1
|
Just D, Gonçalves CR, Vezonik U, Kaiser D, Maulide N. General acid-mediated aminolactone formation using unactivated alkenes. Chem Sci 2023; 14:10806-10811. [PMID: 37829023 PMCID: PMC10566462 DOI: 10.1039/d3sc04073a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023] Open
Abstract
Spirocyclic butyrolactones and butenolides are widespread structural motifs in bioactive substances. Despite their prevalence, a simple method ensuring their direct preparation from exocyclic alkenes, ideally in a late-stage context, remains elusive. Herein, we report direct aminolactone formation using unactivated alkenes which addresses this gap, employing cheap and readily available reactants. The method relies on the hijacking of a cationic aminoalkylation pathway and affords (spiro)aminolactones with excellent functional group tolerance and chemoselectivity. The synthetic versatility of the products is demonstrated through a range of transformations, notably exploiting stereospecific rearrangement chemistry to produce sterically congested scaffolds.
Collapse
Affiliation(s)
- David Just
- Institute of Organic Chemistry, University of Vienna Währinger Straße 38 1090 Vienna Austria
| | - Carlos R Gonçalves
- Institute of Organic Chemistry, University of Vienna Währinger Straße 38 1090 Vienna Austria
| | - Uroš Vezonik
- Institute of Organic Chemistry, University of Vienna Währinger Straße 38 1090 Vienna Austria
| | - Daniel Kaiser
- Institute of Organic Chemistry, University of Vienna Währinger Straße 38 1090 Vienna Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna Währinger Straße 38 1090 Vienna Austria
| |
Collapse
|
2
|
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.
Collapse
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
| |
Collapse
|
3
|
Latrache M, Hoffmann N. Photochemical radical cyclization reactions with imines, hydrazones, oximes and related compounds. Chem Soc Rev 2021; 50:7418-7435. [PMID: 34047736 DOI: 10.1039/d1cs00196e] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Photochemical reactions are a key method to generate radical intermediates. Often under these conditions no toxic reagents are necessary. During recent years, photo-redox catalytic reactions considerably push this research domain. These reaction conditions are particularly mild and safe which enables the transformation of poly-functional substrates into complex products. The synthesis of heterocyclic compounds is particularly important since they play an important role in the research of biologically active products. In this review, photochemical radical cyclization reactions of imines and related compounds such as oximes, hydrazones and chloroimines are presented. Reaction mechanisms are discussed and the structural diversity and complexity of the products are presented. Radical intermediates are mainly generated in two ways: (1) electronic excitation is achieved by light absorption of the substrates. (2) The application of photoredox catalysis is now systematically studied for these reactions. Recently, also excitation of charge transfer complexes has been studied in this context from many perspectives.
Collapse
Affiliation(s)
- Mohammed Latrache
- CNRS, Université de Reims Champagne-Ardenne, ICMR, Equipe de Photochimie, UFR Sciences, B.P. 1039, 51687 Reims, France.
| | - Norbert Hoffmann
- CNRS, Université de Reims Champagne-Ardenne, ICMR, Equipe de Photochimie, UFR Sciences, B.P. 1039, 51687 Reims, France.
| |
Collapse
|
4
|
Sharma S, Singh J, Sharma A. Visible Light Assisted Radical‐Polar/Polar‐Radical Crossover Reactions in Organic Synthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100205] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shivani Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Jitender Singh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Anuj Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| |
Collapse
|
5
|
Moreno CJ, Hernández K, Charnok SJ, Gittings S, Bolte M, Joglar J, Bujons J, Parella T, Clapés P. Synthesis of γ-Hydroxy-α-amino Acid Derivatives by Enzymatic Tandem Aldol Addition-Transamination Reactions. ACS Catal 2021; 11:4660-4669. [PMID: 34603828 PMCID: PMC8482765 DOI: 10.1021/acscatal.1c00210] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/20/2021] [Indexed: 12/26/2022]
Abstract
![]()
Three
enzymatic routes toward γ-hydroxy-α-amino acids
by tandem aldol addition–transamination one-pot two-step reactions
are reported. The approaches feature an enantioselective aldol addition
of pyruvate to various nonaromatic aldehydes catalyzed by trans-o-hydroxybenzylidene pyruvate hydratase-aldolase
(HBPA) from Pseudomonas putida. This
affords chiral 4-hydroxy-2-oxo acids, which were subsequently enantioselectively
aminated using S-selective transaminases. Three transamination
processes were investigated involving different amine donors and transaminases:
(i) l-Ala as an amine donor with pyruvate recycling, (ii)
a benzylamine donor using benzaldehyde lyase from Pseudomonas
fluorescens Biovar I (BAL) to transform the benzaldehyde
formed into benzoin, minimizing equilibrium limitations, and (iii) l-Glu as an amine donor with a double cascade comprising branched-chain
α-amino acid aminotransferase (BCAT) and aspartate amino transferase
(AspAT), both from E. coli, using l-Asp as a substrate to regenerate l-Glu. The γ-hydroxy-α-amino
acids thus obtained were transformed into chiral α-amino-γ-butyrolactones,
structural motifs found in many biologically active compounds and
valuable intermediates for the synthesis of pharmaceutical agents.
Collapse
Affiliation(s)
- Carlos J. Moreno
- Institute for Advanced Chemistry of Catalonia, Department of Biological Chemistry, IQAC-CSIC, Jordi Girona 18-24, Barcelona 08034, Spain
| | - Karel Hernández
- Institute for Advanced Chemistry of Catalonia, Department of Biological Chemistry, IQAC-CSIC, Jordi Girona 18-24, Barcelona 08034, Spain
| | - Simon J. Charnok
- Prozomix Ltd. West End Industrial Estate, Haltwhistle, Northumberland NE49 9HA, U.K
| | - Samantha Gittings
- Prozomix Ltd. West End Industrial Estate, Haltwhistle, Northumberland NE49 9HA, U.K
| | - Michael Bolte
- Institut für Anorganische Chemie, J.-W.-Goethe-Universität, Frankfurt/Main, Germany
| | - Jesús Joglar
- Institute for Advanced Chemistry of Catalonia, Department of Biological Chemistry, IQAC-CSIC, Jordi Girona 18-24, Barcelona 08034, Spain
| | - Jordi Bujons
- Institute for Advanced Chemistry of Catalonia, Department of Biological Chemistry, IQAC-CSIC, Jordi Girona 18-24, Barcelona 08034, Spain
| | - Teodor Parella
- Servei de Ressonància Magnètica Nuclear, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pere Clapés
- Institute for Advanced Chemistry of Catalonia, Department of Biological Chemistry, IQAC-CSIC, Jordi Girona 18-24, Barcelona 08034, Spain
| |
Collapse
|
6
|
Yadav D, Srivastava A, Ansari MA, Singh MS. Unusual Behavior of Ketoximes: Reagentless Photochemical Pathway to Alkynyl Sulfides. J Org Chem 2021; 86:5908-5921. [PMID: 33821649 DOI: 10.1021/acs.joc.1c00417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The unique properties of ketoximes are used prominently for the synthesis of heterocycles. In contrast, their potential to absorb light and photoelectron transfer processes remains challenging. Widespread interest in controlling direct excitation of ketoxime tacticity unlocks unconventional reaction pathways, enabling photochemical intramolecular skeletal modification to constitute alkynyl sulfides that cannot be realized via traditional activation. Despite decades of advancements, the alkynyl sulfides, particularly those composed of polar functionalities and derived from renewable sources, remain unknown. These findings demonstrate the importance of decelerated ketoxime from β-oxodithioester for the identification of reaction conditions. The method uses mild reaction conditions to generate excited-state photoreductant for the functionalization of an array of alkynyl sulfides. Additionally, a fundamental understanding of elementary steps using electrochemical and spectroscopic techniques/experiments revealed a PCET pathway to this transformation, while the involved substrates and their properties with improved economical tools indicated the translational potential of this method.
Collapse
Affiliation(s)
- Dhananjay Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Abhijeet Srivastava
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Monish Arbaz Ansari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| |
Collapse
|
7
|
Affiliation(s)
- Sebastián Martínez
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Lukas Veth
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Bruno Lainer
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Paweł Dydio
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, 67000 Strasbourg, France
| |
Collapse
|
8
|
Hur J, Jang J, Sim J. A Review of the Pharmacological Activities and Recent Synthetic Advances of γ-Butyrolactones. Int J Mol Sci 2021; 22:2769. [PMID: 33803380 PMCID: PMC7967234 DOI: 10.3390/ijms22052769] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 02/06/2023] Open
Abstract
γ-Butyrolactone, a five-membered lactone moiety, is one of the privileged structures of diverse natural products and biologically active small molecules. Because of their broad spectrum of biological and pharmacological activities, synthetic methods for γ-butyrolactones have received significant attention from synthetic and medicinal chemists for decades. Recently, new developments and improvements in traditional methods have been reported by considering synthetic efficiency, feasibility, and green chemistry. In this review, the pharmacological activities of natural and synthetic γ-butyrolactones are described, including their structures and bioassay methods. Mainly, we summarize recent advances, occurring during the past decade, in the construction of γ-butyrolactone classified based on the bond formation in γ-butyrolactone between (i) C5-O1 bond, (ii) C4-C5 and C2-O1 bonds, (iii) C3-C4 and C2-O1 bonds, (iv) C3-C4 and C5-O1 bonds, (v) C2-C3 and C2-O1 bonds, (vi) C3-C4 bond, and (vii) C2-O1 bond. In addition, the application to the total synthesis of natural products bearing γ-butyrolactone scaffolds is described.
Collapse
Affiliation(s)
- Joonseong Hur
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), 679 Saimdang-ro, Gangneung 25451, Korea;
| | - Jaebong Jang
- College of Pharmacy, Korea University, Sejong 30019, Korea
| | - Jaehoon Sim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| |
Collapse
|
9
|
Friestad GK, Cullen STJ. Synthesis of Chiral Amines by C–C Bond Formation with Photoredox Catalysis. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1396-8343] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
AbstractChiral amines are key substructures of biologically active natural products and drug candidates. The advent of photoredox catalysis has changed the way synthetic chemists think about building these substructures, opening new pathways that were previously unavailable. New developments in this area are reviewed, with an emphasis on C–C bond constructions involving radical intermediates generated through photoredox processes.1 Introduction2 Radical–Radical Coupling of α-Amino Radicals2.1 Radical–Radical Coupling Involving Amine Oxidation2.2 Radical–Radical Coupling Involving Imine Reduction2.3 Couplings Involving both Amine Oxidation and Imine Reduction3 Addition Reactions of α-Amino Radicals3.1 Conjugate Additions of α-Amino Radicals3.2 Addition of α-Amino Radicals to Heteroaromatic Systems3.3 Cross Coupling via Additions to Transition Metal Complexes4 Radical Addition to C=N Bonds Using Photoredox Catalysis4.1 Intramolecular Radical Addition to C=N Bonds4.2 Intermolecular Radical Addition to C=N Bonds5 Conclusion
Collapse
|
10
|
Yang WP, Jia SK, Liu TT, Hua YZ, Wang MC. Dinuclear zinc-catalyzed asymmetric [3 + 2] cyclization reaction for direct assembly of chiral α-amino-γ-butyrolactones bearing three stereocenters. Org Chem Front 2021. [DOI: 10.1039/d1qo01338f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A highly atom-economic and novel enantioselective [3 + 2] cyclization reaction for the construction of optical α-amino-γ-butyrolactones possessing three stereocenters.
Collapse
Affiliation(s)
- Wen-Peng Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Shi-Kun Jia
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Tian-Tian Liu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Yuan-Zhao Hua
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Min-Can Wang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| |
Collapse
|
11
|
Santos MS, Betim HLI, Kisukuri CM, Campos Delgado JA, Corrêa AG, Paixão MW. Photoredox Catalysis toward 2-Sulfenylindole Synthesis through a Radical Cascade Process. Org Lett 2020; 22:4266-4271. [DOI: 10.1021/acs.orglett.0c01297] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Marilia S. Santos
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Hugo L. I. Betim
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Camila M. Kisukuri
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Jose Antonio Campos Delgado
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Arlene G. Corrêa
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| | - Márcio W. Paixão
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, Rodovia Washington Luís, km 235, São Carlos, SP 13565-905, Brazil
| |
Collapse
|
12
|
Tatunashvili E, Chan B, Nashar PE, McErlean CSP. σ-Bond initiated generation of aryl radicals from aryl diazonium salts. Org Biomol Chem 2020; 18:1812-1819. [PMID: 32096533 DOI: 10.1039/d0ob00205d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
σ-Bond nucleophiles and molecular oxygen transform aryl diazonium salts into aryl radicals. Experimental and computational studies show that Hantzsch esters transfer hydride to aryl diazonium species, and that oxygen initiates radical fragmentation of the diazene intermediate to produce aryl radicals. The operational simplicity of this addition-fragmentation process for the generation of aryl radicals, by a polar-radical crossover mechanism, has been illustrated in a variety of bond-forming reactions.
Collapse
Affiliation(s)
| | - Bun Chan
- Graduate School of Engineering, Nagasaki University, Bunkyo-machi 1-14, Nagasaki-shi, Nagasaki 852-8521, Japan
| | - Philippe E Nashar
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia.
| | | |
Collapse
|
13
|
Bao Z, Xian C, Yuan Q, Liu G, Wu J. Natural Polymer-Based Hydrogels with Enhanced Mechanical Performances: Preparation, Structure, and Property. Adv Healthc Mater 2019; 8:e1900670. [PMID: 31364824 DOI: 10.1002/adhm.201900670] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/03/2019] [Indexed: 12/14/2022]
Abstract
Hydrogels based on natural polymers have bright application prospects in biomedical fields due to their outstanding biocompatibility and biodegradability. However, the poor mechanical performances of pure natural polymer-based hydrogels greatly limit their application prospects. Recently, a variety of strategies has been applied to prepare natural polymer-based hydrogels with enhanced mechanical properties, which generally exhibit stiffening, strengthening, and stretchable behaviors. This article summarizes the recent progress of natural polymer-based hydrogels with enhanced mechanical properties. From a structure point of view, four kinds of hydrogel are reviewed; double network hydrogels, nanocomposite hydrogels, click chemistry-based hydrogels, and supramolecular hydrogels. For each typical hydrogel, its preparation, structure, and mechanical performance are introduced in detail. At the end of this article, the current challenges and future prospects of hydrogels based on natural polymers are discussed and it is pointed out that 3D printing may offer a new platform for the development of natural polymer-based hydrogels.
Collapse
Affiliation(s)
- Ziting Bao
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Caihong Xian
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Qijuan Yuan
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Guiting Liu
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
| | - Jun Wu
- School of Biomedical EngineeringSun Yat‐sen University Guangzhou 510275 Guangdong P. R. China
- Research Institute of Sun Yat‐Sen University in Shenzhen Shenzhen 518057 Guangdong P. R. China
| |
Collapse
|
14
|
Hori H, Arai S, Nishida A. Cobalt-catalyzed cyclization with the introduction of cyano, acyl and aminoalkyl groups. Org Biomol Chem 2019; 17:4783-4788. [PMID: 31033992 DOI: 10.1039/c9ob00637k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An efficient synthesis of carbo- and heterocycles using C[double bond, length as m-dash]C, C[double bond, length as m-dash]O and C[double bond, length as m-dash]N bonds under cobalt catalysis is described. The substituents on olefins are key for controlling the regio- and chemoselectivity in the initial hydrogen atom transfer step and quaternary carbons are efficiently constructed under mild conditions. Cyclopropane cleavage and tandem cyclization give highly functionalized bicyclic skeletons in a single operation.
Collapse
Affiliation(s)
- Hiroto Hori
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 2608675, Japan.
| | | | | |
Collapse
|
15
|
Milligan JA, Phelan JP, Badir SO, Molander GA. Alkyl Carbon-Carbon Bond Formation by Nickel/Photoredox Cross-Coupling. Angew Chem Int Ed Engl 2019; 58:6152-6163. [PMID: 30291664 PMCID: PMC6551614 DOI: 10.1002/anie.201809431] [Citation(s) in RCA: 387] [Impact Index Per Article: 77.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Indexed: 11/10/2022]
Abstract
The union of photoredox and nickel catalysis has resulted in a renaissance in radical chemistry as well as in the use of nickel-catalyzed transformations, specifically for carbon-carbon bond formation. Collectively, these advances address the longstanding challenge of late-stage cross-coupling of functionalized alkyl fragments. Empowered by the notion that photocatalytically generated alkyl radicals readily undergo capture by Ni complexes, wholly new feedstocks for cross-coupling have been realized. Herein, we highlight recent developments in several types of alkyl cross-couplings that are accessible exclusively through this approach.
Collapse
Affiliation(s)
- John A Milligan
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
| | - James P Phelan
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
| | - Shorouk O Badir
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
| | - Gary A Molander
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA, 19104-6323, USA
| |
Collapse
|
16
|
Pawlowski R, Stanek F, Stodulski M. Recent Advances on Metal-Free, Visible-Light- Induced Catalysis for Assembling Nitrogen- and Oxygen-Based Heterocyclic Scaffolds. Molecules 2019; 24:E1533. [PMID: 31003464 PMCID: PMC6515354 DOI: 10.3390/molecules24081533] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/13/2019] [Accepted: 04/15/2019] [Indexed: 01/24/2023] Open
Abstract
Heterocycles are important class of structures, which occupy a major space in the domain of natural and bioactive compounds. For this reason, development of new synthetic strategies for their controllable synthesis became of special interests. The development of novel photoredox systems with wide-range application in organic synthesis is particularly interesting. Organic dyes have been widely applied as photoredox catalysts in organic synthesis. Their low costs compared to the typical photocatalysts based on transition metals make them an excellent alternative. This review describes proceedings since 2015 in the area of application of metal-free, visible-light-mediated catalysis for assembling various heterocyclic scaffolds containing five- and six-membered rings bearing nitrogen and oxygen heteroatoms.
Collapse
Affiliation(s)
- Robert Pawlowski
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Filip Stanek
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Maciej Stodulski
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| |
Collapse
|
17
|
Haun G, Paneque AN, Almond DW, Austin BE, Moura-Letts G. Synthesis of Chromenoisoxazolidines from Substituted Salicylic Nitrones via Visible-Light Photocatalysis. Org Lett 2019; 21:1388-1392. [PMID: 30779582 DOI: 10.1021/acs.orglett.9b00097] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This effort reports the first redox-neutral visible-light photocatalytic intramolecular dipolar cycloaddition for the diastereoselective synthesis of chromenoisoxazolidines. The authors have found that alkenylphenyl nitrones with a diverse substitution pattern on the aromatic ring and the alkenyl substituent undergo visible-light-promoted cycloadditions in the presence of catalytic amounts of Ru(bpy)3Cl2 in high yields and selectivities. Evidence indicates that the proposed redox-neutral pathway is the predominant photoredox mechanism for this transformation.
Collapse
Affiliation(s)
- Graham Haun
- Department of Chemistry and Biochemistry , Rowan University , 201 Mullica Hill Road , Glassboro , New Jersey 08028 , United States
| | - Alyson N Paneque
- Department of Chemistry and Biochemistry , Rowan University , 201 Mullica Hill Road , Glassboro , New Jersey 08028 , United States
| | - David W Almond
- Department of Chemistry and Biochemistry , Rowan University , 201 Mullica Hill Road , Glassboro , New Jersey 08028 , United States
| | - Brooke E Austin
- Department of Chemistry and Biochemistry , Rowan University , 201 Mullica Hill Road , Glassboro , New Jersey 08028 , United States
| | - Gustavo Moura-Letts
- Department of Chemistry and Biochemistry , Rowan University , 201 Mullica Hill Road , Glassboro , New Jersey 08028 , United States
| |
Collapse
|
18
|
Milligan JA, Phelan JP, Badir SO, Molander GA. Alkyl‐C‐C‐Bindungsbildung durch Nickel/Photoredox‐Kreuzkupplung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201809431] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- John A. Milligan
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
| | - James P. Phelan
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
| | - Shorouk O. Badir
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
| | - Gary A. Molander
- Department of ChemistryUniversity of PennsylvaniaRoy and Diana Vagelos Laboratories 231 S. 34th Street Philadelphia PA 19104-6323 USA
| |
Collapse
|
19
|
Kaur N, Wu F, Alom NE, Ariyarathna JP, Saluga SJ, Li W. Intermolecular alkene difunctionalizations for the synthesis of saturated heterocycles. Org Biomol Chem 2019; 17:1643-1654. [PMID: 30452059 DOI: 10.1039/c8ob02443j] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Saturated heterocycles are important structural motifs in a range of pharmaceuticals and agrochemicals. As a result of their importance, syntheses of these molecules have been extensively investigated. Despite the progress in this area, the most adopted strategies are still often characterized with inefficiency or relying on functionalizations with specialized precursors and pre-existing cores. This review highlights a dynamic synthetic strategy for the direct synthesis of saturated heterocycles from intermolecular alkene difunctionalizations. These coupling processes are highly modular, and therefore, offer perhaps the most convenient means to prepare diverse heterocyclic structures in compound libraries for bioactivity evoluations.
Collapse
Affiliation(s)
- Navdeep Kaur
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | | | | | | | | | | |
Collapse
|
20
|
Bonilla P, Rey YP, Holden CM, Melchiorre P. Photo-Organocatalytic Enantioselective Radical Cascade Reactions of Unactivated Olefins. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808183] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pablo Bonilla
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology; Avenida Països Catalans 16-43007 Tarragona Spain
| | - Yannick P. Rey
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology; Avenida Països Catalans 16-43007 Tarragona Spain
| | - Catherine M. Holden
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology; Avenida Països Catalans 16-43007 Tarragona Spain
| | - Paolo Melchiorre
- ICREA-Catalan Institution for Research and Advanced Studies; Passeig Lluís Companys 23-08010 Barcelona Spain
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology; Avenida Països Catalans 16-43007 Tarragona Spain
| |
Collapse
|
21
|
Bonilla P, Rey YP, Holden CM, Melchiorre P. Photo-Organocatalytic Enantioselective Radical Cascade Reactions of Unactivated Olefins. Angew Chem Int Ed Engl 2018; 57:12819-12823. [PMID: 30098097 PMCID: PMC6175195 DOI: 10.1002/anie.201808183] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/09/2018] [Indexed: 11/09/2022]
Abstract
Radical cascade processes are invaluable for their ability to rapidly construct complex chiral molecules from simple substrates. However, implementing catalytic asymmetric variants is difficult. Reported herein is a visible‐light‐mediated organocatalytic strategy that exploits the excited‐state reactivity of chiral iminium ions to trigger radical cascade reactions with high enantioselectivity. By combining two sequential radical‐based bond‐forming events, the method converts unactivated olefins and α,β‐unsaturated aldehydes into chiral adducts in a single step. The implementation of an asymmetric three‐component radical cascade further demonstrates the complexity‐generating power of this photochemical strategy.
Collapse
Affiliation(s)
- Pablo Bonilla
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Avenida Països Catalans, 16-43007, Tarragona, Spain
| | - Yannick P Rey
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Avenida Països Catalans, 16-43007, Tarragona, Spain
| | - Catherine M Holden
- ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Avenida Països Catalans, 16-43007, Tarragona, Spain
| | - Paolo Melchiorre
- ICREA-Catalan Institution for Research and Advanced Studies, Passeig Lluís Companys, 23-08010, Barcelona, Spain.,ICIQ-Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Avenida Països Catalans, 16-43007, Tarragona, Spain
| |
Collapse
|
22
|
Wang Y, Li Y, Jiang X. Sulfur-Center-Involved Photocatalyzed Reactions. Chem Asian J 2018; 13:2208-2242. [DOI: 10.1002/asia.201800532] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 04/29/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Yuhong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Yiming Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road Shanghai 200062 P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| |
Collapse
|
23
|
Sideri IK, Voutyritsa E, Kokotos CG. Photoorganocatalysis, small organic molecules and light in the service of organic synthesis: the awakening of a sleeping giant. Org Biomol Chem 2018; 16:4596-4614. [PMID: 29888357 DOI: 10.1039/c8ob00725j] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Photocatalysis, the use of light to promote organic transformations, is a field of catalysis that has received limited attention despite existing for over 100 years. With the revolution of photoredox catalysis in 2008, the rebirth or awakening of the field of photoorganocatalysis has brought new ideas and reactions to organic synthesis. This review will focus on the sudden outburst of literature regarding the use of small organic molecules as photocatalysts after 2013. In particular, it will focus on acridinium salts, benzophenones, pyrylium salts, thioxanthone derivatives, phenylglyoxylic acid, BODIPYs, flavin derivatives, and classes of organic molecules as catalysts for the photocatalytic generation of C-C and C-X bonds.
Collapse
Affiliation(s)
- Ioanna K Sideri
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Errika Voutyritsa
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| |
Collapse
|
24
|
Svejstrup TD, Zawodny W, Douglas JJ, Bidgeli D, Sheikh NS, Leonori D. Visible-light-mediated generation of nitrile oxides for the photoredox synthesis of isoxazolines and isoxazoles. Chem Commun (Camb) 2018; 52:12302-12305. [PMID: 27711298 DOI: 10.1039/c6cc06029c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible-light photoredox catalysis enables the synthesis of biologically relevant isoxazolines and isoxazoles from hydroxyimino acids. The process shows broad functional group compatibility and mechanistic and computational studies support a visible-light-mediated generation of nitrile oxides by two sequential oxidative single electron transfer processes.
Collapse
Affiliation(s)
- Thomas D Svejstrup
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Wojciech Zawodny
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - James J Douglas
- AstraZeneca, Silk Road Business Park, Macclesfield SK10 2NA, UK
| | - Damon Bidgeli
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Nadeem S Sheikh
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Daniele Leonori
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| |
Collapse
|
25
|
Zheng L, Gao F, Yang C, Gao GL, Zhao Y, Gao Y, Xia W. Visible-Light-Mediated Anti-Regioselective Nitrone 1,3-Dipolar Cycloaddition Reaction and Synthesis of Bisindolylmethanes. Org Lett 2017; 19:5086-5089. [DOI: 10.1021/acs.orglett.7b02251] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Lewei Zheng
- State
Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Fei Gao
- State
Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Chao Yang
- State
Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Guo-Lin Gao
- State
Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yating Zhao
- State
Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yuan Gao
- School
of Chemistry and Chemical Engineering, Yantai University, #30 Qingquan
Road, Laishan District, Yantai 264005, China
| | - Wujiong Xia
- State
Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| |
Collapse
|
26
|
Jana S, Verma A, Kadu R, Kumar S. Visible-light-induced oxidant and metal-free dehydrogenative cascade trifluoromethylation and oxidation of 1,6-enynes with water. Chem Sci 2017; 8:6633-6644. [PMID: 28989690 PMCID: PMC5625288 DOI: 10.1039/c7sc02556d] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/08/2017] [Indexed: 12/30/2022] Open
Abstract
Unprecedented light-induced oxidant and metal-free tandem radical cyclization–trifluoromethylation and dehydrogenative oxygenation of 1,6-enynes have been achieved using a photoredox catalyst, CF3SO2Na, and water as the oxygen source.
Generally, oxy-trifluoromethylation in olefins is achieved using oxidants and transition metal catalysts. However, labile olefins remain unexplored due to their incompatibility with harsh reaction conditions. Here, unprecedented light-induced oxidant and metal-free tandem radical cyclization–trifluoromethylation and dehydrogenative oxygenation of 1,6-enynes have been achieved using a photoredox catalyst, CF3SO2Na, and phenanthrene-9,10-dione (PQ), Langlois’ reagent (CF3SO2Na) and water as the oxygen source. This benign protocol allows for access to various CF3-containing C3-aryloyl/acylated benzofurans, benzothiophenes, and indoles. Moreover, the oxidized undesired products, which are inherently formed by the cleavage of the vinylic carbon and heteroatom bond, have been circumvented under oxidant free conditions. The mechanistic investigations by UV-visible and ESR spectroscopy, electrochemical studies, isotope labelling and density functional theory (DFT) suggest that light induced PQ produced a CF3 radical from CF3SO2Na. The generated CF3 radical adds to the alkene, followed by cyclization, to provide a vinylic radical that transfers an electron to PQ and generates a vinylic cation. Alternatively, electron transfer may occur from the CF3-added alkene moiety, forming a carbocation, which would undergo cationic cyclization to generate a vinylic carbocation. The subsequent addition of water to the vinylic cation, followed by the elimination of hydrogen gas, led to the formation of trifluoromethylated C3-aryloyl/acylated heterocycles.
Collapse
Affiliation(s)
- Sadhan Jana
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Ajay Verma
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Rahul Kadu
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Sangit Kumar
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| |
Collapse
|
27
|
Zhao G, Kaur S, Wang T. Visible-Light-Mediated Thiol–Ene Reactions through Organic Photoredox Catalysis. Org Lett 2017; 19:3291-3294. [DOI: 10.1021/acs.orglett.7b01441] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gaoyuan Zhao
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Sarbjeet Kaur
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Ting Wang
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| |
Collapse
|
28
|
Wang L, Wu F, Chen J, Nicewicz DA, Huang Y. Visible-Light-Mediated [4+2] Cycloaddition of Styrenes: Synthesis of Tetralin Derivatives. Angew Chem Int Ed Engl 2017; 56:6896-6900. [DOI: 10.1002/anie.201702940] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/09/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Leifeng Wang
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| | - Fengjin Wu
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| | - Jiean Chen
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| | - David A. Nicewicz
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
- Department of Chemistry; University of North Carolina at Chapel Hill; Chapel Hill NC 27599-3290 USA
| | - Yong Huang
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| |
Collapse
|
29
|
Wang L, Wu F, Chen J, Nicewicz DA, Huang Y. Visible-Light-Mediated [4+2] Cycloaddition of Styrenes: Synthesis of Tetralin Derivatives. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702940] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Leifeng Wang
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| | - Fengjin Wu
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| | - Jiean Chen
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| | - David A. Nicewicz
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
- Department of Chemistry; University of North Carolina at Chapel Hill; Chapel Hill NC 27599-3290 USA
| | - Yong Huang
- Key Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University; Shenzhen Graduate School; Shenzhen 518055 China
| |
Collapse
|
30
|
Qin HT, Xu X, Liu F. Aerobic Oxidation of Alkynes to 1,2-Diketones by Organic Photoredox Catalysis. ChemCatChem 2017. [DOI: 10.1002/cctc.201700061] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hai-Tao Qin
- Jiangsu Key Laboratory of Translational Research and; Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry; College of Pharmaceutical Sciences; Soochow University; 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xiao Xu
- Jiangsu Key Laboratory of Translational Research and; Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry; College of Pharmaceutical Sciences; Soochow University; 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and; Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry; College of Pharmaceutical Sciences; Soochow University; 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| |
Collapse
|
31
|
Menigaux D, Belmont P, Brachet E. Light on Unsaturated Hydrocarbons - “Gotta Heterofunctionalize Them All”. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601626] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Doriane Menigaux
- Université Paris Descartes; Faculté de Pharmacie de Paris, UMR CNRS 8638 (COMETE); 4 avenue de l'Observatoire 75006 Paris France
| | - Philippe Belmont
- Université Paris Descartes; Faculté de Pharmacie de Paris, UMR CNRS 8638 (COMETE); 4 avenue de l'Observatoire 75006 Paris France
| | - Etienne Brachet
- Université Paris Descartes; Faculté de Pharmacie de Paris, UMR CNRS 8638 (COMETE); 4 avenue de l'Observatoire 75006 Paris France
| |
Collapse
|
32
|
Abstract
The incorporation of an easily oxidized arylsulfide moiety facilitates the photocatalytic generation of alkene radical cations that undergo a variety of cycloaddition reactions with electron-rich reaction partners. The sulfide moiety can subsequently be reductively cleaved in a traceless fashion, affording products that are not otherwise directly accessible using photoredox catalysis. This approach constitutes a novel oxidative "redox auxiliary" strategy that offers a practical means to circumvent a fundamental thermodynamic limitation facing photoredox reactions.
Collapse
Affiliation(s)
- Shishi Lin
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706
| | - Shane D. Lies
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706
| | - Christopher S. Gravatt
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706
| | - Tehshik P. Yoon
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706
| |
Collapse
|
33
|
Fang J, Wang ZK, Wu SW, Shen WG, Ao GZ, Liu F. Photoredox-catalysed chloro-, bromo- and trifluoromethylthio-trifluoromethylation of unactivated alkenes with sodium triflinate. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc01903c] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A convenient and practical protocol is developed for radical vicinal difunctionalization of unactivated alkenes under transition-metal-free conditions.
Collapse
Affiliation(s)
- Jing Fang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Zhong-Kui Wang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Shu-Wei Wu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Wei-Guo Shen
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Gui-Zhen Ao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| |
Collapse
|
34
|
Qin HT, Wu SW, Liu JL, Liu F. Photoredox-catalysed redox-neutral trifluoromethylation of vinyl azides for the synthesis of α-trifluoromethylated ketones. Chem Commun (Camb) 2017; 53:1696-1699. [DOI: 10.1039/c6cc10035j] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A redox-neutral, mild, and simple protocol is developed for the synthesis of α-trifluoromethylated ketones from vinyl azides upon visible-light irradiation.
Collapse
Affiliation(s)
- Hai-Tao Qin
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Shu-Wei Wu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Jia-Li Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| |
Collapse
|
35
|
Tsudaka T, Kotani H, Ohkubo K, Nakagawa T, Tkachenko NV, Lemmetyinen H, Fukuzumi S. Photoinduced Electron Transfer in 9-Substituted 10-Methylacridinium Ions. Chemistry 2016; 23:1306-1317. [DOI: 10.1002/chem.201604527] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Takeshi Tsudaka
- Department of Material and Life Science Graduate School of Engineering; Osaka University and SENTAN, Japan Science and Technology Agency (JST), Suita; Osaka 565-0871 Japan
| | - Hiroaki Kotani
- Department of Chemistry, Graduate School of Pure and Applied Sciences; University of Tsukuba; 1-1-1 Tennoudai, Tsukuba Ibaraki 305-8571 Japan
| | - Kei Ohkubo
- Department of Material and Life Science Graduate School of Engineering; Osaka University and SENTAN, Japan Science and Technology Agency (JST), Suita; Osaka 565-0871 Japan
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 120-750 Korea
- Division of Innovative Research for Drug Design, Institute of Academic Initiatives; Osaka University, Suita; Osaka 565-0871 Japan
| | - Tatsuo Nakagawa
- Unisoku Co. Ltd, SENTAN, Japan Science and Technology Agency (JST); Hirakata Osaka 573-0131 Japan
| | - Nikolai V. Tkachenko
- Institute of Materials Chemistry; Tampere University of Technology; P.O. Box 541 33101 Tampere Finland
| | - Helge Lemmetyinen
- Institute of Materials Chemistry; Tampere University of Technology; P.O. Box 541 33101 Tampere Finland
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 120-750 Korea
- Faculty of Science and Technology; Meijo University, SENTAN, Japan Science and Technology Agency (JST), Nagoya; Aichi 468-8502 Japan
| |
Collapse
|
36
|
Abstract
The interaction between an electronically excited photocatalyst and an organic molecule can result in the genertion of a diverse array of reactive intermediates that can be manipulated in a variety of ways to result in synthetically useful bond constructions. This Review summarizes dual-catalyst strategies that have been applied to synthetic photochemistry. Mechanistically distinct modes of photocatalysis are discussed, including photoinduced electron transfer, hydrogen atom transfer, and energy transfer. We focus upon the cooperative interactions of photocatalysts with redox mediators, Lewis and Brønsted acids, organocatalysts, enzymes, and transition metal complexes.
Collapse
Affiliation(s)
- Kazimer
L. Skubi
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Travis R. Blum
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Tehshik P. Yoon
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| |
Collapse
|
37
|
Wu X, Chen Z, Bai YB, Dong VM. Diastereodivergent Construction of Bicyclic γ-Lactones via Enantioselective Ketone Hydroacylation. J Am Chem Soc 2016; 138:12013-6. [DOI: 10.1021/jacs.6b06227] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xuesong Wu
- Department
of Chemistry, University of California, Irvine, 4403 Natural
Sciences 1, Irvine, California 92697, United States
| | - Zhiwei Chen
- Department
of Chemistry, University of California, Irvine, 4403 Natural
Sciences 1, Irvine, California 92697, United States
| | - Yu-Bin Bai
- Department
of Chemistry, University of California, Irvine, 4403 Natural
Sciences 1, Irvine, California 92697, United States
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Vy M. Dong
- Department
of Chemistry, University of California, Irvine, 4403 Natural
Sciences 1, Irvine, California 92697, United States
| |
Collapse
|
38
|
Xiao T, Li L, Zhou L. Synthesis of Functionalized gem-Difluoroalkenes via a Photocatalytic Decarboxylative/Defluorinative Reaction. J Org Chem 2016; 81:7908-16. [PMID: 27467781 DOI: 10.1021/acs.joc.6b01620] [Citation(s) in RCA: 154] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A photocatalytic decarboxylative/defluorinative reaction of α-trifluoromethyl alkenes with α-keto acids and α-amino acids has been developed. The reaction occurs at room temperature under visible light irradiation, affording various γ,γ-difluoroallylic ketones and 1,1-difluorohomoallyl amines in good yields. The synthetic applications of the resulting functionalized gem-difluoroalkenes were also described.
Collapse
Affiliation(s)
- Tiebo Xiao
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University , 135 Xingang West Road, Guangzhou, 510275, China
| | - Linyong Li
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University , 135 Xingang West Road, Guangzhou, 510275, China
| | - Lei Zhou
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University , 135 Xingang West Road, Guangzhou, 510275, China
| |
Collapse
|
39
|
Abstract
![]()
In
recent years, photoredox catalysis has come to the forefront
in organic chemistry as a powerful strategy for the activation of
small molecules. In a general sense, these approaches rely on the
ability of metal complexes and organic dyes to convert visible light
into chemical energy by engaging in single-electron transfer with
organic substrates, thereby generating reactive intermediates. In
this Perspective, we highlight the unique ability of photoredox catalysis
to expedite the development of completely new reaction mechanisms,
with particular emphasis placed on multicatalytic strategies that
enable the construction of challenging carbon–carbon and carbon–heteroatom
bonds.
Collapse
Affiliation(s)
- Megan H Shaw
- Merck Center for Catalysis at Princeton University , Princeton, New Jersey 08544, United States
| | - Jack Twilton
- Merck Center for Catalysis at Princeton University , Princeton, New Jersey 08544, United States
| | - David W C MacMillan
- Merck Center for Catalysis at Princeton University , Princeton, New Jersey 08544, United States
| |
Collapse
|
40
|
Affiliation(s)
- Nathan A. Romero
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - David A. Nicewicz
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| |
Collapse
|