc02695g] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/06/2023] [Indexed: 08/05/2023] Open
Abstract
Identification of rigid counterparts for common flexible scaffolds is crucial to the advancement of medicinal chemistry. Here we showcase a new class of building blocks, 2,5-disubstituted bicyclo[2.1.1]hexanes that can act as rigidified cis-, or trans-1,3-disubstituted cyclopentanes, common motifs in drugs. The scalable synthesis of these structures was enabled through the use of C-H functionalization logic and cycloaddition reactions.
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Affiliation(s)
- Shashwati Paul
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave Bloomington IN 47405 USA
| | - Daniel Adelfinsky
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave Bloomington IN 47405 USA
| | - Christophe Salome
- SpiroChem AG Rosental Area, WRO-1047-3, Mattenstrasse 22 4058 Basel Switzerland
| | - Thomas Fessard
- SpiroChem AG Rosental Area, WRO-1047-3, Mattenstrasse 22 4058 Basel Switzerland
| | - M Kevin Brown
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave Bloomington IN 47405 USA
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5
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Seong CM, Ansel AQ, Roberts CC. Redox Inversion: A Radical Analogue of Umpolung Reactivity for Base- and Metal-Free Catalytic C(sp 3)-C(sp 3) Coupling. J Org Chem 2023; 88:3935-3940. [PMID: 36877204 DOI: 10.1021/acs.joc.2c02877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
The construction of alkyl-alkyl bonds is a powerful tool in organic synthesis. Redox inversion, defined as switching the donor/acceptor profile of a functional group to its acceptor/donor profile, is used for C(sp3)-C(sp3) coupling. We report a photocatalytic coupling of carboxylic acids to form bibenzyls through a radical-radical coupling. Mechanistic insight is gained through control reactions. This unexplored redox-opposite relationship between a carboxylic acid and its redox-active ester is implemented in catalysis.
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Affiliation(s)
- Chris M Seong
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Annabel Q Ansel
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Courtney C Roberts
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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6
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Lu YC, West JG. Chemoselective Decarboxylative Protonation Enabled by Cooperative Earth-Abundant Element Catalysis. Angew Chem Int Ed Engl 2023; 62:e202213055. [PMID: 36350328 PMCID: PMC9839625 DOI: 10.1002/anie.202213055] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/11/2022]
Abstract
Decarboxylative protonation is a general deletion tactic to replace polar carboxylic acid groups with hydrogen or its isotope. Current methods rely on the pre-activation of acids, non-sustainable hydrogen sources, and/or expensive/highly oxidizing photocatalysts, presenting challenges to their wide adoption. Here we show that a cooperative iron/thiol catalyst system can readily achieve this transformation, hydrodecarboxylating a wide range of activated and unactivated carboxylic acids and overcoming scope limitations in previous direct methods. The reaction is readily scaled in batch configuration and can be directly performed in deuterated solvent to afford high yields of d-incorporated products with excellent isotope incorporation efficiency; characteristics not attainable in previous photocatalyzed approaches. Preliminary mechanistic studies indicate a radical mechanism and kinetic results of unactivated acids (KIE=1) are consistent with a light-limited reaction.
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Affiliation(s)
- Yen-Chu Lu
- Department of Chemistry, Rice University, 6100 Main St, Houston, TX 77005, USA
| | - Julian G West
- Department of Chemistry, Rice University, 6100 Main St, Houston, TX 77005, USA
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7
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Dherange BD, Yuan M, Kelly CB, Reiher CA, Grosanu C, Berger KJ, Gutierrez O, Levin MD. Direct Deaminative Functionalization. J Am Chem Soc 2023; 145:17-24. [PMID: 36548788 PMCID: PMC10245626 DOI: 10.1021/jacs.2c11453] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Selective functional group interconversions in complex molecular settings underpin many of the challenges facing modern organic synthesis. Currently, a privileged subset of functional groups dominates this landscape, while others, despite their abundance, are sorely underdeveloped. Amines epitomize this dichotomy; they are abundant but otherwise intransigent toward direct interconversion. Here, we report an approach that enables the direct conversion of amines to bromides, chlorides, iodides, phosphates, thioethers, and alcohols, the heart of which is a deaminative carbon-centered radical formation process using an anomeric amide reagent. Experimental and computational mechanistic studies demonstrate that successful deaminative functionalization relies not only on outcompeting the H-atom transfer to the incipient radical but also on the generation of polarity-matched, productive chain-carrying radicals that continue to react efficiently. The overall implications of this technology for interconverting amine libraries were evaluated via high-throughput parallel synthesis and applied in the development of one-pot diversification protocols.
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Affiliation(s)
- Balu D Dherange
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Mingbin Yuan
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Christopher B Kelly
- Discovery Process Research, Janssen Research & Development LLC, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Christopher A Reiher
- Parallel Medicinal Chemistry, Janssen Research & Development LLC, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Cristina Grosanu
- High Throughput Purification, Janssen Research & Development LLC, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Kathleen J Berger
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Osvaldo Gutierrez
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Mark D Levin
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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8
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Laudadio G, Palkowitz MD, El-Hayek Ewing T, Baran PS. Decarboxylative Cross-Coupling: A Radical Tool in Medicinal Chemistry. ACS Med Chem Lett 2022; 13:1413-1420. [PMID: 36105339 PMCID: PMC9465705 DOI: 10.1021/acsmedchemlett.2c00286] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/29/2022] [Indexed: 11/30/2022] Open
Abstract
Carboxylic acids, the most versatile and ubiquitous diversity input used in medicinal chemistry for canonical polar bond constructions such as amide synthesis, can now be employed in a fundamentally different category of reaction to make C-C bonds by harnessing the power of radicals. This outlook serves as a user-guide to aid practitioners in both the design of syntheses that leverage the simplifying power of this disconnection and the precise tactics that can be employed to enable them. Taken together, this emerging area holds the potential to rapidly accelerate access to chemical space of value to modern medicinal chemistry.
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Affiliation(s)
- Gabriele Laudadio
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, Calilfornia 92037, United States
| | - Maximilian D. Palkowitz
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, Calilfornia 92037, United States
| | - Tamara El-Hayek Ewing
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, Calilfornia 92037, United States
| | - Phil S. Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, Calilfornia 92037, United States
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9
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Burtea A, DeForest J, Baldwin N, Leverett C, Gallego GM. A convenient and versatile S NAr-decarboxylation protocol for the construction of C(sp 2)-C(sp 3) bonds. Chem Commun (Camb) 2022; 58:7435-7438. [PMID: 35699115 DOI: 10.1039/d2cc01551j] [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
Increasing saturation (Fsp3) remains a central strategy in the optimization of properties of molecules during drug discovery. Here, we describe a versatile and operationally simple one-pot procedure for accomplishing this goal via a nucleophilic aromatic substitution-decarboxylation sequence to construct C(sp2)-C(sp3) bonds. The method is tolerant of a variety of biologically privileged moieties and has been demonstrated in a library format.
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Affiliation(s)
- Alexander Burtea
- Oncology Medicinal Chemistry, Pfizer Worldwide Research, Development and Medical, 10770 Science Center Drive, San Diego, CA 92121, USA.
| | - Jacob DeForest
- Oncology Medicinal Chemistry, Pfizer Worldwide Research, Development and Medical, 10770 Science Center Drive, San Diego, CA 92121, USA.
| | - Neil Baldwin
- Pfizer Medicine Design, 445 Eastern Point Rd, Groton, CT 06340, USA
| | - Carolyn Leverett
- Pfizer Medicine Design, 445 Eastern Point Rd, Groton, CT 06340, USA
| | - Gary M Gallego
- Oncology Medicinal Chemistry, Pfizer Worldwide Research, Development and Medical, 10770 Science Center Drive, San Diego, CA 92121, USA.
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10
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Convergent total synthesis of (+)-calcipotriol: A scalable, modular approach to vitamin D analogs. Proc Natl Acad Sci U S A 2022; 119:e2200814119. [PMID: 35476519 DOI: 10.1073/pnas.2200814119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A convergent approach for the total synthesis of calcipotriol (brand name: Dovonex), a proven vitamin D analog used for the treatment of psoriasis, and medicinally relevant synthetic analogs is described. A complete approach, not wedded to semisynthesis, toward both the A-ring and CD-ring is reported. From a retrosynthetic standpoint, hidden symmetry within the decorated A-ring is disclosed, which allowed for scalable quantities of this advanced intermediate. In addition, a radical retrosynthetic approach is described, which highlights an electrochemical reductive coupling as well as an intramolecular hydrogen atom transfer Giese addition to establish the 6,5-transcarbon skeleton found in the vitamin D family. Finally, a late-stage decarboxylative cross-coupling approach allowed for the facile preparation of various C20-arylated derivatives that show promising biological activity in an initial bioassay.
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11
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Wen K, Wu Y, Chen J, Shi J, Zheng M, Yao X, Tang X. Copper-Mediated Decarboxylative Coupling of 3-Indoleacetic Acids with Pyrazolones. ACS OMEGA 2022; 7:5274-5282. [PMID: 35187342 PMCID: PMC8851627 DOI: 10.1021/acsomega.1c06443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/24/2022] [Indexed: 05/05/2023]
Abstract
A copper-mediated decarboxylative coupling reaction of 3-indoleacetic acids with pyrazolones was described. This protocol realized new functionalization of pyrazolones under simple reaction conditions and exhibited high functional group compatibility and broad substrate scope. Notably, the products displayed antiproliferative activity against cancer cells.
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12
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Xiao J, Li Z, Montgomery J. Nickel-Catalyzed Decarboxylative Coupling of Redox-Active Esters with Aliphatic Aldehydes. J Am Chem Soc 2021; 143:21234-21240. [PMID: 34894690 DOI: 10.1021/jacs.1c11170] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The addition of alkyl fragments to aliphatic aldehydes is a highly desirable transformation for fragment couplings, yet existing methods come with operational challenges related to the basicity and instability of the nucleophilic reagents commonly employed. We report herein that nickel catalysis using a readily available bioxazoline (BiOx) ligand can catalyze the reductive coupling of redox-active esters with aliphatic aldehydes using zinc metal as the reducing agent to deliver silyl-protected secondary alcohols. This protocol is operationally simple, proceeds under mild conditions, and tolerates a variety of functional groups. Initial mechanistic studies suggest a radical chain pathway. Additionally, alkyl tosylates and epoxides are suitable alkyl precursors to this transformation providing a versatile suite of catalytic reactions for the functionalization of aliphatic aldehydes.
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Affiliation(s)
- Jichao Xiao
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48108-1055, United States
| | - Zhenning Li
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48108-1055, United States
| | - John Montgomery
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48108-1055, United States
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13
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Zhang Z, Cernak T. The Formal Cross‐Coupling of Amines and Carboxylic Acids to Form sp
3
–sp
3
Carbon–Carbon Bonds. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202112454] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zirong Zhang
- Department of Medicinal Chemistry College of Pharmacy University of Michigan 930 N University Ave Ann Arbor MI 48109 USA
| | - Tim Cernak
- Department of Medicinal Chemistry College of Pharmacy University of Michigan 930 N University Ave Ann Arbor MI 48109 USA
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14
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O'Hair RAJ. ORGANOMETALLIC GAS-PHASE ION CHEMISTRY AND CATALYSIS: INSIGHTS INTO THE USE OF METAL CATALYSTS TO PROMOTE SELECTIVITY IN THE REACTIONS OF CARBOXYLIC ACIDS AND THEIR DERIVATIVES. MASS SPECTROMETRY REVIEWS 2021; 40:782-810. [PMID: 32965774 DOI: 10.1002/mas.21654] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Carboxylic acids are valuable organic substrates as they are widely available, easy to handle, and exhibit structural and functional variety. While they are used in many standard synthetic protocols, over the past two decades numerous studies have explored new modes of metal-mediated reactivity of carboxylic acids and their derivatives. Mass spectrometry-based studies can provide fundamental mechanistic insights into these new modes of reactivity. Here gas-phase models for the following catalytic transformations of carboxylic acids and their derivatives are reviewed: protodecarboxylation; dehydration; decarbonylation; reaction as coordinated bases in C-H bond activation; remote functionalization and decarboxylative C-C bond coupling. In each case the catalytic problem is defined, insights from gas-phase studies are highlighted, comparisons with condensed-phase systems are made and perspectives are reached. Finally, the potential role for mechanistic studies that integrate both gas- and condensed-phase studies is highlighted by recent studies on the discovery of new catalysts for the selective decomposition of formic acid and the invention of the new extrusion-insertion class of reactions for the synthesis of amides, thioamides, and amidines. © 2020 John Wiley & Sons Ltd. Mass Spec Rev.
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Affiliation(s)
- Richard A J O'Hair
- School of Chemistry, University of Melbourne, Victoria, 3010, Australia
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Victoria, 3010, Australia
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15
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Zhang Z, Cernak T. The Formal Cross-Coupling of Amines and Carboxylic Acids to Form sp 3 -sp 3 Carbon-Carbon Bonds. Angew Chem Int Ed Engl 2021; 60:27293-27298. [PMID: 34669980 DOI: 10.1002/anie.202112454] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Indexed: 12/25/2022]
Abstract
We have developed a deaminative-decarboxylative protocol to form new carbon(sp3 )-carbon(sp3 ) bonds from activated amines and carboxylic acids. Amines and carboxylic acids are ubiquitous building blocks, available in broad chemical diversity and at lower cost than typical C-C coupling partners. To leverage amines and acids for C-C coupling, we developed a reductive nickel-catalyzed cross-coupling utilizing building block activation as pyridinium salts and redox-active esters, respectively. Miniaturized high-throughput experimentation studies were critical to our reaction optimization, with subtle experimental changes such as order of reagent addition, composition of a binary solvent system, and ligand identity having a significant impact on reaction performance. The developed protocol is used in the late-stage diversification of pharmaceuticals while more than one thousand systematically captured and machine-readable reaction datapoints are reposited.
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Affiliation(s)
- Zirong Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 930 N University Ave, Ann Arbor, MI, 48109, USA
| | - Tim Cernak
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, 930 N University Ave, Ann Arbor, MI, 48109, USA
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16
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Yang S, Jiang WT, Xiao B. Tertiary cyclopropyl carbagermatranes: synthesis and cross-coupling. Chem Commun (Camb) 2021; 57:8143-8146. [PMID: 34318815 DOI: 10.1039/d1cc02930d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The construction of the cyclopropyl quaternary carbon center can afford a series of 1,1-olefin bioisosteres. Here, we report tertiary cyclopropyl carbagermatranes, which can be easily obtained by the zinc-mediated decarboxylation of NHP esters. In addition, they exhibit efficient reactivity in the palladium-catalyzed cross-coupling reaction and orthogonal reactivity with boron reagents, therefore acting as robust nucleophiles for the synthesis of tertiary cyclopropane and efficient intermediates for the formation of quaternary centers.
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Affiliation(s)
- Shuo Yang
- University of Science and Technology of China, Hefei 230026, P. R. China.
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17
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Gao Y, Hill DE, Hao W, McNicholas BJ, Vantourout JC, Hadt RG, Reisman SE, Blackmond DG, Baran PS. Electrochemical Nozaki-Hiyama-Kishi Coupling: Scope, Applications, and Mechanism. J Am Chem Soc 2021; 143:9478-9488. [PMID: 34128671 DOI: 10.1021/jacs.1c03007] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
One of the most oft-employed methods for C-C bond formation involving the coupling of vinyl-halides with aldehydes catalyzed by Ni and Cr (Nozaki-Hiyama-Kishi, NHK) has been rendered more practical using an electroreductive manifold. Although early studies pointed to the feasibility of such a process, those precedents were never applied by others due to cumbersome setups and limited scope. Here we show that a carefully optimized electroreductive procedure can enable a more sustainable approach to NHK, even in an asymmetric fashion on highly complex medicinally relevant systems. The e-NHK can even enable non-canonical substrate classes, such as redox-active esters, to participate with low loadings of Cr when conventional chemical techniques fail. A combination of detailed kinetics, cyclic voltammetry, and in situ UV-vis spectroelectrochemistry of these processes illuminates the subtle features of this mechanistically intricate process.
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Affiliation(s)
- Yang Gao
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - David E Hill
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Wei Hao
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Brendon J McNicholas
- Division of Chemistry and Chemical Engineering, Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, United States
| | - Julien C Vantourout
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Ryan G Hadt
- Division of Chemistry and Chemical Engineering, Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, United States
| | - Sarah E Reisman
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Donna G Blackmond
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Phil S Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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18
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Miyata S, Kawashima Y, Sakai M, Matsubayashi M, Motoki K, Miyajima Y, Watanabe Y, Chikamatsu N, Taniguchi T, Tokuyama R. Discovery, optimization, and evaluation of non-bile acid FXR/TGR5 dual agonists. Sci Rep 2021; 11:9196. [PMID: 33911126 PMCID: PMC8080777 DOI: 10.1038/s41598-021-88493-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/13/2021] [Indexed: 02/06/2023] Open
Abstract
Although several potent bile acid Farnesoid X receptor (FXR) and Takeda G-protein-coupled receptor 5 (TGR5, GPBAR1) dual agonists such as INT-767 have been reported, no non-bile acid FXR/TGR5 dual agonist has been investigated to date. Therefore, we attempted to discover potent non-bile acid FXR/TGR5 dual agonists and identified some non-bile acid FXR/TGR5 dual agonists, such as isonicotinamide derivatives in vitro assay. Compound 20p was evaluated in C57BL/6J mice, that were administered a choline-deficient, L-amino acid-defined, high-fat diet (CDAHFD) consisting of 60 kcal% fat and 0.1% methionine by weight for one week. Compound 20p dose-dependently induced small heterodimer partner (SHP) mRNA and decreased cytochrome P450 7A1 (CYP7A1) in the liver at 10 and 30 mg/kg, respectively, which were used as FXR agonist markers. Compound 20p significantly increased the plasma levels of GLP-1 as a TGR5 agonist, and a high concentration of GLP-1 lowered blood glucose levels. We confirmed that compound 20p was a non-bile acid FXR/TGR5 dual agonist.
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Affiliation(s)
- Sachiho Miyata
- Research Laboratory 1, FUJI YAKUHIN. CO., LTD, 1-32-3, Nishi-Omiya, Nishi-ku, Saitama City, Saitama, Japan.
| | - Yuji Kawashima
- Research Laboratory 1, FUJI YAKUHIN. CO., LTD, 1-32-3, Nishi-Omiya, Nishi-ku, Saitama City, Saitama, Japan
| | - Miku Sakai
- Research Laboratory 2, FUJI YAKUHIN. CO., LTD, Nishi-ku, Iida-Shinden, Saitama City, Saitama, 636-1, Japan
| | - Masaya Matsubayashi
- Research Laboratory 2, FUJI YAKUHIN. CO., LTD, Nishi-ku, Iida-Shinden, Saitama City, Saitama, 636-1, Japan
| | - Keisuke Motoki
- Research Laboratory 2, FUJI YAKUHIN. CO., LTD, Nishi-ku, Iida-Shinden, Saitama City, Saitama, 636-1, Japan
| | - Yui Miyajima
- Research Laboratory 1, FUJI YAKUHIN. CO., LTD, 1-32-3, Nishi-Omiya, Nishi-ku, Saitama City, Saitama, Japan
| | - Yousuke Watanabe
- Research Laboratory 2, FUJI YAKUHIN. CO., LTD, Nishi-ku, Iida-Shinden, Saitama City, Saitama, 636-1, Japan
| | - Noriko Chikamatsu
- Research Laboratory 2, FUJI YAKUHIN. CO., LTD, Nishi-ku, Iida-Shinden, Saitama City, Saitama, 636-1, Japan
| | - Tetsuya Taniguchi
- Research Laboratory 2, FUJI YAKUHIN. CO., LTD, Nishi-ku, Iida-Shinden, Saitama City, Saitama, 636-1, Japan
| | - Ryukou Tokuyama
- Research Laboratory 1, FUJI YAKUHIN. CO., LTD, 1-32-3, Nishi-Omiya, Nishi-ku, Saitama City, Saitama, Japan.
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19
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Jiang Y, Pan J, Yang T, Zhao Y, Koh MJ. Nickel-catalyzed site- and stereoselective reductive alkylalkynylation of alkynes. Chem 2021. [DOI: 10.1016/j.chempr.2020.12.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Pan Z, Hu F, Jiang D, Liu Y, Xia C. Chichibabin pyridinium synthesis via oxidative decarboxylation of photoexcited α-enamine acids. Chem Commun (Camb) 2021; 57:1222-1225. [PMID: 33416811 DOI: 10.1039/d0cc07636h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible light-induced decarboxylative Chichibabin pyridinium synthesis between α-amino acids and aldehydes was developed. When the in situ generated α-enamine acids were photoexcited, they were oxidized by aerobic oxygen to give radical cation species. After decarboxylation and further oxidation, the generated iminium undergoes Chichibabin cyclization to afford pyridiniums. This photochemical protocol enables the synthesis of various tetra-substituted pyridiniums and related natural products in one-step.
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Affiliation(s)
- Zhiqiang Pan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Fengchi Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Di Jiang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Yuchang Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
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21
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Parida SK, Mandal T, Das S, Hota SK, De Sarkar S, Murarka S. Single Electron Transfer-Induced Redox Processes Involving N-(Acyloxy)phthalimides. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04756] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sushanta Kumar Parida
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India
| | - Tanumoy Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, West Bengal, India
| | - Sanju Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, West Bengal, India
| | - Sudhir Kumar Hota
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, West Bengal, India
| | - Sandip Murarka
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar-342037, Rajasthan, India
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22
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Dumas A, Garsi JB, Poissonnet G, Hanessian S. Ni-Catalyzed Reductive and Merged Photocatalytic Cross-Coupling Reactions toward sp 3/sp 2-Functionalized Isoquinolones: Creating Diversity at C-6 and C-7 to Address Bioactive Analogues. ACS OMEGA 2020; 5:27591-27606. [PMID: 33134723 PMCID: PMC7594327 DOI: 10.1021/acsomega.0c04181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Naturally occurring isoquinolones have gained considerable attention over the years for their bioactive properties. While the late-stage introduction of various functionalities at certain positions, namely, C-3, C-4, and C-8, has been widely documented, the straightforward introduction of challenging sp3 carbon-linked acyclic aminoalkyl or aza- and oxacyclic appendages at C-6 and C-7 remains largely underexplored. Interest in 6-substituted azacyclic analogues has recently garnered attention in connection with derivatives exhibiting anticancer activity. Reported here is the first application of the versatile and recently emerging field of Ni-catalyzed reductive cross-coupling reactions to the synthesis of 6- and 7- hetero(cyclo)alkyl-substituted isoquinolones. In a second and complementary approach, a new set of C-6- and C-7-substituted positional isomers of hetero(cyclo)alkyl appendages were obtained from the merging of photocatalytic and Ni-catalyzed coupling reactions. In both cases, 6- and 7-bromo isoquinolones served as dual-purpose reacting partners with readily available tosylates and carboxylic acids, respectively.
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Affiliation(s)
- Adrien Dumas
- Department
of Chemistry, Université de Montréal, PO Box 6128, Station Centre-Ville, Montréal, QC, Canada H3C 3J7
| | - Jean-Baptiste Garsi
- Department
of Chemistry, Université de Montréal, PO Box 6128, Station Centre-Ville, Montréal, QC, Canada H3C 3J7
| | - Guillaume Poissonnet
- CentEX
Chemistry, Institut de Recherches Servier, 11 rue des Moulineaux, 92150 Suresnes, France
| | - Stephen Hanessian
- Department
of Chemistry, Université de Montréal, PO Box 6128, Station Centre-Ville, Montréal, QC, Canada H3C 3J7
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23
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Wang X, Zhang S, Cui P, Li S. Modular Synthesis of Drimane Meroterpenoids Leveraging Decarboxylative Borylation and Suzuki Coupling. Org Lett 2020; 22:8702-8707. [PMID: 33108732 DOI: 10.1021/acs.orglett.0c03294] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Drimane meroterpenoids have attracted an increasing amount of attention in the discovery of therapeutically important probes, while the laggard synthetic accessibility is a conspicuous challenge. A new paradigm merging decarboxylative borylation and Suzuki coupling was developed as a powerful platform. Key features include the mild conditions, good chemoselectivity, operational facility, scalability, and easy availability of the coupling partners. This practical strategy enables the expedient formal synthesis of a large number of natural products and rapid generation of analogues.
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Affiliation(s)
- Xia Wang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Shasha Zhang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Pengcheng Cui
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Shengkun Li
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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24
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Liu YA, Liao X, Chen H. Recent Progress in Radical Decarboxylative Functionalizations Enabled by Transition-Metal (Ni, Cu, Fe, Co or Cr) Catalysis. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707273] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AbstractAliphatic carboxylic acids are abundant in natural and synthetic sources and are widely used as connection points in many chemical transformations. Radical decarboxylative functionalization promoted by transition-metal catalysis has achieved great success, enabling carboxylic acids to be easily transformed into a wide variety of products. Herein, we highlight the recent advances made on transition-metal (Ni, Cu, Fe, Co or Cr) catalyzed C–X (X = C, N, H, O, B, or Si) bond formation as well as syntheses of ketones, amino acids, alcohols, ethers and difluoromethyl derivatives via radical decarboxylation of carboxylic acids or their derivatives, including, among others, redox-active esters (RAEs), anhydrides, and diacyl peroxides.1 Introduction2 Ni-Catalyzed Decarboxylative Functionalizations3 Cu-Catalyzed Decarboxylative Functionalizations4 Fe-Catalyzed Decarboxylative Functionalizations5 Co- and Cr-Catalyzed Decarboxylative Functionalizations6 Conclusions
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Affiliation(s)
- Yahu A Liu
- Discovery Chemistry, Genomics Institute of the Novartis Research Foundation
| | - Xuebin Liao
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology, Tsinghua University
| | - Hui Chen
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology, Tsinghua University
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25
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Nguyen VT, Nguyen VD, Haug GC, Vuong NTH, Dang HT, Arman HD, Larionov OV. Visible-Light-Enabled Direct Decarboxylative N-Alkylation. Angew Chem Int Ed Engl 2020; 59:7921-7927. [PMID: 32050048 PMCID: PMC7200280 DOI: 10.1002/anie.201916710] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Indexed: 11/12/2022]
Abstract
The development of efficient and selective C-N bond-forming reactions from abundant feedstock chemicals remains a central theme in organic chemistry owing to the key roles of amines in synthesis, drug discovery, and materials science. Herein, we present a dual catalytic system for the N-alkylation of diverse aromatic carbocyclic and heterocyclic amines directly with carboxylic acids, by-passing their preactivation as redox-active esters. The reaction, which is enabled by visible-light-driven, acridine-catalyzed decarboxylation, provides access to N-alkylated secondary and tertiary anilines and N-heterocycles. Additional examples, including double alkylation, the installation of metabolically robust deuterated methyl groups, and tandem ring formation, further demonstrate the potential of the direct decarboxylative alkylation (DDA) reaction.
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Affiliation(s)
- Vu T Nguyen
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Viet D Nguyen
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Graham C Haug
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Ngan T H Vuong
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Hang T Dang
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Hadi D Arman
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
| | - Oleg V Larionov
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, USA
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26
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Mao Y, Zhao W, Lu S, Yu L, Wang Y, Liang Y, Ni S, Pan Y. Copper-catalysed photoinduced decarboxylative alkynylation: a combined experimental and computational study. Chem Sci 2020; 11:4939-4947. [PMID: 34122950 PMCID: PMC8159226 DOI: 10.1039/d0sc02213f] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Redox-active esters (RAEs) as alkyl radical precursors have demonstrated great advantages for C–C bond formation. A decarboxylative cross-coupling method is described to afford substituted alkynes from various carboxylic acids using copper catalysts CuCl and Cu(acac)2. The photoexcitation of copper acetylides with electron-rich NEt3 as a ligand provides a general strategy to generate a range of alkyl radicals from RAEs of carboxylic acids, which can be readily coupled with a variety of aromatic alkynes. The scope of this cross-coupling reaction can be further expanded to aliphatic alkynes and alkynyl silanes using a catalytic amount of preformed copper-phenylacetylide. In addition, DFT calculations revealed the favorable reaction pathway and that the bidentate acetylacetonate ligand of the copper intermediate plays an important role in inhibiting the homo-coupling of the alkyne. Redox-active esters (RAEs) as alkyl radical precursors have demonstrated great advantages for Cu-catalysed C–C bond formation.![]()
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Affiliation(s)
- Yu Mao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Wenxuan Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Shuo Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Lei Yu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Shengyang Ni
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
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27
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Chen L, Yang JC, Xu P, Zhang JJ, Duan XH, Guo L. Nickel-catalyzed Suzuki Coupling of Cycloalkyl Silyl Peroxides with Boronic Acids. J Org Chem 2020; 85:7515-7525. [DOI: 10.1021/acs.joc.0c00250] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lei Chen
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Cheng Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Pengfei Xu
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Jie Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li−Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
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28
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Shao M, Liang H, Liu Y, Qin W, Li Z. Photo‐Mediated Decarboxylative Cross Coupling of Quinoxalin‐2(1
H
)‐ones with Aliphatic Carboxylic Acids in Aqueous Solution: Synthesis of Alkylated Quinoxalin‐2(1
H
)‐ones and Preliminary Antifungal Evaluation Against
Magnaporthe Grisea. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Manyu Shao
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
| | - Hanbin Liang
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 P. R. China Guangzhou,510642 (P. R. China
| | - Weiwei Qin
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
| | - Zhaodong Li
- Department of Applied ChemistryCollege of Materials and EnergySouth China Agricultural University Guangzhou 510642 P. R. China
- Key Laboratory of Natural Pesticide & Chemical BiologyMinistry of EducationSouth China Agricultural University Guangzhou 510642 P. R. China
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29
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Guo R, Witherspoon BP, Brown MK. Evolution of a Strategy for the Enantioselective Synthesis of (-)-Cajanusine. J Am Chem Soc 2020; 142:5002-5006. [PMID: 32149511 PMCID: PMC7252469 DOI: 10.1021/jacs.0c00359] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The first enantioselective synthesis of (-)-cajanusine is presented. Key features of the route include a rapid synthesis of the [4.2.0]bicyclooctane core by an enantioselective isomerization/stereoselective [2+2]-cycloaddition strategy as well as prominent use of catalytic methods for bond construction. The evolution of the approach is also presented that highlights unexpected roadblocks and how novel solutions were developed.
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Affiliation(s)
- Renyu Guo
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Brittany P Witherspoon
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - M Kevin Brown
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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30
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Nguyen VT, Nguyen VD, Haug GC, Vuong NTH, Dang HT, Arman HD, Larionov OV. Visible‐Light‐Enabled Direct Decarboxylative N‐Alkylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916710] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vu T. Nguyen
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Viet D. Nguyen
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Graham C. Haug
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Ngan T. H. Vuong
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Hang T. Dang
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Hadi D. Arman
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Oleg V. Larionov
- Department of Chemistry The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
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31
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Kaur P, Kumar B, Gurjar KK, Kumar R, Kumar V, Kumar R. Metal- and Solvent-Free Multicomponent Decarboxylative A 3-Coupling for the Synthesis of Propargylamines: Experimental, Computational, and Biological Investigations. J Org Chem 2020; 85:2231-2241. [PMID: 31877044 DOI: 10.1021/acs.joc.9b02806] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Decarboxylative A3-coupling of ortho-hydroxybenzaldehydes, secondary amines, and alkynoic acids is performed under catalyst and solvent-free conditions. The developed methodology provided a waste-free method for the synthesis of hydroxylated propargylamines which are versatile precursors for various bioactive heterocyclic scaffolds. The experimental and density functional theory studies revealed that the in situ-formed ortho-quinonoid intermediate (formed from ortho-hydroxybenzaldehyde and amine) undergoes a concerted Eschweiler-Clarke type decarboxylation with alkynoic acids. The synthesized compounds were evaluated for MAO-A, MAO-B, and AChE inhibitory activities as potential drug candidates for the treatment of various neurological disorders. Compound 4f was found to be the most potent and selective MAO-B (high selectivity over MAO-A) and AChE inhibitor in the series with IC50 values of 4.27 ± 0.07 and 0.79 ± 0.03 μM, respectively.
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32
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Li J, Li F, King-Smith E, Renata H. Merging chemoenzymatic and radical-based retrosynthetic logic for rapid and modular synthesis of oxidized meroterpenoids. Nat Chem 2020; 12:173-179. [PMID: 31959962 PMCID: PMC7250629 DOI: 10.1038/s41557-019-0407-6] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 12/06/2019] [Indexed: 11/09/2022]
Abstract
Meroterpenoids are natural products of hybrid biosynthetic origins-derived from both terpenoid and polyketide pathways-with a wealth of biological activities. Given their therapeutic potential, a general strategy to access these natural products in a concise and divergent fashion is highly desirable. Here, we report a modular synthesis of a suite of oxidized meroterpenoids using a hybrid synthetic strategy that is designed to harness the power of both biocatalytic and radical-based retrosynthetic logic. This strategy enables direct introduction of key hydroxyl groups and rapid construction of key bonds and stereocentres, facilitating the development of a concise route (7-12 steps from commercial materials) to eight oxidized meroterpenoids from two common molecular scaffolds. This work lays the foundation for rapid access to a wide range of oxidized meroterpenoids through the use of similar hybrid strategy that combines two synthetic approaches.
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Affiliation(s)
- Jian Li
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA
| | - Fuzhuo Li
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA
| | - Emma King-Smith
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA
| | - Hans Renata
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA.
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33
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Watanabe E, Chen Y, May O, Ley SV. A Practical Method for Continuous Production of sp3-Rich Compounds from (Hetero)Aryl Halides and Redox-Active Esters. Chemistry 2019; 26:186-191. [PMID: 31692149 DOI: 10.1002/chem.201905048] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Indexed: 12/18/2022]
Abstract
A practically useful coupling reaction between aromatic halides and redox-active esters was realized by nickel catalysis through the use of a packed zinc bed column in continuous flow. Multiple reuse of the column showed a negligible decrease in efficiency, affording high space/time yields. A wide range of substrates, including a number of heteroaryl halides and polyfunctional materials were coupled in generally good yields. Longer-time and larger-scale experiments further demonstrates the robustness of the system.
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Affiliation(s)
- Eiichi Watanabe
- New Path Molecular Ltd., Building 580, Babraham Research Campus, Cambridge, CB22 3AT, UK
| | - Yiding Chen
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Oliver May
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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34
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Shih BH, Basha RS, Lee CF. Nickel-Catalyzed Cross-Coupling of Aryl Redoxactive Esters with Aryl Zinc Reagents. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02913] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bo-Hao Shih
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan, R.O.C
| | - R. Sidick Basha
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan, R.O.C
| | - Chin Fa Lee
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan, R.O.C
- Research Center for Sustainable Energy and Nanotechnology (RCSEN), Taichung 402, Taiwan, R.O.C
- Innovation and Development Center of Sustainable Agriculture (IDCSA), Taichung 402, Taiwan, R.O.C
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35
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Kölmel DK, Meng J, Tsai MH, Que J, Loach RP, Knauber T, Wan J, Flanagan ME. On-DNA Decarboxylative Arylation: Merging Photoredox with Nickel Catalysis in Water. ACS COMBINATORIAL SCIENCE 2019; 21:588-597. [PMID: 31283168 DOI: 10.1021/acscombsci.9b00076] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A new catalytic manifold that merges photoredox with nickel catalysis in aqueous solution is presented. Specifically, the combination of a highly active, yet air-stable, nickel precatalyst with a new electron-deficient pyridyl carboxamidine ligand was key to the development of a water-compatible nickel catalysis platform, which is a crucial requirement for the preparation of DNA-encoded libraries (DELs). Together with an iridium-based photocatalyst and a powerful light source, this dual catalysis approach enabled the efficient decarboxylative arylation of α-amino acids with DNA-tagged aryl halides. This C(sp2)-C(sp3) coupling tolerates a wide variety of functional groups on both the amino acid and the aryl halide substrates. Due to the mild and DNA-compatible reaction conditions, the presented transformation holds great potential for the construction of DELs. This was further evidenced by showing that well plate-compatible LED arrays can serve as competent light sources to facilitate parallel synthesis. Lastly, we demonstrate that this procedure can serve as a blueprint toward the adaptation of other established nickel metallaphotoredox transformations to the idiosyncratic requirements of a DEL.
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Affiliation(s)
- Dominik K. Kölmel
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Jiang Meng
- HitGen Inc, Building 6, No. 8, Huigu first East Road, Tianfu
International Bio-Town, Shuangliu District, Chengdu City, Sichuan Province, P. R. China
| | - Mei-Hsuan Tsai
- HitGen Inc, Building 6, No. 8, Huigu first East Road, Tianfu
International Bio-Town, Shuangliu District, Chengdu City, Sichuan Province, P. R. China
| | - Jiamin Que
- HitGen Inc, Building 6, No. 8, Huigu first East Road, Tianfu
International Bio-Town, Shuangliu District, Chengdu City, Sichuan Province, P. R. China
| | - Richard P. Loach
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Thomas Knauber
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Jinqiao Wan
- HitGen Inc, Building 6, No. 8, Huigu first East Road, Tianfu
International Bio-Town, Shuangliu District, Chengdu City, Sichuan Province, P. R. China
| | - Mark E. Flanagan
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
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36
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Ni S, Padial NM, Kingston C, Vantourout JC, Schmitt DC, Edwards JT, Kruszyk MM, Merchant RR, Mykhailiuk PK, Sanchez BB, Yang S, Perry MA, Gallego GM, Mousseau JJ, Collins MR, Cherney RJ, Lebed PS, Chen JS, Qin T, Baran PS. A Radical Approach to Anionic Chemistry: Synthesis of Ketones, Alcohols, and Amines. J Am Chem Soc 2019; 141:6726-6739. [PMID: 30943023 DOI: 10.1021/jacs.9b02238] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Historically accessed through two-electron, anionic chemistry, ketones, alcohols, and amines are of foundational importance to the practice of organic synthesis. After placing this work in proper historical context, this Article reports the development, full scope, and a mechanistic picture for a strikingly different way of forging such functional groups. Thus, carboxylic acids, once converted to redox-active esters (RAEs), can be utilized as formally nucleophilic coupling partners with other carboxylic derivatives (to produce ketones), imines (to produce benzylic amines), or aldehydes (to produce alcohols). The reactions are uniformly mild, operationally simple, and, in the case of ketone synthesis, broad in scope (including several applications to the simplification of synthetic problems and to parallel synthesis). Finally, an extensive mechanistic study of the ketone synthesis is performed to trace the elementary steps of the catalytic cycle and provide the end-user with a clear and understandable rationale for the selectivity, role of additives, and underlying driving forces involved.
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Affiliation(s)
- Shengyang Ni
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Natalia M Padial
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Cian Kingston
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Julien C Vantourout
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Daniel C Schmitt
- Pfizer Medicinal Sciences , Eastern Point Road , Groton , Connecticut 06340 , United States
| | - Jacob T Edwards
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Monika M Kruszyk
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Rohan R Merchant
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Pavel K Mykhailiuk
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States.,Enamine Ltd. , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,Chemistry Department , Taras Shevchenko National University of Kyiv , Volodymyrska 64 , 01601 Kyiv , Ukraine
| | - Brittany B Sanchez
- Automated Synthesis Facility , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Shouliang Yang
- Department of Chemistry , La Jolla Laboratories , Pfizer 10770 Science Center Drive , San Diego , California 92121 , United States
| | - Matthew A Perry
- Pfizer Medicinal Sciences , Eastern Point Road , Groton , Connecticut 06340 , United States
| | - Gary M Gallego
- Department of Chemistry , La Jolla Laboratories , Pfizer 10770 Science Center Drive , San Diego , California 92121 , United States
| | - James J Mousseau
- Pfizer Medicinal Sciences , Eastern Point Road , Groton , Connecticut 06340 , United States
| | - Michael R Collins
- Department of Chemistry , La Jolla Laboratories , Pfizer 10770 Science Center Drive , San Diego , California 92121 , United States
| | - Robert J Cherney
- Research & Development , Bristol-Myers Squibb Company , Rt. 206 & Province Line Road , Princeton , New Jersey 08543 , United States
| | - Pavlo S Lebed
- Enamine Ltd. , Chervonotkatska 78 , 02094 Kyiv , Ukraine.,ChemBioCenter , Taras Shevchenko National University of Kyiv , Volodymyrska 64 , 01601 Kyiv , Ukraine
| | - Jason S Chen
- Automated Synthesis Facility , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Tian Qin
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Phil S Baran
- Department of Chemistry , Scripps Research , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
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37
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Heravi MM, Zadsirjan V, Hajiabbasi P, Hamidi H. Advances in Kumada–Tamao–Corriu cross-coupling reaction: an update. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-2364-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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38
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Prabhala P, Savanur HM, Kalkhambkar RG, Laali KK. Facile Access to Diverse Libraries of Internal Alkynes via Sequential Iododediazoniation/Decarboxylative Sonogashira Reaction in Imidazolium ILs without Ligand or Additive. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900093] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Pavankumar Prabhala
- Department of Chemistry; Karnatak University's Karnatak Science College; 580001 Dharwad Karnatak India
| | - Hemantkumar M. Savanur
- Department of Chemistry; Karnatak University's Karnatak Science College; 580001 Dharwad Karnatak India
| | - Rajesh G. Kalkhambkar
- Department of Chemistry; Karnatak University's Karnatak Science College; 580001 Dharwad Karnatak India
| | - Kenneth K. Laali
- Department of Chemistry; University of North Florida; 1 UNF Drive 32224 Jacksonville FL USA
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39
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Chen TG, Zhang H, Mykhailiuk PK, Merchant RR, Smith CA, Qin T, Baran PS. Quaternary Centers by Nickel-Catalyzed Cross-Coupling of Tertiary Carboxylic Acids and (Hetero)Aryl Zinc Reagents. Angew Chem Int Ed Engl 2019; 58:2454-2458. [PMID: 30623547 PMCID: PMC6391118 DOI: 10.1002/anie.201814524] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Indexed: 01/07/2023]
Abstract
This work bridges a gap in the cross-coupling of aliphatic redox-active esters with aryl zinc reagents. Previously limited to primary, secondary, and specialized tertiary centers, a new protocol has been devised to enable the coupling of general tertiary systems using nickel catalysis. The scope of this operationally simple method is broad, and it can be used to simplify the synthesis of medicinally relevant motifs bearing quaternary centers.
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Affiliation(s)
- Tie-Gen Chen
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Haolin Zhang
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Pavel K Mykhailiuk
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
- Enamine Ltd., Chervonotkatska 78, 02094, Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601, Kyiv, Ukraine
| | - Rohan R Merchant
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Courtney A Smith
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Tian Qin
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Phil S Baran
- Department of Chemistry, Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
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40
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Rahman M, Mukherjee A, Kovalev IS, Kopchuk DS, Zyryanov GV, Tsurkan MV, Majee A, Ranu BC, Charushin VN, Chupakhin ON, Santra S. Recent Advances on Diverse Decarboxylative Reactions of Amino Acids. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801331] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Matiur Rahman
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
| | - Anindita Mukherjee
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
| | - Igor S. Kovalev
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
| | - Dmitry S. Kopchuk
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
- I. Ya. Postovskiy Institute of Organic SynthesisUral Division of the Russian Academy of Sciences 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Grigory V. Zyryanov
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
- I. Ya. Postovskiy Institute of Organic SynthesisUral Division of the Russian Academy of Sciences 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Mikhail V. Tsurkan
- Max Bergmann Center of BiomaterialsLeibniz Institute of Polymer Research Hohe Strasse 6 01069 Dresden Germany
| | - Adinath Majee
- Department of ChemistryVisva-Bharati (A Central University) Santiniketan 731235 India
| | - Brindaban C. Ranu
- Department of Organic ChemistryIndian Association for the Cultivation of Science, Jadavpur Kolkata 700032 India
| | - Valery N. Charushin
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
- I. Ya. Postovskiy Institute of Organic SynthesisUral Division of the Russian Academy of Sciences 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Oleg N. Chupakhin
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
- I. Ya. Postovskiy Institute of Organic SynthesisUral Division of the Russian Academy of Sciences 22 S. Kovalevskoy Str. Yekaterinburg 620219 Russian Federation
| | - Sougata Santra
- Department of Organic & Biomolecular Chemistry, Chemical Engineering InstituteUral Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
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41
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Chen TG, Zhang H, Mykhailiuk PK, Merchant RR, Smith CA, Qin T, Baran PS. Quaternary Centers by Nickel-Catalyzed Cross-Coupling of Tertiary Carboxylic Acids and (Hetero)Aryl Zinc Reagents. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814524] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tie-Gen Chen
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Haolin Zhang
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Pavel K. Mykhailiuk
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
- Enamine Ltd.; Chervonotkatska 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Chemistry Department; Volodymyrska 64 01601 Kyiv Ukraine
| | - Rohan R. Merchant
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Courtney A. Smith
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Tian Qin
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Phil S. Baran
- Department of Chemistry; Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
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42
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Koyanagi T, Herath A, Chong A, Ratnikov M, Valiere A, Chang J, Molteni V, Loren J. One-Pot Electrochemical Nickel-Catalyzed Decarboxylative Sp 2-Sp 3 Cross-Coupling. Org Lett 2019; 21:816-820. [PMID: 30673257 DOI: 10.1021/acs.orglett.8b04090] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot electrochemical nickel-catalyzed decarboxylative sp2-sp3 cross-coupling reaction has been developed using redox-active esters prepared in situ from alkyl carboxylates and N-hydroxyphthalimide tetramethyluronium hexafluorophosphate (PITU). This undivided cell one-pot method enables C-C bond formation using inexpensive, benchtop-stable reagents with isolated yields up to 95% with good functional group tolerance, which includes nitrile, ketone, ester, alkene and selectivity over other aromatic halogens.
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Affiliation(s)
- Takaoki Koyanagi
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
| | - Ananda Herath
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
| | - Ashley Chong
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
| | - Maxim Ratnikov
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
| | - Andrew Valiere
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
| | - Jim Chang
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
| | - Valentina Molteni
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
| | - Jon Loren
- Genomics Institute of the Novartis Research Foundation , 10675 John Jay Hopkins Drive , San Diego , California 92121 , United States
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43
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Kingston C, Wallace MA, Allentoff AJ, deGruyter JN, Chen JS, Gong SX, Bonacorsi S, Baran PS. Direct Carbon Isotope Exchange through Decarboxylative Carboxylation. J Am Chem Soc 2019; 141:774-779. [PMID: 30605319 DOI: 10.1021/jacs.8b12035] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A two-step degradation-reconstruction approach to the carbon-14 radiolabeling of alkyl carboxylic acids is presented. Simple activation via redox-active ester formation was followed by nickel-mediated decarboxylative carboxylation to afford a range of complex compounds with ample isotopic incorporations for drug metabolism and pharmacokinetic studies. The practicality and operational simplicity of the protocol were demonstrated by its use in an industrial carbon-14 radiolabeling setting.
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Affiliation(s)
- Cian Kingston
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Michael A Wallace
- Radiochemistry , Bristol-Myers Squibb Company , P.O. Box 4000, Princeton , New Jersey 08543 , United States
| | - Alban J Allentoff
- Radiochemistry , Bristol-Myers Squibb Company , P.O. Box 4000, Princeton , New Jersey 08543 , United States
| | - Justine N deGruyter
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Jason S Chen
- Automated Synthesis Facility , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Sharon X Gong
- Radiochemistry , Bristol-Myers Squibb Company , P.O. Box 4000, Princeton , New Jersey 08543 , United States
| | - Samuel Bonacorsi
- Radiochemistry , Bristol-Myers Squibb Company , P.O. Box 4000, Princeton , New Jersey 08543 , United States
| | - Phil S Baran
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
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44
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Chen Y. Recent Advances in Methylation: A Guide for Selecting Methylation Reagents. Chemistry 2018; 25:3405-3439. [DOI: 10.1002/chem.201803642] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Cardiovascular, Renal and Metabolism, IMED Biotech UnitAstraZeneca Gothenburg Sweden
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45
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Cheng WM, Shang R, Fu Y. Irradiation-induced palladium-catalyzed decarboxylative desaturation enabled by a dual ligand system. Nat Commun 2018; 9:5215. [PMID: 30523253 PMCID: PMC6283874 DOI: 10.1038/s41467-018-07694-w] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/20/2018] [Indexed: 01/19/2023] Open
Abstract
Generation of alkenes through decarboxyolefination of alkane carboxylates has significant synthetic value in view of the easy availability of a variety of carboxylic acids and the synthetic versatility of alkenes. Herein we report that palladium catalysts under irradiation with blue LEDs (440 nm) catalyze decarboxylative desaturation of a variety of aliphatic carboxylates to generate aliphatic alkenes, styrenes, enol ethers, enamides, and peptide enamides under mild conditions. The selection of a dual phosphine ligand system is the key enabler for the successful development of this reaction. The Pd-catalyzed decarboxylative desaturation is utilized to achieve a three-step divergent synthesis of Chondriamide A and Chondriamide C in overall 68% yield from simple starting materials. Mechanistic studies suggest that, distinct from palladium catalysis under thermal condition, irradiation-induced palladium catalysis involves irradiation-induced single-electron transfer and dynamic ligand-dissociation/association process to allow two phosphine ligand to work synergistically. Production of alkenes through decarboxyolefination of carboxylates is a synthetically useful process. Here, the authors report a palladium/dual ligand-enabled decarboxylative desaturation reaction under mild irradiation conditions and apply it to the synthesis of Chondriamide A and C.
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Affiliation(s)
- Wan-Min Cheng
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, China
| | - Rui Shang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, China.
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, Department of Chemistry, University of Science and Technology of China, 230026, Hefei, China.
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46
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Ni S, Garrido-Castro AF, Merchant RR, de Gruyter JN, Schmitt DC, Mousseau JJ, Gallego GM, Yang S, Collins MR, Qiao JX, Yeung KS, Langley DR, Poss MA, Scola PM, Qin T, Baran PS. A General Amino Acid Synthesis Enabled by Innate Radical Cross-Coupling. Angew Chem Int Ed Engl 2018; 57:14560-14565. [PMID: 30212610 PMCID: PMC6352899 DOI: 10.1002/anie.201809310] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Indexed: 01/21/2023]
Abstract
The direct union of primary, secondary, and tertiary carboxylic acids with a chiral glyoxylate-derived sulfinimine provides rapid access into a variety of enantiomerically pure α-amino acids (>85 examples). Characterized by operational simplicity, this radical-based reaction enables the modular assembly of exotic α-amino acids, including both unprecedented structures and those of established industrial value. The described method performs well in high-throughput library synthesis, and has already been implemented in three distinct medicinal chemistry campaigns.
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Affiliation(s)
- Shengyang Ni
- Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | | | - Rohan R Merchant
- Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | | | - Daniel C Schmitt
- Pfizer Medicinal Sciences, Eastern Point Road, Groton, CT, 06340, USA
| | - James J Mousseau
- Pfizer Medicinal Sciences, Eastern Point Road, Groton, CT, 06340, USA
| | - Gary M Gallego
- Department of Chemistry, La Jolla Laboratories, Pfizer, 10770 Science Center Drive, San Diego, CA, 92121, USA
| | - Shouliang Yang
- Department of Chemistry, La Jolla Laboratories, Pfizer, 10770 Science Center Drive, San Diego, CA, 92121, USA
| | - Michael R Collins
- Department of Chemistry, La Jolla Laboratories, Pfizer, 10770 Science Center Drive, San Diego, CA, 92121, USA
| | - Jennifer X Qiao
- Department of Discovery Chemistry, Bristol-Myers Squibb Company, Research and Development, P.O. Box 4000, Princeton, NJ, 08543, USA
| | - Kap-Sun Yeung
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT, 06492, USA
| | - David R Langley
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT, 06492, USA
| | - Michael A Poss
- Department of Discovery Chemistry, Bristol-Myers Squibb Company, Research and Development, P.O. Box 4000, Princeton, NJ, 08543, USA
| | - Paul M Scola
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT, 06492, USA
| | - Tian Qin
- Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Phil S Baran
- Scripps Research, North Torrey Pines Road, La Jolla, CA, 92037, USA
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Ni S, Garrido-Castro AF, Merchant RR, de Gruyter JN, Schmitt DC, Mousseau JJ, Gallego GM, Yang S, Collins MR, Qiao JX, Yeung KS, Langley DR, Poss MA, Scola PM, Qin T, Baran PS. A General Amino Acid Synthesis Enabled by Innate Radical Cross-Coupling. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809310] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shengyang Ni
- Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | | | | | | | | | | | - Gary M. Gallego
- Department of Chemistry; La Jolla Laboratories; Pfizer; 10770 Science Center Drive San Diego CA 92121 USA
| | - Shouliang Yang
- Department of Chemistry; La Jolla Laboratories; Pfizer; 10770 Science Center Drive San Diego CA 92121 USA
| | - Michael R. Collins
- Department of Chemistry; La Jolla Laboratories; Pfizer; 10770 Science Center Drive San Diego CA 92121 USA
| | - Jennifer X. Qiao
- Department of Discovery Chemistry; Bristol-Myers Squibb Company; Research and Development; P.O. Box 4000 Princeton NJ 08543 USA
| | - Kap-Sun Yeung
- Department of Discovery Chemistry; Bristol-Myers Squibb Research and Development; 5 Research Parkway Wallingford CT 06492 USA
| | - David R. Langley
- Department of Discovery Chemistry; Bristol-Myers Squibb Research and Development; 5 Research Parkway Wallingford CT 06492 USA
| | - Michael A. Poss
- Department of Discovery Chemistry; Bristol-Myers Squibb Company; Research and Development; P.O. Box 4000 Princeton NJ 08543 USA
| | - Paul M. Scola
- Department of Discovery Chemistry; Bristol-Myers Squibb Research and Development; 5 Research Parkway Wallingford CT 06492 USA
| | - Tian Qin
- Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
| | - Phil S. Baran
- Scripps Research; North Torrey Pines Road La Jolla CA 92037 USA
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48
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Chen H, Hu L, Ji W, Yao L, Liao X. Nickel-Catalyzed Decarboxylative Alkylation of Aryl Iodides with Anhydrides. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03396] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hui Chen
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Lu Hu
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Wenzhi Ji
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Licheng Yao
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Xuebin Liao
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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49
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Maxwell BD. New radical methods for the potential synthesis of carbon-13 and carbon-14 labeled complex products. J Labelled Comp Radiopharm 2018; 61:1024-1035. [DOI: 10.1002/jlcr.3680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/10/2018] [Accepted: 08/14/2018] [Indexed: 01/03/2023]
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50
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Wang J, Shang M, Lundberg H, Feu KS, Hecker SJ, Qin T, Blackmond DG, Baran PS. Cu-Catalyzed Decarboxylative Borylation. ACS Catal 2018; 8:9537-9542. [PMID: 30505624 PMCID: PMC6257631 DOI: 10.1021/acscatal.8b02928] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/07/2018] [Indexed: 12/15/2022]
Abstract
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A simple
method for the conversion of carboxylic acids to boronic
esters via redox-active esters (RAEs) is reported using copper catalysis.
The scope of this transformation is broad, and compared with the known
protocols available, it represents the most inexpensive, rapid, and
operationally simple option. In addition to a full exploration of
the scope, a kinetic study was performed to elucidate substrate and
reagent concentration dependences.
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Affiliation(s)
- Jie Wang
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Ming Shang
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Helena Lundberg
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Karla S. Feu
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Scott J. Hecker
- The Medicines Company, 3013 Science Park Road, San Diego, California 92121, United States
| | - Tian Qin
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Donna G. Blackmond
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
| | - Phil S. Baran
- Department of Chemistry, The Scripps Research Institute (TSRI), North Torrey Pines Road, La Jolla, California 92037, United States
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