1
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Zeng L, Xu CH, Zou XY, Sun Q, Hu M, Ouyang XH, He DL, Li JH. Iodoarene-directed photoredox β-C(sp 3)-H arylation of 1-( o-iodoaryl)alkan-1-ones with cyanoarenes via halogen atom transfer and hydrogen atom transfer. Chem Sci 2024; 15:6522-6529. [PMID: 38699280 PMCID: PMC11062093 DOI: 10.1039/d3sc06637a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 03/25/2024] [Indexed: 05/05/2024] Open
Abstract
Site selective functionalization of inert remote C(sp3)-H bonds to increase molecular complexity offers vital potential for chemical synthesis and new drug development, thus it has been attracting ongoing research interest. In particular, typical β-C(sp3)-H arylation methods using chelation-assisted metal catalysis or metal-catalyzed oxidative/photochemical in situ generated allyl C(sp3)-H bond processes have been well developed. However, radical-mediated direct β-C(sp3)-H arylation of carbonyls remains elusive. Herein, we describe an iodoarene-directed photoredox β-C(sp3)-H arylation of 1-(o-iodoaryl)alkan-1-ones with cyanoarenes via halogen atom transfer (XAT) and hydrogen atom transfer (HAT). The method involves diethylaminoethyl radical-mediated generation of an aryl radical intermediate via XAT, then directed 1,5-HAT to form the remote alkyl radical intermediate and radical-radical coupling with cyanoarenes, and is applicable to a broad scope of unactivated remote C(sp3)-H bonds like β-C(sp3)-H bonds of o-iodoaryl-substituted alkanones and α-C(sp3)-H bonds of o-iodoarylamides. Experimental findings are supported by computational studies (DFT calculations), revealing that this method operates via a radical-relay stepwise mechanism involving multiple SET, XAT, 1,5-HAT and radical-radical coupling processes.
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Affiliation(s)
- Liang Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha 410082 China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University Nanchang 330063 China
| | - Chong-Hui Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha 410082 China
| | - Xiu-Yuan Zou
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University Nanchang 330063 China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University Nanchang 330063 China
| | - Ming Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha 410082 China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University Nanchang 330063 China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University Nanchang 330063 China
| | - De-Liang He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha 410082 China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University Changsha 410082 China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology Qingdao 266042 China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Lanzhou 730000 China
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 475004 China
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2
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Xu CH, Zeng L, Lv GF, Qin JH, Xu XH, Li JH. Palladium-Catalyzed β-C(sp 3)-H Arylation of Silyl Prop-1-en-1-ol Ethers with Aryl Halides: Entry to α,β-Unsaturated Ketones. Org Lett 2023; 25:7645-7649. [PMID: 37843412 DOI: 10.1021/acs.orglett.3c02961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
A palladium(0)-catalyzed β-C(sp3)-H arylation of silyl prop-1-en-1-ol ethers with aryl halides for the synthesis of α,β-unsaturated ketones is presented. In contrast to the reported β-C(sp3)-H arylation of ketones, the chemoselectivity of this current method relies on the Pd(0) catalytic systems and reaction temperatures: While using the Pd(dba)2/DavePhos/KF system at 80 °C resulted in β-C(sp3)-H monoarylation to produce β-monoarylated α,β-unsaturated ketones, harnessing the Pd(OAc)2/t-Bu XPhos/K2HPO4 system at 110 °C induced β-C(sp3)-H diarylation to afford β,β-diarylated α,β-unsaturated ketones. The method provides a versatile route that uses readily available ketone-derivatized α-nonsubstituted silyl prop-1-en-1-ol ethers as the alkene sources and is characterized by a good functional group compatibility, a broad substrate scope, and an excellent selectivity.
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Affiliation(s)
- Chong-Hui Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Liang Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Gui-Fen Lv
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Hao Qin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xin-Hua Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, China
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3
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Zhou B, Deng S, Xu Y, Qi X, Dong G. Iridium-Catalyzed Intramolecular β-C-H Alkenylation of Ketones with Alkynes via a Hydride-Transfer Approach. J Am Chem Soc 2022; 144:23230-23238. [PMID: 36508583 DOI: 10.1021/jacs.2c11505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Direct functionalization of carbonyl β C-H bonds without using directing groups has not been a trivial task, and it is even more challenging to realize the corresponding atom-economical transformations with common alkenes or alkynes as the coupling partner. Here, we describe the development of an iridium-catalyzed intramolecular direct β-alkenylation of ketones with regular alkynes. The reaction is redox neutral, avoids strong acids or bases, and tolerates various functional groups. The combined experimental and computational mechanistic studies reveal a hydride-transfer pathway, involving ketone α,β-desaturation, iridium-hydride-mediated alkyne insertion, conjugate addition, and α-protonation.
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Affiliation(s)
- Bo Zhou
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Shuang Deng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Yin Xu
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Xiaotian Qi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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4
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Douvris C, Matatov D, Bussan D, Lampropoulos C, Wink DJ. Synthesis, Characterization, and X-ray Crystallography, of the First Cyclohexadienyl Trifluoromethyl Metal Complex (η5-C6H7)Fe(CO)2CF3. Molecules 2022; 27:molecules27217595. [PMID: 36364424 PMCID: PMC9654653 DOI: 10.3390/molecules27217595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/27/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
Fluorochemistry is a field of tremendous developments and advances in several areas of science including materials, pharmaceuticals and agriculture. This makes the design and synthesis of fluorine-containing substances highly desirable research targets. The sub-area of synthetic perfluorinated chemistry proportionately attracts widespread interest by applying to all areas of chemistry including organic and inorganic. Particularly, the latter is much underdeveloped as metal complexes with perfluoroalkyl moieties are scarce, with the vast majority of perfluorinated analogs, of long known, halo and alkylated derivatives never having been synthesized. Focusing on the chemistry of trifluoromethyl group, which is the most important in the class of perfluoroalkyls, we set out to explore the possibility of synthesizing and completely characterizing a cyclohexadienyl metal complex. Upon utilizing a number of trifluorometylating reagents, we only arrived at an efficient preparation by the use of Morrison’s trifluormethylating reagent. As a result, the new, air- and moisture-sensitive complex (η5-C6H7)Fe(CO)2CF3, was prepared in 71% yield, using a nucleophilic iodo-for-trifluoromethyl substitution, and was completely characterized including by X-ray crystallography.
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Affiliation(s)
- Chris Douvris
- Department of Biological and Chemical Sciences, New York Institute of Technology, Old Westbury, NY 11564, USA
- Correspondence:
| | - David Matatov
- Department of Biological and Chemical Sciences, New York Institute of Technology, Old Westbury, NY 11564, USA
| | - Derek Bussan
- Department of Chemistry, Eastern Kentucky University, 521 Lancaster Ave., Richmond, KY 40475, USA
| | - Christos Lampropoulos
- Florida State College at Jacksonville, Jacksonville, FL 32202, USA
- James Weldon Johnson MS, Duval County Public Schools, Jacksonville, FL 32207, USA
- Department of Chemistry, University of Illinois Chicago, 845 W. Taylor St., Chicago, IL 60607, USA
| | - Donald J. Wink
- Department of Chemistry, University of Illinois Chicago, 845 W. Taylor St., Chicago, IL 60607, USA
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5
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Liu K, Studer A. Formal β-C-H Arylation of Aldehydes and Ketones by Cooperative Nickel and Photoredox Catalysis. Angew Chem Int Ed Engl 2022; 61:e202206533. [PMID: 35656716 PMCID: PMC9400853 DOI: 10.1002/anie.202206533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Indexed: 01/19/2023]
Abstract
α-C-H-functionalization of ketones and aldehydes has been intensively explored in organic synthesis. The functionalization of unactivated β-C-H bonds in such carbonyl compounds is less well investigated and developing a general method for their β-C-H arylation remains challenging. Herein we report a method that uses cooperative nickel and photoredox catalysis for the formal β-C-H arylation of aldehydes and ketones with (hetero)aryl bromides. The method features mild conditions, remarkable scope and wide functional group tolerance. Importantly, the introduced synthetic strategy also allows the β-alkenylation, β-alkynylation and β-acylation of aldehydes under similar conditions. Mechanistic studies revealed that this transformation proceeds through a single electron oxidation/Ni-mediated coupling/reductive elimination cascade.
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Affiliation(s)
- Kun Liu
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
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6
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Liu K, Studer A. Formal β‐C‐H Arylation of Aldehydes and Ketones by Cooperative Nickel and Photoredox Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kun Liu
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Chemistry and pharmacy GERMANY
| | - Armido Studer
- Westfalische Wilhelms-Universitat Munster Organisch-Chemisches Institut Corrensstrasse 40 48149 Münster GERMANY
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7
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Mondal S, Dumur F, Gigmes D, Sibi MP, Bertrand MP, Nechab M. Enantioselective Radical Reactions Using Chiral Catalysts. Chem Rev 2022; 122:5842-5976. [DOI: 10.1021/acs.chemrev.1c00582] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shovan Mondal
- Department of Chemistry, Syamsundar College, Shyamsundar 713424, West Bengal, India
| | - Frédéric Dumur
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire UMR 7273, F-13390e Marseille, France
| | - Didier Gigmes
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire UMR 7273, F-13390e Marseille, France
| | - Mukund P. Sibi
- Department of Chemistry and Biochemistry North Dakota State University, Fargo, North Dakota 58108, United States
| | - Michèle P. Bertrand
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire UMR 7273, F-13390e Marseille, France
| | - Malek Nechab
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire UMR 7273, F-13390e Marseille, France
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8
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Wang M, Li M, Zhang L, Song R, Yang D, Lv J. Photocatalytic Redox-Neutral Reaction of γ-Indolyl α-Keto Esters. Org Chem Front 2022. [DOI: 10.1039/d1qo01890f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct γ-C(sp3)-H activation of saturated α-keto esters has long been an elusive transformation. We found that photo-redox catalysis IrIII in combination with DABCO as dual hydrogen-bonding donor and organic...
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9
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Zhou X, Xu Y, Dong G. Olefination via Cu-Mediated Dehydroacylation of Unstrained Ketones. J Am Chem Soc 2021; 143:20042-20048. [PMID: 34807585 DOI: 10.1021/jacs.1c09587] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The dehydroacylation of ketones to olefins is realized under mild conditions, which exhibits a unique reaction pathway involving aromatization-driven C-C cleavage to remove the acyl moiety, followed by Cu-mediated oxidative elimination to form an alkene between the α and β carbons. The newly adopted N'-methylpicolinohydrazonamide (MPHA) reagent is key to enable efficient cleavage of ketone C-C bonds at room temperature. Diverse alkyl- and aryl-substituted olefins, dienes, and special alkenes are generated with broad functional group tolerance. Strategic applications of this method are also demonstrated.
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Affiliation(s)
- Xukai Zhou
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Yan Xu
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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10
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Džambaski Z, Bondžić AM, Triandafillidi I, Kokotos CG, Bondžić BP. Organocatalytic, Organic Oxidant Promoted, Enamine C−H Oxidation/Cyclopropanation Reaction. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zdravko Džambaski
- University of Belgrade-Institute of Chemistry Technology and Metallurgy Department of Chemistry Njegoševa 12 11000 Belgrade, Republic of Serbia
| | - Aleksandra M. Bondžić
- Vinča Institute of Nuclear Sciences National Institute of the Republic of Serbia University of Belgrade P.O. Box 522 11000 Belgrade Serbia
| | - Ierasia Triandafillidi
- 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
| | - Bojan P. Bondžić
- University of Belgrade-Institute of Chemistry Technology and Metallurgy Department of Chemistry Njegoševa 12 11000 Belgrade, Republic of Serbia
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11
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Shabani S, Wu Y, Ryan HG, Hutton CA. Progress and perspectives on directing group-assisted palladium-catalysed C-H functionalisation of amino acids and peptides. Chem Soc Rev 2021; 50:9278-9343. [PMID: 34254063 DOI: 10.1039/d0cs01441a] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Peptide modifications can unlock a variety of compounds with structural diversity and abundant biological activity. In nature, peptide modifications, such as functionalisation at the side-chain position of amino acids, are performed using post-translational modification enzymes or incorporation of unnatural amino acids. However, accessing these modifications remains a challenge for organic chemists. During the past decades, selective C-H activation/functionalisation has attracted considerable attention in synthetic organic chemistry as a pathway to peptide modification. Various directing group strategies have been discovered that assist selective C-H activation. In particular, bidentate directing groups that enable tuneable and reversible coordination are now recognised as one of the most efficient methods for the site-selective C-H activation and functionalisation of numerous families of organic compounds. Synthetic peptide chemists have harnessed bidentate directing group strategies for selective functionalisation of the β- and γ-positions of amino acids. This method has been expanded and recognised as an effective device for the late stage macrocyclisation and total synthesis of complex peptide natural products. In this review, we discuss various β-, γ-, and δ-C(sp3)-H bond functionalisation reactions of amino acids for the formation of C-X bonds with the aid of directing groups and their application in late-stage macrocyclisation and the total synthesis of complex peptide natural products.
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Affiliation(s)
- Sadegh Shabani
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria, 3010, Australia.
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12
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Li J, Lear MJ, Hayashi Y. Direct Cyclopropanation of α-Cyano β-Aryl Alkanes by Light-Mediated Single Electron Transfer Between Donor-Acceptor Pairs. Chemistry 2021; 27:5901-5905. [PMID: 33565170 DOI: 10.1002/chem.202100341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/08/2021] [Indexed: 12/21/2022]
Abstract
Cyclopropanes are traditionally prepared by the formal [2+1] addition of carbene or radical based C1 units to alkenes. In contrast, the one-pot intermolecular cyclopropanation of alkanes by redox active C1 units has remained unrealised. Herein, we achieved this process simply by exposing β-aryl propionitriles and C1 radical precursors (N-oxy esters) to base and blue light. The overall process is redox-neutral and a photocatalyst, whether metal- or organic-based, is not required. Our findings support that single electron transfer (SET) from the α-cyano carbanion of the propionitrile to the N-oxy ester is facilitated by blue-light via their electron donor-acceptor (EDA) complex. The α-cyano carbon radical thus formed can then lose a β-proton to form a π-resonance stabilised radical anion that preferentially couples at the benzylic β-position with a decarboxylated C1 radical unit. This new transition metal-free chemistry tolerates both electron rich and electron deficient (hetero)aryl systems, even sulfide or alkene functionality, to afford a range of cis-aryl/cyano cyclopropanes bearing congested tetrasubstituted quaternary carbons.
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Affiliation(s)
- Jing Li
- Department of Chemistry, Graduate School of Science, Tohoku University, Aza-Aoba, Aoba-ku, Sendai, 980-8578, Japan
| | - Martin J Lear
- School of Chemistry, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, UK
| | - Yujiro Hayashi
- Department of Chemistry, Graduate School of Science, Tohoku University, Aza-Aoba, Aoba-ku, Sendai, 980-8578, Japan
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13
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Wang D, Song Z, Zhang J, Xu T. Remote methylene C(sp 3)–H functionalization enabled by organophosphine-catalyzed alkyne isomerization. Org Chem Front 2021. [DOI: 10.1039/d0qo01399d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Non classical EWG-activated arylalkynes as C1 units in organophosphine catalyzed diverse remote sp3 C–H functionalization.
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Affiliation(s)
- De Wang
- Molecular Synthesis Center (MSC) & Key Laboratory of Marine Drugs
- Ministry of Education; School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
- China
| | - Zefeng Song
- Molecular Synthesis Center (MSC) & Key Laboratory of Marine Drugs
- Ministry of Education; School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
- China
| | - Jianyu Zhang
- Molecular Synthesis Center (MSC) & Key Laboratory of Marine Drugs
- Ministry of Education; School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
- China
| | - Tao Xu
- Molecular Synthesis Center (MSC) & Key Laboratory of Marine Drugs
- Ministry of Education; School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
- China
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14
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Jiang NQ, Li HY, Cai ZJ, Ji SJ. The Mizoroki–Heck reaction initiated formal C(sp 3)–H arylation of carbonyl compounds. Org Chem Front 2021. [DOI: 10.1039/d1qo00769f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work described a Mizoroki–Heck reaction initiated formal C(sp3)–H arylation of α-methylcinnamaldehydes under phosphane-free conditions.
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Affiliation(s)
- Nan-Quan Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Hai-Yan Li
- Analysis and Testing Center, Soochow University, Suzhou 215123, China
| | - Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
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15
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16
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Lapuh MI, Mazeh S, Besset T. Chiral Transient Directing Groups in Transition-Metal-Catalyzed Enantioselective C–H Bond Functionalization. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03317] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maria I. Lapuh
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Sara Mazeh
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
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17
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Wang C, Naren NA, Zheng P, Dong G. Intramolecular β-Alkenylation of Cyclohexanones via Pd-Catalyzed Desaturation-Mediated C(sp 3)-H/Alkyne Coupling. J Am Chem Soc 2020; 142:8962-8971. [PMID: 32307996 DOI: 10.1021/jacs.0c02654] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Site-selective C-C bond formation through the direct coupling of C(sp3)-H bonds with unsaturated hydrocarbons represents an atom-economical and redox-neutral way to functionalize chemically inert positions, such as those β to a carbonyl group. While most existing β-functionalization methods utilize a directing group (DG) strategy, here we report a Pd-catalyzed intramolecular β-alkenylation of ketones using alkynes as the coupling partner without the aid of DGs. Mediated by a ketone desaturation process, the reaction is redox-neutral and avoids using strong acids or bases. The resulting cis-5,6-fused bicycles can be diversely derivatized with excellent selectivity. Mechanistic studies imply an unusual "hydride-transfer" chain-like pathway, which involves the cyclometalation of an enyne intermediate and protonation of the resulting Pd enolate followed by an intermolecular hydride transfer through the desaturation of another substrate.
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Affiliation(s)
- Chengpeng Wang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Nevin A Naren
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Pengfei Zheng
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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18
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Wang C, Dong G. Catalytic β-Functionalization of Carbonyl Compounds Enabled by α,β-Desaturation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01519] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chengpeng Wang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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19
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Akagi Y, Fukuyama S, Komatsu T. Palladium-Catalyzed β-Arylation of Cyclic α,β-Unsaturated O-Methyl Oximes with Aryl Iodides. Chem Pharm Bull (Tokyo) 2020; 68:288-291. [PMID: 32115536 DOI: 10.1248/cpb.c19-01012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We report a Pd-catalyzed β-arylation of cyclic α,β-unsaturated O-methyl oximes with aryl iodides. This reaction shows complete regioselectivity and excellent functional group tolerance. β-Arylation of 2-cyclohexen-1-one O-methyl oxime (existing as 2 : 1 E/Z mixture) with certain aryl iodides such as 4-iodoanisole affords only β-arylated (E)-O-methyl oximes.
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Affiliation(s)
- Yusuke Akagi
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University
| | - Shiori Fukuyama
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University
| | - Toshiya Komatsu
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University
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20
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Rej S, Ano Y, Chatani N. Bidentate Directing Groups: An Efficient Tool in C-H Bond Functionalization Chemistry for the Expedient Construction of C-C Bonds. Chem Rev 2020; 120:1788-1887. [PMID: 31904219 DOI: 10.1021/acs.chemrev.9b00495] [Citation(s) in RCA: 583] [Impact Index Per Article: 145.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
During the past decades, synthetic organic chemistry discovered that directing group assisted C-H activation is a key tool for the expedient and siteselective construction of C-C bonds. Among the various directing group strategies, bidentate directing groups are now recognized as one of the most efficient devices for the selective functionalization of certain positions due to fact that its metal center permits fine, tunable, and reversible coordination. The family of bidentate directing groups permit various types of assistance to be achieved, such as N,N-dentate, N,O-dentate, and N,S-dentate auxiliaries, which are categorized based on the coordination site. In this review, we broadly discuss various C-H bond functionalization reactions for the formation of C-C bonds with the aid of bidentate directing groups.
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Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
| | - Yusuke Ano
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
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21
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Li D, Jia Z, Jiang Y, Jia J, Zhao X, Li Z, Xu Z. One‐Pot Functionalization of 8‐Aminoquinolines through the Acylation and Regioselective C5‐H Halogenation under Transition‐Metal‐Free Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201904286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dandan Li
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Zhenzhen Jia
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Yongshuai Jiang
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Jingpeng Jia
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Xiaowei Zhao
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Zehui Li
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
| | - Zhihong Xu
- School of Chemistry and Chemical EngineeringXuchang University No.88, Bayi Road, Xuchang Henan 461000 P. R. China
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22
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Bauer A, Maulide N. Chemoselective formal β-functionalization of substituted aliphatic amides enabled by a facile stereoselective oxidation event. Chem Sci 2019; 10:9836-9840. [PMID: 32015806 PMCID: PMC6977552 DOI: 10.1039/c9sc03715b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 08/29/2019] [Indexed: 11/21/2022] Open
Abstract
Aliphatic C-H functionalization is a topic of current intense interest in organic synthesis. Herein, we report that a facile and stereoselective dehydrogenation event enables the functionalization of aliphatic amides at different positions in a one-pot fashion. Derivatives of relevant pharmaceuticals were formally functionalized in the β-position in late-stage manner. A single-step synthesis of incrustoporine from a simple precursor further showcases the potential utility of this approach.
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Affiliation(s)
- Adriano Bauer
- 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 .
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23
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Chen M, Dong G. Copper-Catalyzed Desaturation of Lactones, Lactams, and Ketones under pH-Neutral Conditions. J Am Chem Soc 2019; 141:14889-14897. [DOI: 10.1021/jacs.9b07932] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ming Chen
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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24
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Yang J, Fu X, Tang S, Deng K, Zhang L, Yang X, Ji Y. 2-Amino-5,6-difluorophenyl-1 H-pyrazole-Directed Pd II Catalysis: Arylation of Unactivated β-C(sp 3)-H Bonds. J Org Chem 2019; 84:10221-10236. [PMID: 31313581 DOI: 10.1021/acs.joc.9b01276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Palladium-catalyzed arylation of unactivated β-C(sp3)-H bonds in carboxylic acid derivatives with aryl iodides is described for the first time using 2-amino-5,6-difluorophenyl-1H-pyrazole as an efficient and readily removable directing group. Two fluoro groups are installed at the 5- and 6-position of the anilino moiety in 2-aminophenyl-1H-pyrazole, clearly enhancing the directing ability of the auxiliary. In addition, the protocol employs Cu(OAc)2/Ag3PO4 (1.2/0.3) as additives, evidently reducing the stoichiometric amount of expensive silver salts. Furthermore, this process exhibits high β-site selectivity, compatibility with diverse substrates containing α-hydrogen atoms, and excellent functional group tolerance.
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Affiliation(s)
| | | | | | | | | | - Xianjin Yang
- Key Laboratory of Organofluorine Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Science , 345 Lingling Road , Shanghai 200032 , P. R. China
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25
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Hu R, Chen FJ, Zhang X, Zhang M, Su W. Copper-catalyzed dehydrogenative γ-C(sp 3)-H amination of saturated ketones for synthesis of polysubstituted anilines. Nat Commun 2019; 10:3681. [PMID: 31417081 PMCID: PMC6695438 DOI: 10.1038/s41467-019-11624-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 07/24/2019] [Indexed: 11/09/2022] Open
Abstract
Metal-catalyzed β-C-H functionalization of saturated carbonyls via dehydrogenative desaturation proved to be a powerful tool for simplifying synthesis of valuable β-substituted carbonyls. Here, we report a copper-catalyzed dehydrogenative γ-C(sp3)-H amination of saturated ketones that initiates the three-component coupling of saturated ketones, amines and N-substituted maleimides to construct polysubstituted anilines. The protocol presented herein enables both linear and α-branched butanones to couple a wide spectrum of amines and various N-substituted maleimides to produce diverse tetra- or penta-substituted anilines in fair-to-excellent yields with good functional group tolerance. The mechanism studies support that this ketone dehydrogenative γ-C(sp3)-H amination was triggered by the ketone α,β-dehydrogenation desaturation that activates the adjacent γ-C(sp3)-H bond towards functionalization. This α,β-dehydrogenation desaturation-triggered cascade sequence opens up a new avenue to the remote C(sp3)-H functionalization of saturated ketones and has the potential to enable the rapid syntheses of complex compounds from simple starting materials.
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Affiliation(s)
- Rong Hu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Fa-Jie Chen
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Xiaofeng Zhang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Min Zhang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Weiping Su
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China.
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26
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Yoo HS, Son SH, Cho YY, Lee SJ, Jang HJ, Kim YM, Kim DH, Kim NY, Park BY, Lee YS, Kim NJ. Synthesis of Flavanones via Palladium(II)-Catalyzed One-Pot β-Arylation of Chromanones with Arylboronic Acids. J Org Chem 2019; 84:10012-10023. [DOI: 10.1021/acs.joc.9b01162] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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27
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Džambaski Z, Tzaras D, Lee S, Kokotos CG, Bondzic BP. Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zdravko Džambaski
- Center for Chemistry, ICTM instituteUniversity of Belgrade Njegoseva 12 11 000 Belgrade Serbia
| | - Dimitrios‐Ioannis Tzaras
- Laboratory of Organic Chemistry, Departmentof ChemistryNational and Kapodistrian University of Athens, Panepistimiopolis 15771 Athens Greece
| | - Sunggi Lee
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Christoforos G. Kokotos
- Laboratory of Organic Chemistry, Departmentof ChemistryNational and Kapodistrian University of Athens, Panepistimiopolis 15771 Athens Greece
| | - Bojan P. Bondzic
- Center for Chemistry, ICTM instituteUniversity of Belgrade Njegoseva 12 11 000 Belgrade Serbia
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28
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Abstract
A direct β-alkenylation of simple ketones with alkenyl bromides is reported via a Pd-catalyzed redox cascade strategy. The reaction is redox neutral and directing-group-free, in the absence of strong acids or bases. Both cyclic and linear ketones are suitable substrates, and various alkenyl bromides can be coupled. The resulting β-alkenyl ketones are readily derivatized through diverse alkene functionalization.
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Affiliation(s)
- Chengpeng Wang
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Alexander J Rago
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Guangbin Dong
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
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29
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Li Y, Zhang Z. Mechanism and stereoselectivity in NHC-catalyzed β-functionalization of saturated carboxylic ester. RSC Adv 2019; 9:7635-7644. [PMID: 35521168 PMCID: PMC9061211 DOI: 10.1039/c8ra10262g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 02/28/2019] [Indexed: 12/18/2022] Open
Abstract
To understand the mechanism and origin of the stereoselectivity of the [3 + 2] annulation reaction between a carboxylic ester and an isatin generating spirooxindole lactone catalyzed by N-heterocyclic carbene (NHC), density functional theory (DFT) calculations have been carried out. DFT results indicate that the catalytic cycle begins with the coupling of the catalyst with benzotriazole ester, followed by α-deprotonation to produce the enolate intermediate. The subsequent 1,4-proton transfer affords the homoenolate intermediate. The next crucial step is the stereoselective C-C bond formation. Then proton transfer takes place leading to the formation of the lactone intermediate. Finally, the elimination of the catalyst furnishes the final product. The presence of 1-hydroxybenzotriazole (HOBt) dramatically accelerates the proton transfer step. More importantly, HOBt has a non-negligible impact on stereoselective C-C bond formation, and the SR-configured product is the major stereoisomer of the annulation product, which is in good agreement with the experimental observations. The differential π⋯π stacking, C-H⋯π, lone pair (LP)⋯π and repulsion interactions are found to be responsible for the stereoselectivity. The obtained mechanistic insights should provide valuable information for understanding the important roles of the NHC catalyst and HOBt additive and be helpful for designing better NHC catalysts for this kind of reaction.
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Affiliation(s)
- Yan Li
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China +86-412-5929627 +86-18741219506
| | - Zhiqiang Zhang
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China +86-412-5929627 +86-18741219506
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30
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Chen M, Rago AJ, Dong G. Platinum-Catalyzed Desaturation of Lactams, Ketones, and Lactones. Angew Chem Int Ed Engl 2018; 57:16205-16209. [PMID: 30325556 DOI: 10.1002/anie.201811197] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Indexed: 12/16/2022]
Abstract
The development of a general platinum-catalyzed desaturation of N-protected lactams, ketones, and lactones to their conjugated α,β-unsaturated counterparts is reported. The reaction operates under mildly acidic conditions at room temperature or 50 °C. It is scalable and tolerates a wide range of functional groups. The complementary reactivity to the palladium-catalyzed desaturation is demonstrated in the efficient conversion of iodide, bromide, and sulfur-containing substrates.
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Affiliation(s)
- Ming Chen
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Alexander J Rago
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
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31
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Chen M, Rago AJ, Dong G. Platinum‐Catalyzed Desaturation of Lactams, Ketones, and Lactones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811197] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ming Chen
- Department of ChemistryUniversity of Chicago Chicago IL 60637 USA
| | | | - Guangbin Dong
- Department of ChemistryUniversity of Chicago Chicago IL 60637 USA
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32
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Revathi L, Ravindar L, Fang WY, Rakesh KP, Qin HL. Visible Light-Induced C−H Bond Functionalization: A Critical Review. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800736] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Lekkala Revathi
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - Lekkala Ravindar
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - Wan-Yin Fang
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - K. P. Rakesh
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
| | - Hua-Li Qin
- State Key Laboratory of Silicate Materials for Architectures; and School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan, Hubei Province 430070 People's Republic of China
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33
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Rao WH, Jiang LL, Zhao JX, Jiang X, Zou GD, Zhou YQ, Tang L. Selective O-Cyclization of N-Methoxy Aryl Amides with CH 2Br 2 or 1,2-DCE via Palladium-Catalyzed C-H Activation. Org Lett 2018; 20:6198-6201. [PMID: 30226060 DOI: 10.1021/acs.orglett.8b02678] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A selective O-cyclization of N-methoxy aryl amides with CH2Br2 or 1,2-DCE (1,2-dichloroethane) via palladium-catalyzed C-H activation has been described. New C(sp3)-O and C(sp2)-C(sp3) bonds are forged simultaneously with the assistance of an N-methoxy amide group, and good functional group tolerance in substrates is observed. Preliminary mechanistic investigations show that the process may involve a five-membered palladacycle intermediate.
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Affiliation(s)
- Wei-Hao Rao
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang 464000 , China.,Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan , Xinyang Normal University , Xinyang 464000 , China
| | - Li-Li Jiang
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang 464000 , China
| | - Jin-Xiao Zhao
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang 464000 , China
| | - Xin Jiang
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang 464000 , China
| | - Guo-Dong Zou
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang 464000 , China
| | - Yu-Qiang Zhou
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang 464000 , China
| | - Lin Tang
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang 464000 , China
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34
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35
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Zhu L, Wang D, Jia Z, Lin Q, Huang M, Luo S. Catalytic Asymmetric Oxidative Enamine Transformations. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01263] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Lihui Zhu
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Dehong Wang
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Zongbin Jia
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Qifeng Lin
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
| | - Mouxin Huang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Sanzhong Luo
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100490, People’s Republic of China
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People’s Republic of China
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36
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Wang C, Dong G. Direct β-Alkylation of Ketones and Aldehydes via Pd-Catalyzed Redox Cascade. J Am Chem Soc 2018; 140:6057-6061. [PMID: 29708741 DOI: 10.1021/jacs.8b03530] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report a direct β-alkylation of ketones and aldehydes with simple alkyl bromides through a Pd-catalyzed redox-cascade strategy. The use of a Cu cocatalyst is important for improved efficiency. The reaction is redox-neutral, without the need for strong acids or bases. Both cyclic and acyclic ketones, as well as α-branched aldehydes, are suitable substrates for coupling with secondary and tertiary alkyl bromides. Concise formal synthesis of Zanapezil is achieved using this β-alkylation method.
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Affiliation(s)
- Chengpeng Wang
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Guangbin Dong
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
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37
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Li H, Jiang Q, Jie X, Shang Y, Zhang Y, Goossen LJ, Su W. Rh/Cu-Catalyzed Ketone β-Functionalization by Merging Ketone Dehydrogenation and Carboxyl-Directed C–H Alkylation. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00923] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongyi Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Quandi Jiang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiaoming Jie
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
| | - Yaping Shang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
| | - Yuanfei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
| | - Lukas J. Goossen
- Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Weiping Su
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s Republic of China
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38
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Abstract
A chiral primary amine catalyzed oxidative β-C-H functionalization of ketone is described. The reaction proceeds via ketone enamine oxidation by IBX and enables highly enantioselective remote C-H functionalization of both cyclic and acyclic ketones, generating chiral ketones bearing β-stereocenters.
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Affiliation(s)
- Lihui Zhu
- Key Laboratory of Molecular Recognition and Function , Chinese Academy of Sciences , Beijing 100190 , China.,College of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100490 , China
| | - Long Zhang
- Key Laboratory of Molecular Recognition and Function , Chinese Academy of Sciences , Beijing 100190 , China.,College of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100490 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071 , China
| | - Sanzhong Luo
- Key Laboratory of Molecular Recognition and Function , Chinese Academy of Sciences , Beijing 100190 , China.,College of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100490 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071 , China
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39
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40
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Chen M, Liu F, Dong G. Direct Palladium-Catalyzed β-Arylation of Lactams. Angew Chem Int Ed Engl 2018; 57:3815-3819. [PMID: 29424015 DOI: 10.1002/anie.201800958] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Indexed: 01/20/2023]
Abstract
A direct and catalytic method is reported here for β-arylation of N-protected lactams with simple aryl iodides. The transformation is enabled by merging soft enolization of lactams, palladium-catalyzed desaturation, Ar-X bond activation, and aryl conjugate addition. The reaction is operated under mild reaction conditions, is scalable, and is chemoselective. Application of this method to concise syntheses of pharmaceutically relevant compounds is demonstrated.
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Affiliation(s)
- Ming Chen
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Feipeng Liu
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA.,Department of Applied Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, China
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
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41
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Zhang X, Tutkowski B, Oliver A, Helquist P, Wiest O. Mechanistic Study of the Nickel-Catalyzed α,β-Coupling of Saturated Ketones. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xin Zhang
- Laboratory
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Brandon Tutkowski
- Department
of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Allen Oliver
- Department
of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Paul Helquist
- Department
of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Olaf Wiest
- Department
of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
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42
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Jiang H, Studer A. α-Aminoxy-Acid-Auxiliary-Enabled Intermolecular Radical γ-C(sp3
)−H Functionalization of Ketones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712066] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
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43
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Jiang H, Studer A. α-Aminoxy-Acid-Auxiliary-Enabled Intermolecular Radical γ-C(sp3
)−H Functionalization of Ketones. Angew Chem Int Ed Engl 2018; 57:1692-1696. [DOI: 10.1002/anie.201712066] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
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44
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Li X, Wu H, Lang Y, Huang G. Mechanism, selectivity, and reactivity of iridium- and rhodium-catalyzed intermolecular ketone α-alkylation with unactivated olefinsviaan enamide directing strategy. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00290h] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations were performed to investigate the title reaction, focusing on detailed reaction mechanism and origins of selectivity and reactivity.
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Affiliation(s)
- Xiaojie Li
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Hongli Wu
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yanmin Lang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Genping Huang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
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45
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Jiang Y, Deng JD, Wang HH, Zou JX, Wang YQ, Chen JH, Zhu LQ, Zhang HH, Peng X, Wang Z. Direct access to α-sulfenylated amides/esters via sequential oxidative sulfenylation and C–C bond cleavage of 3-oxobutyric amides/esters. Chem Commun (Camb) 2018; 54:802-805. [DOI: 10.1039/c7cc09026a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficient, environmentally benign and unprecedented synthesis of various α-sulfenylated amides/esters has been developed under oxygen atmosphere.
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Affiliation(s)
- Yi Jiang
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
| | - Jie-dan Deng
- Institution State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Hui-hong Wang
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
| | - Jiao-xia Zou
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
| | | | - Jin-hong Chen
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
| | - Long-qing Zhu
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
| | - Hong-hua Zhang
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
| | - Xue Peng
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University
- Lanzhou 730000
- China
- Institution State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
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46
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Ma J, Rosales AR, Huang X, Harms K, Riedel R, Wiest O, Meggers E. Visible-Light-Activated Asymmetric β-C-H Functionalization of Acceptor-Substituted Ketones with 1,2-Dicarbonyl Compounds. J Am Chem Soc 2017; 139:17245-17248. [PMID: 29161036 PMCID: PMC8103785 DOI: 10.1021/jacs.7b09152] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a visible-light-activated asymmetric β-C(sp3)-H functionalization of 2-acyl imidazoles and 2-acylpyridines with 1,2-dicarbonyl compounds (typically α-ketoesters) catalyzed by a tailored stereogenic-at-rhodium Lewis acid catalyst. The C-C bond formation products are obtained in high yields (up to 99%) and with excellent stereoselectivities (up to >20:1 dr and up to >99% ee). Experimental and computational studies support a mechanism in which a photoactivated Rh-enolate transfers a single electron to the 1,2-dicarbonyl compound followed by proton transfer and a subsequent stereocontrolled radical-radical recombination.
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Affiliation(s)
- Jiajia Ma
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Anthony R. Rosales
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Xiaoqiang Huang
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Klaus Harms
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Radostan Riedel
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
| | - Olaf Wiest
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Laboratory of Computational Chemistry and Drug Design, School of Chemical Biology and Biotechnology, Peking University, Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Eric Meggers
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
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47
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Ling F, Xiao L, Fang L, Lv Y, Zhong W. Copper Catalysis for Nicotinate Synthesis through β-
Alkenylation/Cyclization of Saturated Ketones with β
-Enamino Esters. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fei Ling
- Key Laboratory of Pharmaceutical Engineering of Ministry of Education; College of Pharmaceutical Science; Zhejiang University of Technology; Hangzhou 310014, People's Republic of China
| | - Lian Xiao
- Key Laboratory of Pharmaceutical Engineering of Ministry of Education; College of Pharmaceutical Science; Zhejiang University of Technology; Hangzhou 310014, People's Republic of China
| | - Lu Fang
- Key Laboratory of Pharmaceutical Engineering of Ministry of Education; College of Pharmaceutical Science; Zhejiang University of Technology; Hangzhou 310014, People's Republic of China
| | - Yaping Lv
- Key Laboratory of Pharmaceutical Engineering of Ministry of Education; College of Pharmaceutical Science; Zhejiang University of Technology; Hangzhou 310014, People's Republic of China
| | - Weihui Zhong
- Key Laboratory of Pharmaceutical Engineering of Ministry of Education; College of Pharmaceutical Science; Zhejiang University of Technology; Hangzhou 310014, People's Republic of China
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48
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Chen Y, Huang D, Zhao Y, Newhouse TR. Allyl-Palladium-Catalyzed Ketone Dehydrogenation Enables Telescoping with Enone α,β-Vicinal Difunctionalization. Angew Chem Int Ed Engl 2017; 56:8258-8262. [PMID: 28561999 PMCID: PMC5884112 DOI: 10.1002/anie.201704874] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Indexed: 12/14/2022]
Abstract
The telescoping of allyl-palladium catalyzed ketone dehydrogenation with organocuprate conjugate addition chemistry allows for the introduction of aryl, heteroaryl, vinyl, acyl, methyl, and other functionalized alkyl groups chemoselectively to a wide variety of unactivated ketone compounds via their enone counterparts. The compatibility of the dehydrogenation conditions additionally allows for efficient trapping of the intermediate enolate with various electrophiles. The utility of this approach is demonstrated by comparison to several previously reported multistep sequences.
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Affiliation(s)
- Yifeng Chen
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 208107, New Haven, CT, 06511, USA
| | - David Huang
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 208107, New Haven, CT, 06511, USA
| | - Yizhou Zhao
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 208107, New Haven, CT, 06511, USA
| | - Timothy R Newhouse
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 208107, New Haven, CT, 06511, USA
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49
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Sheverdov VP, Mar’yasov MA, Davydova VV, Nasakin OE, Dorovatovskii PV, Khrustalev VN. Reaction of methyl 2,4-dioxobutanoates with tetracyanoethylene. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217070088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Chen Y, Huang D, Zhao Y, Newhouse TR. Allyl‐Palladium‐Catalyzed Ketone Dehydrogenation Enables Telescoping with Enone α,β‐Vicinal Difunctionalization. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704874] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yifeng Chen
- Department of Chemistry Yale University 225 Prospect Street, PO Box 208107 New Haven CT 06511 USA
| | - David Huang
- Department of Chemistry Yale University 225 Prospect Street, PO Box 208107 New Haven CT 06511 USA
| | - Yizhou Zhao
- Department of Chemistry Yale University 225 Prospect Street, PO Box 208107 New Haven CT 06511 USA
| | - Timothy R. Newhouse
- Department of Chemistry Yale University 225 Prospect Street, PO Box 208107 New Haven CT 06511 USA
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