101
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Affiliation(s)
- Lingying Leng
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390, United States
| | - Joseph M. Ready
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390, United States
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102
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103
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Leitch JA, Rossolini T, Rogova T, Dixon DJ. α-Tertiary Dialkyl Ether Synthesis via Reductive Photocatalytic α-Functionalization of Alkyl Enol Ethers. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02584] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jamie A. Leitch
- Department of Chemistry, University of Oxford, Chemistry Research
Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Thomas Rossolini
- Department of Chemistry, University of Oxford, Chemistry Research
Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Tatiana Rogova
- Department of Chemistry, University of Oxford, Chemistry Research
Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Darren J. Dixon
- Department of Chemistry, University of Oxford, Chemistry Research
Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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104
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Rogova T, Gabriel P, Zavitsanou S, Leitch JA, Duarte F, Dixon DJ. Reverse Polarity Reductive Functionalization of Tertiary Amides via a Dual Iridium-Catalyzed Hydrosilylation and Single Electron Transfer Strategy. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03089] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tatiana Rogova
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Pablo Gabriel
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Stamatia Zavitsanou
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Jamie A. Leitch
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Fernanda Duarte
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Darren J. Dixon
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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105
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Koleoso OK, Turner M, Plasser F, Kimber MC. A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates. Beilstein J Org Chem 2020; 16:1983-1990. [PMID: 32831955 PMCID: PMC7431758 DOI: 10.3762/bjoc.16.165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/05/2020] [Indexed: 12/20/2022] Open
Abstract
An intermolecular radical addition, using photoredox catalysis, to allenamides and allencarbamates is reported. This transformation synthesizes N-acyl-N’-aryl-N,N’-allylaminals, and proceeds by a conjugated N-acyliminium intermediate that previously has principally been generated by electrophilic activation methods. The radical adds to the central carbon of the allene giving a conjugated N-acyliminium that undergoes nucleophilic addition by arylamines and alcohols.
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Affiliation(s)
- Olusesan K Koleoso
- School of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK.,Department of Pharmaceutical Technology, Moshood Abiola Polytechnic, Abeokuta, Nigeria
| | - Matthew Turner
- School of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
| | - Felix Plasser
- School of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
| | - Marc C Kimber
- School of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
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106
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Ryder ASH, Cunningham WB, Ballantyne G, Mules T, Kinsella AG, Turner‐Dore J, Alder CM, Edwards LJ, McKay BSJ, Grayson MN, Cresswell AJ. Photocatalytic α-Tertiary Amine Synthesis via C-H Alkylation of Unmasked Primary Amines. Angew Chem Int Ed Engl 2020; 59:14986-14991. [PMID: 32391968 PMCID: PMC7496683 DOI: 10.1002/anie.202005294] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/30/2020] [Indexed: 01/12/2023]
Abstract
A practical, catalytic entry to α,α,α-trisubstituted (α-tertiary) primary amines by C-H functionalisation has long been recognised as a critical gap in the synthetic toolbox. We report a simple and scalable solution to this problem that does not require any in situ protection of the amino group and proceeds with 100 % atom-economy. Our strategy, which uses an organic photocatalyst in combination with azide ion as a hydrogen atom transfer (HAT) catalyst, provides a direct synthesis of α-tertiary amines, or their corresponding γ-lactams. We anticipate that this methodology will inspire new retrosynthetic disconnections for substituted amine derivatives in organic synthesis, and particularly for challenging α-tertiary primary amines.
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Affiliation(s)
- Alison S. H. Ryder
- Centre for Sustainable Chemical TechnologiesUniversity of Bath1 South, Claverton DownBathBA2 7AYUK
| | | | - George Ballantyne
- Department of ChemistryUniversity of Bath1 South, Claverton DownBathBA2 7AYUK
| | - Tom Mules
- Department of ChemistryUniversity of Bath1 South, Claverton DownBathBA2 7AYUK
| | - Anna G. Kinsella
- Department of ChemistryUniversity of Bath1 South, Claverton DownBathBA2 7AYUK
| | - Jacob Turner‐Dore
- Department of ChemistryUniversity of Bath1 South, Claverton DownBathBA2 7AYUK
| | - Catherine M. Alder
- Medicines DesignGSK Medicines Research CentreGunnels Wood RdStevenageSG1 2NYUK
| | - Lee J. Edwards
- Medicines DesignGSK Medicines Research CentreGunnels Wood RdStevenageSG1 2NYUK
| | | | - Matthew N. Grayson
- Department of ChemistryUniversity of Bath1 South, Claverton DownBathBA2 7AYUK
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107
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Govaerts S, Angelini L, Hampton C, Malet‐Sanz L, Ruffoni A, Leonori D. Photoinduced Olefin Diamination with Alkylamines. Angew Chem Int Ed Engl 2020; 59:15021-15028. [PMID: 32432808 PMCID: PMC7497254 DOI: 10.1002/anie.202005652] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/19/2020] [Indexed: 11/07/2022]
Abstract
Vicinal diamines are ubiquitous materials in organic and medicinal chemistry. The direct coupling of olefins and amines would be an ideal approach to construct these motifs. However, alkene diamination remains a long-standing challenge in organic synthesis, especially when using two different amine components. We report a general strategy for the direct and selective assembly of vicinal 1,2-diamines using readily available olefin and amine building blocks. This mild and straightforward approach involves in situ formation and photoinduced activation of N-chloroamines to give aminium radicals that enable efficient alkene aminochlorination. Owing to the ambiphilic nature of the β-chloroamines produced, conversion into tetra-alkyl aziridinium ions was possible, thus enabling diamination by regioselective ring-opening with primary or secondary amines. This strategy streamlines the preparation of vicinal diamines from multistep sequences to a single chemical transformation.
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Affiliation(s)
- Sebastian Govaerts
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Lucrezia Angelini
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Charlotte Hampton
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Laia Malet‐Sanz
- Eli Lilly and Company LimitedErl Wood ManorWindleshamSurreyGU20 6PHUK
| | - Alessandro Ruffoni
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Daniele Leonori
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
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108
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Lu C, Qiu Z, Xuan M, Huang Y, Lou Y, Zhu Y, Shen H, Lin B. Direct
N‐
Alkylation/Fluoroalkylation of Amines Using Carboxylic Acids via Transition‐Metal‐Free Catalysis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chunlei Lu
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
- Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Zetian Qiu
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Maojie Xuan
- School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 People's Republic of China
| | - Yan Huang
- School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 People's Republic of China
| | - Yongjia Lou
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Yiling Zhu
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Hao Shen
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Bo‐Lin Lin
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
- Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
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109
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Yin Y, Zhao X, Jiang Z. Advances in the Synthesis of Imine‐Containing Azaarene Derivatives via Photoredox Catalysis. ChemCatChem 2020. [DOI: 10.1002/cctc.202000741] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yanli Yin
- College of Bioengineering Henan University of Technology Zhengzhou Henan 450001 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Xiaowei Zhao
- College of Pharmacy Henan University Kaifeng Henan 475004 P. R. China
| | - Zhiyong Jiang
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
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110
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Su YL, Liu GX, Liu JW, Tram L, Qiu H, Doyle MP. Radical-Mediated Strategies for the Functionalization of Alkenes with Diazo Compounds. J Am Chem Soc 2020; 142:13846-13855. [DOI: 10.1021/jacs.0c05183] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yong-Liang Su
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Geng-Xin Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jun-Wen Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Linh Tram
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Huang Qiu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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111
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Leng L, Fu Y, Liu P, Ready JM. Regioselective, Photocatalytic α-Functionalization of Amines. J Am Chem Soc 2020; 142:11972-11977. [PMID: 32573218 DOI: 10.1021/jacs.0c03758] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photocatalytic α-functionalization of amines provides a mild and atom-economical means to synthesize α-branched amines. Prior examples featured symmetrical or electronically biased substrates. Here we report a controllable α-functionalization of amines in which regioselectivity can be tuned with minor changes to the reaction conditions.
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Affiliation(s)
- Lingying Leng
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390-9038, United States
| | - Yue Fu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Joseph M Ready
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390-9038, United States
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112
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Bao H, Zhou B, Luo SP, Xu Z, Jin H, Liu Y. P/N Heteroleptic Cu(I)-Photosensitizer-Catalyzed Deoxygenative Radical Alkylation of Aromatic Alkynes with Alkyl Aldehydes Using Dipropylamine as a Traceless Linker Agent. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02454] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hanyang Bao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Bingwei Zhou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Shu-Ping Luo
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Hongwei Jin
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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113
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Ryder ASH, Cunningham WB, Ballantyne G, Mules T, Kinsella AG, Turner‐Dore J, Alder CM, Edwards LJ, McKay BSJ, Grayson MN, Cresswell AJ. Photocatalytic α‐Tertiary Amine Synthesis via C−H Alkylation of Unmasked Primary Amines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005294] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alison S. H. Ryder
- Centre for Sustainable Chemical Technologies University of Bath 1 South, Claverton Down Bath BA2 7AY UK
| | | | - George Ballantyne
- Department of Chemistry University of Bath 1 South, Claverton Down Bath BA2 7AY UK
| | - Tom Mules
- Department of Chemistry University of Bath 1 South, Claverton Down Bath BA2 7AY UK
| | - Anna G. Kinsella
- Department of Chemistry University of Bath 1 South, Claverton Down Bath BA2 7AY UK
| | - Jacob Turner‐Dore
- Department of Chemistry University of Bath 1 South, Claverton Down Bath BA2 7AY UK
| | - Catherine M. Alder
- Medicines Design GSK Medicines Research Centre Gunnels Wood Rd Stevenage SG1 2NY UK
| | - Lee J. Edwards
- Medicines Design GSK Medicines Research Centre Gunnels Wood Rd Stevenage SG1 2NY UK
| | - Blandine S. J. McKay
- Medicines Design GSK Medicines Research Centre Gunnels Wood Rd Stevenage SG1 2NY UK
| | - Matthew N. Grayson
- Department of Chemistry University of Bath 1 South, Claverton Down Bath BA2 7AY UK
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114
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Govaerts S, Angelini L, Hampton C, Malet‐Sanz L, Ruffoni A, Leonori D. Photoinduced Olefin Diamination with Alkylamines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005652] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sebastian Govaerts
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - Lucrezia Angelini
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - Charlotte Hampton
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - Laia Malet‐Sanz
- Eli Lilly and Company Limited Erl Wood Manor Windlesham Surrey GU20 6PH UK
| | - Alessandro Ruffoni
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - Daniele Leonori
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
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115
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Amos SGE, Garreau M, Buzzetti L, Waser J. Photocatalysis with organic dyes: facile access to reactive intermediates for synthesis. Beilstein J Org Chem 2020; 16:1163-1187. [PMID: 32550931 PMCID: PMC7277890 DOI: 10.3762/bjoc.16.103] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 05/11/2020] [Indexed: 12/11/2022] Open
Abstract
Organic dyes have emerged as a reliable class of photoredox catalysts. Their great structural variety combined with the easy fine-tuning of their electronic properties has unlocked new possibilities for the generation of reactive intermediates. In this review, we provide an overview of the available approaches to access reactive intermediates that employ organophotocatalysis. Our contribution is not a comprehensive description of the work in the area but rather focuses on key concepts, accompanied by a few selected illustrative examples. The review is organized along the type of reactive intermediates formed in the reaction, including C(sp3) and C(sp 2 ) carbon-, nitrogen-, oxygen-, and sulfur-centered radicals, open-shell charged species, and sensitized organic compounds.
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Affiliation(s)
- Stephanie G E Amos
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne, Switzerland
| | - Marion Garreau
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne, Switzerland
| | - Luca Buzzetti
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne, Switzerland
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116
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Arene dearomatization through a catalytic N-centered radical cascade reaction. Nat Commun 2020; 11:2528. [PMID: 32433521 PMCID: PMC7239915 DOI: 10.1038/s41467-020-16369-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/29/2020] [Indexed: 11/09/2022] Open
Abstract
Arene dearomatization reactions are an important class of synthetic technologies for the rapid assembly of unique chemical architectures. Herein, we report a catalytic protocol to initiate a carboamination/dearomatization cascade that proceeds through transient sulfonamidyl radical intermediates formed from native sulfonamide N-H bonds leading to 1,4-cyclohexadiene-fused sultams. Importantly, this work demonstrates a facile approach to employ two-dimensional aromatic compounds as modular building blocks to generate richly substituted, three-dimensional compounds. These reactions occur at room temperature under visible light irradiation and are catalyzed by the combination of an iridium(III) photocatalyst and a dialkyl phosphate base. Reaction optimization, substrate scope, mechanistic features, and synthetic applications of this transformation are presented.
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117
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Quan Y, Song Y, Shi W, Xu Z, Chen JS, Jiang X, Wang C, Lin W. Metal–Organic Framework with Dual Active Sites in Engineered Mesopores for Bioinspired Synergistic Catalysis. J Am Chem Soc 2020; 142:8602-8607. [DOI: 10.1021/jacs.0c02966] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yangjian Quan
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Yang Song
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Wenjie Shi
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Ziwan Xu
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Justin S. Chen
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Xiaomin Jiang
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Cheng Wang
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Wenbin Lin
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
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118
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Merkens K, Aguilar Troyano FJ, Djossou J, Gómez‐Suárez A. Synthesis of Unnatural α‐Amino Acid Derivatives via Light‐Mediated Radical Decarboxylative Processes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000300] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kay Merkens
- Organic ChemistryBergische Universität Wuppertal Gaußstr. 20 42119 Wuppertal Germany
| | | | - Jonas Djossou
- Organic ChemistryBergische Universität Wuppertal Gaußstr. 20 42119 Wuppertal Germany
| | - Adrián Gómez‐Suárez
- Organic ChemistryBergische Universität Wuppertal Gaußstr. 20 42119 Wuppertal Germany
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119
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A general carbonyl alkylative amination for tertiary amine synthesis. Nature 2020; 581:415-420. [PMID: 32268340 PMCID: PMC7116815 DOI: 10.1038/s41586-020-2213-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 03/27/2020] [Indexed: 11/17/2022]
Abstract
The ubiquity of tertiary alkylamines in pharmaceutical and agrochemical agents, natural products and smallmolecule biological probes1,2 continues to stimulate enormous efforts towards their streamlined synthesis3–9. Arguably, the most robust method for tertiary alkylamine synthesis is carbonyl reductive amination3: comprising two elementary steps, condensation of a secondary alkylamine with an aliphatic aldehyde forms an all alkyl-iminium ion, which is reduced by a hydride reagent. Chemists have sought to develop direct strategies for a ‘higher order’ variant of this reaction via the union of an alkyl fragment with an in-situ generated all alkyl-iminium ion10–14. However, despite more than 70 years of research, the successful realization of a ‘carbonyl alkylative amination’ has remained elusive. Herein, we report that a practical and general solution can be accomplished by the addition of alkyl-radicals to all alkyl-iminium ions. The process is facilitated by visible-light and a silane reducing agent, which, together with the other reaction components, trigger a distinct radical initiation step to establish a chain process. An attractive feature of this operationally straightforward, metal-free and modular transformation is the unbiased nature of tertiary amines that arise from the traceless union of aldehydes and secondary amines with alkyl-halides. As such, the structural and functional diversity within these classes of abundant feedstocks provides a versatile and flexible strategy for the streamlined synthesis of complex tertiary amines.
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120
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Trowbridge A, Walton SM, Gaunt MJ. New Strategies for the Transition-Metal Catalyzed Synthesis of Aliphatic Amines. Chem Rev 2020; 120:2613-2692. [DOI: 10.1021/acs.chemrev.9b00462] [Citation(s) in RCA: 310] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Aaron Trowbridge
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Scarlett M. Walton
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- Oncology
- IMED Biotech Unit, AstraZeneca, Darwin Building, Unit 310, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, United Kingdom
| | - Matthew J. Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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121
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Wang ZS, Chen YB, Zhang HW, Sun Z, Zhu C, Ye LW. Ynamide Smiles Rearrangement Triggered by Visible-Light-Mediated Regioselective Ketyl-Ynamide Coupling: Rapid Access to Functionalized Indoles and Isoquinolines. J Am Chem Soc 2020; 142:3636-3644. [PMID: 32003986 DOI: 10.1021/jacs.9b13975] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the past decades, significant advances have been made on radical Smiles rearrangement. However, the eventually formed radical intermediates in these reactions are limited to the amidyl radical, except for the few examples initiated by a N-centered radical. Here, a novel and practical radical Smiles rearrangement triggered by photoredox-catalyzed regioselective ketyl-ynamide coupling is reported, which represents the first radical Smiles rearrangement of ynamides. This method enables facile access to a variety of valuable 2-benzhydrylindoles with broad substrate scope in generally good yields under mild reaction conditions. In addition, this chemistry can also be extended to the divergent synthesis of versatile 3-benzhydrylisoquinolines through a similar ketyl-ynamide coupling and radical Smiles rearrangement, followed by dehydrogenative oxidation. Moreover, such an ynamide Smiles rearrangement initiated by intermolecular photoredox catalysis via addition of external radical sources is also achieved. By control experiments, the reaction was shown to proceed via key ketyl radical and α-imino carbon radical intermediates.
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Affiliation(s)
- Ze-Shu Wang
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Yang-Bo Chen
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Hao-Wen Zhang
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Zhou Sun
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Chunyin Zhu
- School of Chemistry and Chemical Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Long-Wu Ye
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
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122
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Dong CL, Ding X, Huang LQ, He YH, Guan Z. Merging Visible Light Photocatalysis and l-/d-Proline Catalysis: Direct Asymmetric Oxidative Dearomatization of 2-Arylindoles To Access C2-Quaternary Indolin-3-ones. Org Lett 2020; 22:1076-1080. [PMID: 31975600 DOI: 10.1021/acs.orglett.9b04613] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A mild and effective method for asymmetric synthesis of C2-quaternary indolin-3-ones directly from 2-arylindoles by combining visible light photocatalysis and organocatalysis is described. In this reaction, 2-substituted indoles undergo photocatalyzed oxidative dearomatization, followed by an organocatalyzed asymmetric Mannich reaction with ketones or aldehydes. Products with opposite configurations are easily obtained in satisfactory yields with excellent enantio- and diastereoselectivity by employing readily available l- and d-proline as chiral organocatalysts.
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Affiliation(s)
- Chun-Lin Dong
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Xuan Ding
- Yunnan Branch, Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences & Peking Union Medical College , Yunnan 666100 , China
| | - Lan-Qian Huang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
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123
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The Demulsification Properties of Cationic Hyperbranched Polyamidoamines for Polymer Flooding Emulsions and Microemulsions. Processes (Basel) 2020. [DOI: 10.3390/pr8020176] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Polymer flooding emulsions and microemulsions caused by tertiary oil recovery technologies are harmful to the environment due to their excellent stability. Two cationic hyperbranched polyamidoamines (H-PAMAM), named as H-PAMAM-HA and H-PAMAM-ETA, were obtained by changing the terminal denotation agents to H-PAMAM, which was characterized by 1H NMR, FT-IR, and amine possession, thereby confirmed the modification. Samples (300 mg/L) were added to the polymer flooding emulsion (1500 mg/L oil concentration) at 30 °C for 30 min and the H-PAMAM-HA and H-PAMAM-ETA were shown to perform at 88% and 91% deoil efficiency. Additionally, the increased settling time and the raised temperature enhanced performance. For example, an oil removal ratio of 97.7% was observed after dealing with the emulsion for 30 min at 60 °C, while 98.5% deoil efficiency was obtained after 90 min at 45 °C for the 300 mg/L H-PAMAM-ETA. To determine the differences when dealing with the emulsion, the interfacial tension, ζ potential, and turbidity measurements were fully estimated. Moreover, diametrically different demulsification mechanisms were found when the samples were utilized to treat the microemulsion. The modified demulsifiers showed excellent demulsification efficiency via their obvious electroneutralization and bridge functions, while the H-PAMAM appeared to enhance the stability of the microemulsion.
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124
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Reich D, Trowbridge A, Gaunt MJ. Rapid Syntheses of (−)‐FR901483 and (+)‐TAN1251C Enabled by Complexity‐Generating Photocatalytic Olefin Hydroaminoalkylation. Angew Chem Int Ed Engl 2020; 59:2256-2261. [DOI: 10.1002/anie.201912010] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/02/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Dominik Reich
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Aaron Trowbridge
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Matthew J. Gaunt
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
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125
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Leitch JA, Rogova T, Duarte F, Dixon DJ. Dearomative Photocatalytic Construction of Bridged 1,3‐Diazepanes. Angew Chem Int Ed Engl 2020; 59:4121-4130. [DOI: 10.1002/anie.201914390] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/04/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Jamie A. Leitch
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Tatiana Rogova
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Fernanda Duarte
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Darren J. Dixon
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
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126
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Leitch JA, Rogova T, Duarte F, Dixon DJ. Dearomative Photocatalytic Construction of Bridged 1,3‐Diazepanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jamie A. Leitch
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Tatiana Rogova
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Fernanda Duarte
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
| | - Darren J. Dixon
- Department of Chemistry Chemical Research Laboratory University of Oxford 12 Mansfield Road Oxford UK
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127
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Leitch JA, Rossolini T, Rogova T, Maitland JAP, Dixon DJ. α-Amino Radicals via Photocatalytic Single-Electron Reduction of Imine Derivatives. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05011] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jamie A. Leitch
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Thomas Rossolini
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Tatiana Rogova
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - J. Andrew P. Maitland
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Darren J. Dixon
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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128
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Kwon Y, Choi S, Jang HS, Kim SG. Rapid Access to Hindered α-Amino Acid Derivatives and Benzodiazepin-3-ones from Aza-Oxyallyl Cations. Org Lett 2020; 22:1420-1425. [DOI: 10.1021/acs.orglett.0c00023] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- YongIl Kwon
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Sunyoung Choi
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Hyun Sun Jang
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Sung-Gon Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42, Gwanggyosan-ro Yeongtong-gu, Suwon 16227, Republic of Korea
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129
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Nicastri MC, Lehnherr D, Lam YH, DiRocco DA, Rovis T. Synthesis of Sterically Hindered Primary Amines by Concurrent Tandem Photoredox Catalysis. J Am Chem Soc 2020; 142:987-998. [DOI: 10.1021/jacs.9b10871] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Michael C. Nicastri
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Dan Lehnherr
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Yu-hong Lam
- Computational and Structural Chemistry, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Daniel A. DiRocco
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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130
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Gu JY, Zhang W, Jackson SR, He YH, Guan Z. Photoinduced umpolung addition of carbonyl compounds with α,β-unsaturated esters enables the polysubstituted γ-lactone formation. Chem Commun (Camb) 2020; 56:13441-13444. [DOI: 10.1039/d0cc05306f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Photoinduced reductive coupling of carbonyl compounds and α,β-unsaturated esters via ketyl radical intermediates for the synthesis of γ-lactones is described.
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Affiliation(s)
- Jia-Yi Gu
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Wei Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Seth R. Jackson
- Department of Chemistry
- College of Saint Benedict and Saint John's University
- Collegeville
- USA
| | - Yan-Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
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131
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Niu F, Xie S, Yan Z, Kusema BT, Ordomsky VV, Khodakov AY. Alcohol amination over titania-supported ruthenium nanoparticles. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00709a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Smaller ruthenium nanoparticles over titania exhibit higher selectivity to primary amines because of suppressing imine hydrogenation.
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Affiliation(s)
- Feng Niu
- Univ. Lille
- CNRS
- Centrale Lille
- ENSCL
- Univ. Artois
| | - Shaohua Xie
- Univ. Lille
- CNRS
- Centrale Lille
- ENSCL
- Univ. Artois
| | - Zhen Yan
- E2P2L
- UMI 3464 CNRS-Solvay
- 201108 Shanghai
- China
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132
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Puttock EV, Sil A, Yufit DS, Williams JAG. Mono and dinuclear iridium(iii) complexes featuring bis-tridentate coordination and Schiff-base bridging ligands: the beneficial effect of a second metal ion on luminescence. Dalton Trans 2020; 49:10463-10476. [DOI: 10.1039/d0dt01964j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ditopic bis-N^N^O-coordinating ligands, prepared by Schiff base chemistry, lead to dinuclear iridium complexes that emit much more brightly than their mononuclear counterparts.
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Affiliation(s)
| | - Amit Sil
- Department of Chemistry
- Durham University
- Durham
- UK
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133
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Li YL, Li WD, Gu ZY, Chen J, Xia JB. Photoredox Ni-Catalyzed Branch-Selective Reductive Coupling of Aldehydes with 1,3-Dienes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b05137] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yan-Lin Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), University of Chinese Academy
of Sciences, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wen-Duo Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), University of Chinese Academy
of Sciences, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zheng-Yang Gu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), University of Chinese Academy
of Sciences, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jie Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), University of Chinese Academy
of Sciences, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Ji-Bao Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), University of Chinese Academy
of Sciences, Chinese Academy of Sciences, Lanzhou 730000, China
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134
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Reich D, Trowbridge A, Gaunt MJ. Rapid Syntheses of (−)‐FR901483 and (+)‐TAN1251C Enabled by Complexity‐Generating Photocatalytic Olefin Hydroaminoalkylation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dominik Reich
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Aaron Trowbridge
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Matthew J. Gaunt
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
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135
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Catalytic C(sp 3)-H bond activation in tertiary alkylamines. Nat Chem 2019; 12:76-81. [PMID: 31863014 DOI: 10.1038/s41557-019-0393-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 11/14/2019] [Indexed: 12/21/2022]
Abstract
The development of robust catalytic methods to assemble tertiary alkylamines provides a continual challenge to chemical synthesis. In this regard, transformation of a traditionally unreactive C-H bond, proximal to the nitrogen atom, into a versatile chemical entity would be a powerful strategy for introducing functional complexity to tertiary alkylamines. A practical and selective metal-catalysed C(sp3)-H activation facilitated by the tertiary alkylamine functionality, however, remains an unsolved problem. Here, we report a Pd(II)-catalysed protocol that appends arene feedstocks to tertiary alkylamines via C(sp3)-H functionalization. A simple ligand for Pd(II) orchestrates the C-H activation step in favour of deleterious pathways. The reaction can use both simple and complex starting materials to produce a range of multifaceted γ-aryl tertiary alkylamines and can be rendered enantioselective. The enabling features of this transformation should be attractive to practitioners of synthetic and medicinal chemistry as well as in other areas that use biologically active alkylamines.
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136
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Voutyritsa E, Kokotos CG. Green Metal‐Free Photochemical Hydroacylation of Unactivated Olefins. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912214] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Errika Voutyritsa
- Laboratory of Organic Chemistry Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Christoforos G. Kokotos
- Laboratory of Organic Chemistry Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
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137
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Voutyritsa E, Kokotos CG. Green Metal‐Free Photochemical Hydroacylation of Unactivated Olefins. Angew Chem Int Ed Engl 2019; 59:1735-1741. [DOI: 10.1002/anie.201912214] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/30/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Errika Voutyritsa
- Laboratory of Organic Chemistry Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Christoforos G. Kokotos
- Laboratory of Organic Chemistry Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
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138
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Huo J, He G, Chen W, Hu X, Deng Q, Chen D. A minireview of hydroamination catalysis: alkene and alkyne substrate selective, metal complex design. BMC Chem 2019; 13:89. [PMID: 31384836 PMCID: PMC6661821 DOI: 10.1186/s13065-019-0606-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/29/2019] [Indexed: 01/01/2023] Open
Abstract
Organic compounds that contain nitrogen are very important intermediates in pharmaceutical and chemical industry. Hydroamination is the reaction that can form C-N bond with high atom economy. The research progress in metals catalyzed hydroamination of alkenes and alkynes from the perspective of reaction mechanism is categorized and summarized.
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Affiliation(s)
- Jingpei Huo
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Guozhang He
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Weilan Chen
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Xiaohong Hu
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Qianjun Deng
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Dongchu Chen
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
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139
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Jiang H, Seidler G, Studer A. Carboamination of Unactivated Alkenes through Three-Component Radical Conjugate Addition. Angew Chem Int Ed Engl 2019; 58:16528-16532. [PMID: 31529676 PMCID: PMC6900080 DOI: 10.1002/anie.201910926] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Indexed: 01/24/2023]
Abstract
Two-component Giese type radical additions are highly practical and established reactions. Herein, three-component radical conjugate additions of unactivated alkenes to Michael acceptors are reported. Amidyl radicals, oxidatively generated from α-amido oxy acids using redox catalysis, act as the third reaction component which add to the unactivated alkenes. The adduct radicals engage in Giese type additions to Michael acceptors to provide, after reduction, the three-component products in an overall alkene carboamination reaction. Transformations which can be conducted under practical mild conditions feature high functional group tolerance and broad substrate scope.
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Affiliation(s)
- Heng Jiang
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraß 4048149MünsterGermany
| | - Gesa Seidler
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraß 4048149MünsterGermany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraß 4048149MünsterGermany
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140
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Mao ZY, Liu YW, Ma RJ, Ye JL, Si CM, Wei BG, Lin GQ. Divergent synthesis of N-heterocyclic 1,6-enynes through a zinc-catalyzed decarboxylative A 3 reaction. Chem Commun (Camb) 2019; 55:14170-14173. [PMID: 31701971 DOI: 10.1039/c9cc06985b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A zinc-catalyzed decarboxylative A3 reaction of cyclic amino acids, α,β-unsaturated aldehydes and terminal alkynes has been developed. A series of functionalized N-heterocyclic 1,6-enynes have been successfully obtained with excellent regioselectivities through this novel approach. In addition, the utility of this straightforward process is demonstrated by the preparation of a polycyclic nitrogen-containing heterocyclic compound.
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Affiliation(s)
- Zhuo-Ya Mao
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Yi-Wen Liu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Rui-Jun Ma
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Jian-Liang Ye
- College of Chemistry and Chemical Engineering and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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141
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Jiang H, Seidler G, Studer A. Carboamination of Unactivated Alkenes through Three‐Component Radical Conjugate Addition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910926] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Heng Jiang
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Corrensstraß 40 48149 Münster Germany
| | - Gesa Seidler
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Corrensstraß 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Corrensstraß 40 48149 Münster Germany
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142
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Muratov K, Afanasyev OI, Kuchuk E, Runikhina S, Chusov D. One-Pot Synthesis of Symmetrical Tertiary and Secondary Amines from Carbonyl Compounds, Ammonium Carbonate and Carbon Monoxide as a Reductant. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901175] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Karim Muratov
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilova St. 28 119991 Moscow Russian Federation
| | - Oleg I. Afanasyev
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilova St. 28 119991 Moscow Russian Federation
| | - Ekaterina Kuchuk
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilova St. 28 119991 Moscow Russian Federation
| | - Sofiya Runikhina
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilova St. 28 119991 Moscow Russian Federation
| | - Denis Chusov
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilova St. 28 119991 Moscow Russian Federation
- G.V. Plekhanov Russian University of Economics; 36 Stremyanny Per. 117997 Moscow Russia
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143
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Rossolini T, Ferko B, Dixon DJ. Photocatalytic Reductive Formation of α-Tertiary Ethers from Ketals. Org Lett 2019; 21:6668-6673. [PMID: 31397159 DOI: 10.1021/acs.orglett.9b02273] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A general photocatalytic reductive strategy for the construction of unsymmetrical α-tertiary dialkyl ethers is reported. By merging Lewis acid-mediated ketal activation and visible-light photocatalytic reduction, in situ-generated α-alkoxy radicals were found to engage in addition reactions with a variety of olefinic partners. Good reaction efficiency is demonstrated with a range of ketals of aromatic and aliphatic ketones. Extension to acetal substrates is also described, demonstrating the overall synthetic utility of this methodology for complex ether synthesis.
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Affiliation(s)
- Thomas Rossolini
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Branislav Ferko
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K.,Department of Organic Chemistry, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia
| | - Darren J Dixon
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
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144
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Kaiser D, Tona V, Gonçalves CR, Shaaban S, Oppedisano A, Maulide N. A General Acid-Mediated Hydroaminomethylation of Unactivated Alkenes and Alkynes. Angew Chem Int Ed Engl 2019; 58:14639-14643. [PMID: 31482639 PMCID: PMC6790944 DOI: 10.1002/anie.201906910] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/27/2019] [Indexed: 01/31/2023]
Abstract
In comparison to the extensively studied metal-catalyzed hydroamination reaction, hydroaminomethylation has received significantly less attention despite its considerable potential to streamline amine synthesis. State-of-the-art protocols for hydroaminomethylation of alkenes rely largely on transition-metal catalysis, enabling this transformation only under highly designed and controlled conditions. Here we report a broadly applicable, acid-mediated approach to the hydroaminomethylation of unactivated alkenes and alkynes. This methodology employs cheap, readily available, and bench-stable reactants and affords the desired amines with excellent functional group tolerance and impeccable regioselectivity. The broad scope of this transformation, as well as mechanistic investigations and in situ domino functionalization reactions are reported.
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Affiliation(s)
- Daniel Kaiser
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090, Vienna, Austria
| | - Veronica Tona
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090, Vienna, Austria
| | - Carlos R Gonçalves
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090, Vienna, Austria
| | - Saad Shaaban
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090, Vienna, Austria
| | - Alberto Oppedisano
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090, Vienna, Austria
| | - Nuno Maulide
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090, Vienna, Austria
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145
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Kaiser D, Tona V, Gonçalves CR, Shaaban S, Oppedisano A, Maulide N. Eine allgemeine Methode zur Hydroaminomethylierung von Alkenen und Alkinen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906910] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Daniel Kaiser
- Universität Wien Institut für Organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Veronica Tona
- Universität Wien Institut für Organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Carlos R. Gonçalves
- Universität Wien Institut für Organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Saad Shaaban
- Universität Wien Institut für Organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Alberto Oppedisano
- Universität Wien Institut für Organische Chemie Währinger Straße 38 1090 Wien Österreich
| | - Nuno Maulide
- Universität Wien Institut für Organische Chemie Währinger Straße 38 1090 Wien Österreich
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146
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Abstract
A catalytic system has been developed for the direct alkylation of α-C-H bonds of aniline derivatives with strained C-C σ-bonds. This method operates through a photoredox mechanism in which oxidative formation of aminoalkyl radical intermediates enables addition to a bicyclobutane derivative, giving rise to α-cyclobutyl N-alkylaniline products. This mild system proceeds through a redox- and proton-neutral mechanism and is operational for a range of substituted arylamine derivatives.
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Affiliation(s)
- Cameron J Pratt
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
| | - R Adam Aycock
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
| | - Max D King
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
| | - Nathan T Jui
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
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147
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Maity S, Potter TJ, Ellman JA. α-Branched amines by catalytic 1,1-addition of C-H bonds and aminating agents to terminal alkenes. Nat Catal 2019; 2:756-762. [PMID: 32879907 PMCID: PMC7462361 DOI: 10.1038/s41929-019-0330-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/25/2019] [Indexed: 12/31/2022]
Abstract
α-Branched amines are present in hundreds of pharmaceutical agents and clinical candidates and are important targets for synthesis. Here we show the convergent synthesis of α-branched amines from three readily accessible starting materials: aromatic C-H bond substrates, terminal alkenes, and aminating agents. This reaction proceeds by an intermolecular formation of C-C and C-N bonds at the sp 3 carbon branch site through an uncommon 1,1-alkene addition pathway. The reaction is carried out under mild conditions and has high functional group compatibility. Ethylene and propylene feedstock chemicals are effective alkene inputs with ethylene in particular providing for the one step synthesis of α-methyl branched amines, a motif prevalent in drug structures. The reaction is scalable, and 1% loading of an air stable dimeric rhodium precatalyst is effective for several different types of products. The use of chiral catalysts also enables the asymmetric synthesis of α-branched amines.
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Affiliation(s)
- Soham Maity
- Department of Chemistry, Yale University, New Haven, CT, USA
| | - Tyler J Potter
- Department of Chemistry, Yale University, New Haven, CT, USA
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148
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Duhamel T, Martínez MD, Sideri IK, Muñiz K. 1,3-Diamine Formation from an Interrupted Hofmann–Löffler Reaction: Iodine Catalyst Turnover through Ritter-Type Amination. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01566] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas Duhamel
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
- Universidad de Oviedo, Julian Clavería, s/n, 33006 Oviedo, Spain
| | - Mario D. Martínez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
| | - Ioanna K. Sideri
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
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149
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Liang D, Huo B, Dong Y, Wang Y, Dong Y, Wang B, Ma Y. Copper-Catalyzed Alkylarylation of Unactivated Alkenes: Synthesis of 3-Alkyl Indolines from N-Allyl Anilines and Alkanes. Chem Asian J 2019; 14:1932-1936. [PMID: 31046195 DOI: 10.1002/asia.201900176] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 03/26/2019] [Indexed: 01/14/2023]
Abstract
A rare example of C(sp3 )-H functionalization of simple alkanes with unactivated alkenes is presented. In the presence of a copper salt and di-tert-butyl peroxide (DTBP), N-allyl anilines underwent exo-selective alkylation/cyclization cascade with unactivated alkenic bonds as radical acceptors and simple alkanes as radical precursors, providing a direct access to 3-alkyl indolines. The present protocol features simple operation, broad substrate scope and great exo selectivity.
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Affiliation(s)
- Deqiang Liang
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Bojie Huo
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Yongrui Dong
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Yan Wang
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Ying Dong
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong Province, 250014, China
| | - Baoling Wang
- Yunnan Engineering Technology Research Center for Plastic Films, Kunming, Yunnan Province, 650214, China
| | - Yinhai Ma
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
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150
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Yi J, Badir SO, Alam R, Molander GA. Photoredox-Catalyzed Multicomponent Petasis Reaction with Alkyltrifluoroborates. Org Lett 2019; 21:4853-4858. [PMID: 31145628 DOI: 10.1021/acs.orglett.9b01747] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A redox-neutral alkyl Petasis reaction has been developed that proceeds via photoredox catalysis. A diverse set of primary, secondary, and tertiary alkyltrifluoroborates participate effectively in this reaction through a single-electron transfer mechanism, in contrast to the traditional two-electron Petasis reaction, which accommodates only unsaturated boronic acids. This protocol is ideal to diversify benzyl-type and glyoxalate-derived aldehydes, anilines, and alkyltrifluoroborates toward the rapid assembly of libraries of higher molecular complexity important in pharmaceutical and agrochemical settings.
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Affiliation(s)
- Jun Yi
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States.,Jiangsu Laboratory of Advanced Functional Materials, School of Chemistry and Materials Engineering , Changshu Institute of Technology , Changshu 215500 , China
| | - Shorouk O Badir
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Rauful Alam
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
| | - Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , United States
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