1
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Bhorali P, Phukon J, Gogoi S. Rh(III)-catalyzed (5 + 2)-cycloaddition reactions of ortho-hydroxyethyl phenols with internal alkynes: efficient synthesis of benzoxepines. Org Biomol Chem 2023; 21:2516-2523. [PMID: 36891904 DOI: 10.1039/d3ob00170a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
An unprecedented (5 + 2)-cycloaddition reaction of ortho-hydroxyethyl phenol and internal alkyne was developed. This Rh(III)-catalyzed reaction provided benzoxepine derivatives which have very high biological significance. A wide range of ortho-hydroxyethyl phenols and internal alkynes were studied to provide the benzoxepines in high yields.
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Affiliation(s)
- Pratiksha Bhorali
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Jyotshna Phukon
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
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2
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Sihag P, Chakraborty T, Jeganmohan M. Rhodium-Catalyzed Allylic C-H Functionalization of Unactivated Alkenes with α-Diazocarbonyl Compounds. Org Lett 2023. [PMID: 36795960 DOI: 10.1021/acs.orglett.2c04356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
A redox-neutral mild methodology for the allylic C-H alkylation of unactivated alkenes with diazo compounds is demonstrated. The developed protocol is able to bypass the possibility of the cyclopropanation of an alkene upon its reaction with the acceptor-acceptor diazo compounds. The protocol is highly accomplished due to its compatibility with various unactivated alkenes functionalized with different sensitive functional groups. A rhodacycle π-allyl intermediate has been synthesized and proved to be the active intermediate. Additional mechanistic investigations aided the elucidation of the plausible reaction mechanism.
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Affiliation(s)
- Pinki Sihag
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Trisha Chakraborty
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
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3
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Wakikawa T, Sekine D, Murata Y, Bunno Y, Kojima M, Nagashima Y, Tanaka K, Yoshino T, Matsunaga S. Native Amide-Directed C(sp 3 )-H Amidation Enabled by Electron-Deficient Rh III Catalyst and Electron-Deficient 2-Pyridone Ligand. Angew Chem Int Ed Engl 2022; 61:e202213659. [PMID: 36305194 DOI: 10.1002/anie.202213659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 11/07/2022]
Abstract
Trivalent group-9 metal catalysts with a cyclopentadienyl-type ligand (CpMIII ; M=Co, Rh, Ir, Cp=cyclopentadienyl) have been widely used for directed C-H functionalizations, albeit that their application to challenging C(sp3 )-H functionalizations suffers from the limitations of the available directing groups. In this report, we describe directed C(sp3 )-H amidation reactions of simple amide substrates with a variety of substituents. The combination of an electron-deficient CpE Rh catalyst (CpE =1,3-bis(ethoxycarbonyl)-substituted Cp) and an electron-deficient 2-pyridone ligand is essential for high reactivity.
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Affiliation(s)
- Takumi Wakikawa
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Daichi Sekine
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Yuta Murata
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Youka Bunno
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Kita-ku, Sapporo, 060-0812, Japan
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4
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Michigami K, Mita T, Sato Y. Catalytic Carbonyl Allylation Using Terminal Alkenes as Nucleophiles. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kenichi Michigami
- Department of Chemistry, Faculty of Science, Osaka Prefecture University
| | - Tsuyoshi Mita
- Institution for Chemical Reaction Design and Discovery, Hokkaido University
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5
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Yamashita Y, Sato I, Fukuyama R, Kobayashi S. Brønsted base-catalyzed imino-ene-type allylation reactions of simple alkenes as unactivated allyl compounds. Chem Commun (Camb) 2022; 58:2866-2869. [PMID: 35144278 DOI: 10.1039/d1cc06983g] [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
Catalytic imino-ene-type allylation reactions of unactivated allyl compounds were achieved. In the presence of a catalytic amount of a strongly basic KOtBu-LiTMP or NaOtBu-LiTMP mixed system, the desired reactions proceeded smoothly at low temperature. Notably, a gaseous alkene, propylene, could also be used in this reaction system.
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Affiliation(s)
- Yasuhiro Yamashita
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Io Sato
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Ryota Fukuyama
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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6
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Sihag P, Jeganmohan M. Rh(III)-Catalyzed allylic C-H amidation of unactivated alkenes with in situ generated iminoiodinanes. Chem Commun (Camb) 2021; 57:6428-6431. [PMID: 34095917 DOI: 10.1039/d1cc02283k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Rh(iii)-catalyzed allylic C-H amidation of substituted alkenes with in situ generated iminoiodinanes is demonstrated. The presented protocol is compatible with differently functionalized unactivated terminal alkenes and internal alkenes. In terminal alkenes, branch selectivity was observed exclusively. Based on the detailed mechanistic investigation, a possible reaction mechanism involving the in situ generated π-allyl as well as metal-nitrene intermediates has been proposed.
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Affiliation(s)
- Pinki Sihag
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
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7
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Pan D, Luo G, Yu Y, Yang J, Luo Y. Computational insights into Ir(iii)-catalyzed allylic C-H amination of terminal alkenes: mechanism, regioselectivity, and catalytic activity. RSC Adv 2021; 11:19113-19120. [PMID: 35478613 PMCID: PMC9033584 DOI: 10.1039/d1ra03842g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 01/10/2023] Open
Abstract
Computational studies on Ir(iii)-catalyzed intermolecular branch-selective allylic C–H amination of terminal olefins with methyl dioxazolone have been carried out to investigate the mechanism, including the origins of regioselectivity and catalytic activity difference. The result suggests that the reaction proceeds through generation of active species, alkene coordination, allylic C–H activation, decarboxylation, migratory insertion, and protodemetalation. The presence of AgNTf2 could thermodynamically promote the formation of catalytically active species [Cp*Ir(OAc)]+. Both the weaker Ir–C(internal) bond and the closer interatomic distance of N⋯C(internal) in the key allyl-Ir(v)-nitrenoid intermediate make the migratory insertion into Ir–C(internal) bond easier than into the Ir–C(terminal) bond, leading to branch-selective allylic C–H amidation. The high energy barrier for allylic C–H activation in the Co system could account for the observed sluggishness, which is mainly ascribed to the weaker coordination capacity of alkenes to the triplet Cp*Co(OAc)+ and the deficient metal⋯H interaction to assist hydrogen transfer. DFT studies on Ir(iii)-catalyzed branch-selective allylic C–H amination of terminal olefins with methyl dioxazolone have been carried out to investigate the mechanism, including the origins of regioselectivity and catalytic activity difference.![]()
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Affiliation(s)
- Deng Pan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology Dalian 116024 China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 China
| | - Yang Yu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology Dalian 116024 China
| | - Jimin Yang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology Dalian 116024 China
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology Dalian 116024 China .,PetroChina Petrochemical Research Institute Beijing 102206 China
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8
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Ma N, Liu Z, Huang J, Dang Y. Mechanistic studies of Cp*Ir(III)/Cp*Rh(III)-catalyzed branch-selective allylic C-H amidation: why is Cp*Ir(III) superior to Cp*Rh(III)? Org Biomol Chem 2021; 19:3850-3858. [PMID: 33949601 DOI: 10.1039/d1ob00446h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Density functional theory calculations have revealed the mechanism and origins of the reactivity and regioselectivity of the Cp*Ir(iii)/Cp*Rh(iii)-catalyzed allylic C-H amidation of alkenes and dioxazolones. Generally, the catalytic cycle consists of alkene coordination, C(sp3)-H activation, dioxazolone oxidative addition, reductive elimination and proto-demetallation to give the final amidation product. The C-H activation is found to be the rate-determining step, and it controls the reactivity of the reaction. For the Cp*Ir(iii)-catalyzed system, the C-H activation undergoes an Ir(iii)-assisted proton transfer process with a low energy barrier, elucidating its high reactivity. In contrast, the C-H activation step is more like a direct deprotonation in the Cp*Rh(iii)-catalyzed system, which is responsible for its higher barrier and lower reactivity. The branched-selectivity arises from the electronic effect of the alkyl group on the charge distribution over the allylic moiety. Herein, iridium(v) polarizes the allylic group greater than that of the rhodium(v) system, which accounts for its good regioselectivity. The mechanistic insights will be useful for the further development of transition metal-catalyzed selective C-H amination reactions.
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Affiliation(s)
- Nan Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China. and School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Zheyuan Liu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Jianhui Huang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Yanfeng Dang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China.
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9
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Takahashi H, Nagashima Y, Tanaka K. Rhodium(III)‐Catalyzed Oxidative Intramolecular 1,1‐Oxyamination of Alkenes with Protected Amino Acids to Produce Oxazoloisoindole‐2,5‐diones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100143] [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)
- Hiroto Takahashi
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku 152-8550 Tokyo Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku 152-8550 Tokyo Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku 152-8550 Tokyo Japan
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10
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Della‐Felice F, Zanini M, Jie X, Tan E, Echavarren AM. Rhodium(III)‐Catalyzed Synthesis of Skipped Enynes via C(sp
3
)–H Alkynylation of Terminal Alkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Franco Della‐Felice
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Margherita Zanini
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Xiaoming Jie
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Eric Tan
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
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11
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Della-Felice F, Zanini M, Jie X, Tan E, Echavarren AM. Rhodium(III)-Catalyzed Synthesis of Skipped Enynes via C(sp 3 )-H Alkynylation of Terminal Alkenes. Angew Chem Int Ed Engl 2021; 60:5693-5698. [PMID: 33410209 DOI: 10.1002/anie.202014877] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/24/2020] [Indexed: 12/18/2022]
Abstract
The RhIII -catalyzed allylic C-H alkynylation of non-activated terminal alkenes leads selectively to linear 1,4-enynes at room-temperature. The catalytic system tolerates a wide range of functional groups without competing functionalization at other positions. Similarly, the vinylic C-H alkynylation of α,β- and β,γ- unsaturated amides gives conjugated Z-1,3-enynes and E-enediynes.
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Affiliation(s)
- Franco Della-Felice
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Margherita Zanini
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Xiaoming Jie
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Eric Tan
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
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12
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Dalton T, Faber T, Glorius F. C-H Activation: Toward Sustainability and Applications. ACS CENTRAL SCIENCE 2021; 7:245-261. [PMID: 33655064 PMCID: PMC7908034 DOI: 10.1021/acscentsci.0c01413] [Citation(s) in RCA: 253] [Impact Index Per Article: 84.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Indexed: 05/14/2023]
Abstract
Since the definition of the "12 Principles of Green Chemistry" more than 20 years ago, chemists have become increasingly mindful of the need to conserve natural resources and protect the environment through the judicious choice of synthetic routes and materials. The direct activation and functionalization of C-H bonds, bypassing intermediate functional group installation is, in abstracto, step and atom economic, but numerous factors still hinder the sustainability of large-scale applications. In this Outlook, we highlight the research areas seeking to overcome the sustainability challenges of C-H activation: the pursuit of abundant metal catalysts, the avoidance of static directing groups, the replacement of metal oxidants, and the introduction of bioderived solvents. We close by examining the progress made in the subfield of aryl C-H borylation from its origins, through highly efficient but precious Ir-based systems, to emerging 3d metal catalysts. The future growth of this field will depend on industrial uptake, and thus we urge researchers to strive toward sustainable C-H activation.
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Affiliation(s)
- Toryn Dalton
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraβe 4048149 Münster, Germany
| | - Teresa Faber
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraβe 4048149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraβe 4048149 Münster, Germany
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13
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Pal D, Wright TB, O'Connor R, Evans PA. Regio- and Diastereoselective Rhodium-Catalyzed Allylic Substitution with Unstabilized Benzyl Nucleophiles. Angew Chem Int Ed Engl 2021; 60:2987-2992. [PMID: 32840011 DOI: 10.1002/anie.202008071] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Indexed: 01/14/2023]
Abstract
We have developed a highly regio- and diastereoselective rhodium-catalyzed allylic substitution of challenging alkyl-substituted secondary allylic carbonates with benzylzinc reagents, which are prepared from widely available benzyl halides. This process utilizes rhodium(III) chloride as a commercially available, high-oxidation state and bench-stable pre-catalyst to provide a rare example of a regio- and diastereoselective allylic substitution in the absence of an exogenous ligand. This reaction tolerates electronically diverse benzylzinc nucleophiles and an array of functionalized and/or challenging aliphatic allylic electrophiles. Finally, the configurational fluxionality of the rhodium-allyl intermediate is exploited to develop a novel diastereoselective process for the construction of vicinal acyclic ternary/ternary stereogenic centers, in addition to a cyclic ternary/quaternary derivative.
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Affiliation(s)
- Debasis Pal
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, ON, K7L 3N6, Canada
| | - Timothy B Wright
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, ON, K7L 3N6, Canada
| | - Ryan O'Connor
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - P Andrew Evans
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, ON, K7L 3N6, Canada.,Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan, P.R. of China
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14
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Wu L, Xu H, Gao H, Li L, Chen W, Zhou Z, Yi W. Chiral Allylic Amine Synthesis Enabled by the Enantioselective CpXRh(III)-Catalyzed Carboaminations of 1,3-Dienes. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04777] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Liexin Wu
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Huiying Xu
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Liping Li
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Weijie Chen
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- Key Laboratory of Molecular Target and Clinical Pharmacology & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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15
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Pal D, Wright TB, O'Connor R, Evans PA. Regio‐ and Diastereoselective Rhodium‐Catalyzed Allylic Substitution with Unstabilized Benzyl Nucleophiles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Debasis Pal
- Department of Chemistry Queen's University 90 Bader Lane Kingston ON K7L 3N6 Canada
| | - Timothy B. Wright
- Department of Chemistry Queen's University 90 Bader Lane Kingston ON K7L 3N6 Canada
| | - Ryan O'Connor
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - P. Andrew Evans
- Department of Chemistry Queen's University 90 Bader Lane Kingston ON K7L 3N6 Canada
- Xiangya School of Pharmaceutical Sciences Central South University Changsha 410013 Hunan P.R. of China
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16
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Kazerouni AM, McKoy QA, Blakey SB. Recent advances in oxidative allylic C-H functionalization via group IX-metal catalysis. Chem Commun (Camb) 2020; 56:13287-13300. [PMID: 33015689 DOI: 10.1039/d0cc05554a] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Allylic substitution, pioneered by the work of Tsuji and Trost, has been an invaluable tool in the synthesis of complex molecules for decades. An attractive alternative to allylic substitution is the direct functionalization of allylic C-H bonds of unactivated alkenes, thereby avoiding the need for prefunctionalization. Significant early advances in allylic C-H functionalization were made using palladium catalysis. However, Pd-catalyzed reactions are generally limited to the functionalization of terminal olefins with stabilized nucleophiles. Insights from Li, Cossy, and Tanaka demonstrated the utility of RhCpx catalysts for allylic functionalization. Since these initial reports, a number of key intermolecular Co-, Rh-, and Ir-catalyzed allylic C-H functionalization reactions have been reported, offering significant complementarity to the Pd-catalyzed reactions. Herein, we report a summary of recent advances in intermolecular allylic C-H functionalization via group IX-metal π-allyl complexes. Mechanism-driven development of new catalysts is highlighted, and the potential for future developments is discussed.
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Affiliation(s)
- Amaan M Kazerouni
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA.
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17
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Manoharan R, Jeganmohan M. Recent Advancements in Allylic C(sp
3
)–H Functionalization of Olefins Catalyzed by Rh(III) or Ir(III) Complexes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000936] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ramasamy Manoharan
- School of Chemistry and Chemical Engineering Shandong University No. 27 Shanda South Road 250100 Jinan China
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18
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Farr CMB, Kazerouni AM, Park B, Poff CD, Won J, Sharp KR, Baik MH, Blakey SB. Designing a Planar Chiral Rhodium Indenyl Catalyst for Regio- and Enantioselective Allylic C–H Amidation. J Am Chem Soc 2020; 142:13996-14004. [DOI: 10.1021/jacs.0c07305] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Caitlin M. B. Farr
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Amaan M. Kazerouni
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Bohyun Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Christopher D. Poff
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Joonghee Won
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Kimberly R. Sharp
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Simon B. Blakey
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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19
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Tanaka J, Shibata Y, Joseph A, Nogami J, Terasawa J, Yoshimura R, Tanaka K. Rhodium-Catalyzed ortho-Bromination of O-Phenyl Carbamates Accelerated by a Secondary Amide-Pendant Cyclopentadienyl Ligand. Chemistry 2020; 26:5774-5779. [PMID: 31950561 DOI: 10.1002/chem.202000253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Indexed: 12/13/2022]
Abstract
It has been established that a newly developed cyclopentadienyl rhodium(III) [CpA RhIII ] complex, bearing an acidic secondary amide moiety on the Cp ring, is able to catalyze the ortho-bromination of O-phenyl carbamates with N-bromosuccinimide (NBS) at room temperature. The presence of the acidic secondary amide moiety on the CpA ligand accelerates the bromination by the hydrogen bond between the acidic NH group of the CpA ligand and the carbonyl group of NBS.
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Affiliation(s)
- Jin Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Anton Joseph
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Juntaro Nogami
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Jyunichi Terasawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ryo Yoshimura
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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20
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Cui WJ, Wu ZJ, Gu Q, You SL. Divergent Synthesis of Tunable Cyclopentadienyl Ligands and Their Application in Rh-Catalyzed Enantioselective Synthesis of Isoindolinone. J Am Chem Soc 2020; 142:7379-7385. [DOI: 10.1021/jacs.0c02813] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Wen-Jun Cui
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zhi-Jie Wu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, Shanghai Tech University, 100 Haike Road, Shanghai 201210, China
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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21
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Mita T, Uchiyama M, Sato Y. Catalytic Intramolecular Coupling of Ketoalkenes by Allylic C(
sp
3
)−H Bond Cleavage: Synthesis of Five‐ and Six‐Membered Carbocyclic Compounds. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901533] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Tsuyoshi Mita
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD)Hokkaido University Sapporo 001-0021 Japan
| | - Masashi Uchiyama
- Faculty of Pharmaceutical SciencesHokkaido University Sapporo 060-0812 Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical SciencesHokkaido University Sapporo 060-0812 Japan
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22
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Harris RJ, Park J, Nelson TAF, Iqbal N, Salgueiro DC, Bacsa J, MacBeth CE, Baik MH, Blakey SB. The Mechanism of Rhodium-Catalyzed Allylic C-H Amination. J Am Chem Soc 2020; 142:5842-5851. [PMID: 32119537 DOI: 10.1021/jacs.0c01069] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Herein, the mechanism of catalytic allylic C-H amination reactions promoted by Cp*Rh complexes is reported. Reaction kinetics experiments, stoichiometric studies, and DFT calculations demonstrate that the allylic C-H activation to generate a Cp*Rh(π-allyl) complex is viable under mild reaction conditions. The role of external oxidants in the catalytic cycle is elucidated. Quantum mechanical calculations, stoichiometric reactions, and cyclic voltammetry experiments concomitantly support an oxidatively induced reductive elimination process of the allyl fragment with an acetate ligand proceeding through a Rh(IV) intermediate. Stoichiometric oxidation and bulk electrolysis of the proposed π-allyl intermediate are also reported to support these analyses. Lastly, evidence supporting the amination of an allylic acetate intermediate is presented. We show that Cp*Rh(III)2+ behaves as a Lewis acid catalyst to complete the allylic amination reaction.
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Affiliation(s)
- Robert J Harris
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Jiyong Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Taylor A F Nelson
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Nafees Iqbal
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Daniel C Salgueiro
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - John Bacsa
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Cora E MacBeth
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Simon B Blakey
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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23
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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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24
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Nelson TAF, Hollerbach MR, Blakey SB. Allylic C–H functionalization via group 9 π-allyl intermediates. Dalton Trans 2020; 49:13928-13935. [DOI: 10.1039/d0dt02313b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This perspective presents an analysis of how reagent choice impacts mechanism and regioselectivity in group 9-catalysed allylic C–H functionalization.
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25
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Yamada T, Shibata Y, Tanaka K. Formal Lossen Rearrangement/Alkenylation or Annulation Cascade of Heterole Carboxamides with Alkynes Catalyzed by CpRh III Complexes with Pendant Amides. Chemistry 2019; 25:16022-16031. [PMID: 31553093 DOI: 10.1002/chem.201904156] [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: 09/10/2019] [Revised: 09/24/2019] [Indexed: 01/24/2023]
Abstract
It has been established that a cyclopentadienyl (Cp) RhIII complex with two aryl groups and a pendant amide moiety catalyzes the formal Lossen rearrangement/alkenylation cascade of N-pivaloyl heterole carboxamides with internal alkynes, leading to alkenylheteroles. Interestingly, the use of sterically demanding internal alkynes afforded not the alkenylation but the [3+2] annulation products ([5,5]-fused heteroles). In these reactions, the pendant amide moiety of the CpRhIII complex may accelerate the formal Lossen rearrangement. The use of five-membered heteroles may deter reductive elimination to form strained [5,5]-fused heteroles; instead, protonation proceeds to give the alkenylation products. Bulky alkyne substituents accelerate the reductive elimination to allow the formation of the [5,5]-fused heteroles.
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Affiliation(s)
- Takayuki Yamada
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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26
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Tanaka R, Kojima M, Yoshino T, Matsunaga S. Cobalt-catalyzed Synthesis of Homoallylic Amines from Imines and Terminal Alkenes. CHEM LETT 2019. [DOI: 10.1246/cl.190378] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ryo Tanaka
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
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27
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Kazerouni AM, Nelson TAF, Chen SW, Sharp KR, Blakey SB. Regioselective Cp*Ir(III)-Catalyzed Allylic C–H Sulfamidation of Allylbenzene Derivatives. J Org Chem 2019; 84:13179-13185. [DOI: 10.1021/acs.joc.9b01816] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amaan M. Kazerouni
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Taylor A. F. Nelson
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Steven W. Chen
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Kimberly R. Sharp
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Simon B. Blakey
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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28
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Wang R, Luan Y, Ye M. Transition Metal–Catalyzed Allylic C(sp
3
)–H Functionalization
via η
3
‐Allylmetal Intermediate. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900140] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ronghua Wang
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Yuxin Luan
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Mengchun Ye
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
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29
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Honjo Y, Shibata Y, Tanaka K. Rhodium-Catalyzed [2+1+2+1] Cycloaddition of Benzoic Acids with Diynes through Decarboxylation and C≡C Triple Bond Cleavage. Chemistry 2019; 25:9427-9432. [PMID: 30945369 DOI: 10.1002/chem.201901050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 11/11/2022]
Abstract
It has been established that an electron-deficient cyclopentadienyl rhodium(III) (CpE RhIII ) complex catalyzes the oxidative and decarboxylative [2+1+2+1] cycloaddition of benzoic acids with diynes through C≡C triple bond cleavage, leading to fused naphthalenes. This cyclotrimerization is initiated by directed ortho C-H bond cleavage of a benzoic acid, and the subsequent regioselective alkyne insertion and decarboxylation produce a five-membered rhodacycle. The electron-deficient nature of the CpE RhIII complex promotes reductive elimination giving a cyclobutadiene-rhodium(I) complex rather than the second intermolecular alkyne insertion. The oxidative addition of the thus generated cyclobutadiene to rhodium(I) (formal C≡C triple bond cleavage) followed by the second intramolecular alkyne insertion and reductive elimination give the corresponding [2+1+2+1] cycloaddition product. The synthetic utility of the present [2+1+2+1] cycloaddition was demonstrated in the facile synthesis of a donor-acceptor [5]helicene and a hemi-hexabenzocoronene by a combination with the chemoselective Scholl reaction.
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Affiliation(s)
- Yusaku Honjo
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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30
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Knecht T, Mondal S, Ye JH, Das M, Glorius F. Intermolecular, Branch-Selective, and Redox-Neutral Cp*Ir III -Catalyzed Allylic C-H Amidation. Angew Chem Int Ed Engl 2019; 58:7117-7121. [PMID: 30892775 DOI: 10.1002/anie.201901733] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Indexed: 01/17/2023]
Abstract
Herein, we report the redox-neutral, intermolecular, and highly branch-selective amidation of allylic C-H bonds enabled by Cp*IrIII catalysis. A variety of readily available carboxylic acids were converted into the corresponding dioxazolones and efficiently coupled with terminal and internal olefins in high yields and selectivities. Mechanistic investigations support the formation of a nucleophilic IrIII -allyl intermediate rather than the direct insertion of an Ir-nitrenoid species into the allylic C-H bond.
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Affiliation(s)
- Tobias Knecht
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Shobhan Mondal
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Jian-Heng Ye
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Mowpriya Das
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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31
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Knecht T, Mondal S, Ye J, Das M, Glorius F. Intermolekulare, verzweigt‐selektive und redoxneutrale Cp*Ir
III
‐katalysierte allylische C‐H‐Amidierung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901733] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tobias Knecht
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Shobhan Mondal
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Jian‐Heng Ye
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Mowpriya Das
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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32
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Yoshimura R, Shibata Y, Yoshizaki S, Terasawa J, Yamada T, Tanaka K. Oxidative Annulation of Acetanilides with Alkynes Catalyzed by Cyclopentadienyl Rhodium(III) Complexes with Pendant Amides. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900139] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ryo Yoshimura
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Soichi Yoshizaki
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Jyunichi Terasawa
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Takayuki Yamada
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
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33
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Yuan WK, Zhu MH, Geng RS, Ren GY, Zhang LB, Wen LR, Li M. Construction of Benzofuran-3(2H)-one Scaffolds with a Quaternary Center via Rh/Co Relay Catalyzed C–H Functionalization/Annulation of N-Aryloxyacetamides and Propiolic Acids. Org Lett 2019; 21:1654-1658. [DOI: 10.1021/acs.orglett.9b00181] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wen-Kui Yuan
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Ming-Hui Zhu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Rui-Sen Geng
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Guang-Yi Ren
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Lin-Bao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
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34
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Li C, Li M, Zhong W, Jin Y, Li J, Wu W, Jiang H. Palladium-Catalyzed Oxidative Allylation of Sulfoxonium Ylides: Regioselective Synthesis of Conjugated Dienones. Org Lett 2019; 21:872-875. [DOI: 10.1021/acs.orglett.8b03606] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chunsheng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Meng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wentao Zhong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yangbin Jin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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35
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Lei H, Rovis T. Ir-Catalyzed Intermolecular Branch-Selective Allylic C-H Amidation of Unactivated Terminal Olefins. J Am Chem Soc 2019; 141:2268-2273. [PMID: 30715868 DOI: 10.1021/jacs.9b00237] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient method for intermolecular branch-selective allylic C-H amidation has been accomplished via Ir(III) catalysis. The reaction proceeds through initial allylic C-H activation, supported by the isolation and crystallographic characterization of an allyl-Ir(III) intermediate, followed by a subsequent oxidative amidation with readily available dioxazolones as nitrenoid precursors. A diverse range of amides are successfully installed at the branched position of terminal alkenes in good yields and regioselectivities. Importantly, the reaction allows the use of amide-derived nitrenoid precursors avoiding problematic Curtius-type rearrangements.
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Affiliation(s)
- Honghui Lei
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
| | - Tomislav Rovis
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
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36
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Ng FN, Chan CM, Li J, Sun M, Lu YS, Zhou Z, Huang B, Yu WY. [Rh III(Cp*)]-catalyzed arylfluorination of α-diazoketoesters for facile synthesis of α-aryl-α-fluoroketoesters. Org Biomol Chem 2019; 17:1191-1201. [PMID: 30648165 DOI: 10.1039/c8ob02801j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Here we describe the Cp*Rh(iii)-catalyzed cascade arylfluorination reactions of α-diazoketoesters with arylboronic acids and N-fluorobenzenesulfonimide for one-pot C(sp3)-C(aryl) and C(sp3)-F bond formation. The arylfluorination reaction can be accomplished with remarkable chemo- and regioselectivity. Our mechanistic investigation showed that the Rh-catalyzed arylfluorination of diazoacetates occurred by (1) transmetalation of arylboronic acids to form an arylrhodium(iii) complex, (2) coupling of diazomalonates with the arylrhodium(iii) complex to form carbene-rhodium, (3) migratory carbene insertion to form a diketonato-rhodium(iii) complex - probably via rearrangement of the putative σ-alkylrhodium(iii) complex, and (4) electrophilic fluorination of the diketonato-rhodium to form the α-aryl-α-fluoromalonates.
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Affiliation(s)
- Fo-Ning Ng
- State Key Laboratory for Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
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37
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Yuan T, Pi C, You C, Cui X, Du S, Wan T, Wu Y. Rapid assembly of cyclopentene spiroisoindolinones via a rhodium-catalysed redox-neutral cascade reaction. Chem Commun (Camb) 2019; 55:163-166. [DOI: 10.1039/c8cc08081j] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A rhodium-catalysed redox-neutral cascade reaction starting from benzamides and cyclopropenones for the rapid assembly of cyclopentene spiroisoindolinones has been developed.
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Affiliation(s)
- Tingting Yuan
- Department of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Chao Pi
- Department of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Chang You
- Department of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Xiuling Cui
- Department of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Sidong Du
- Department of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Ting Wan
- Department of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
| | - Yangjie Wu
- Department of Chemistry
- Henan Key Laboratory of Chemical Biology and Organic Chemistry
- Key Laboratory of Applied Chemistry of Henan Universities
- Zhengzhou University
- Zhengzhou 450052
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38
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Knecht T, Pinkert T, Dalton T, Lerchen A, Glorius F. Cp*RhIII-Catalyzed Allyl–Aryl Coupling of Olefins and Arylboron Reagents Enabled by C(sp3)–H Activation. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04677] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Tobias Knecht
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Tobias Pinkert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Toryn Dalton
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Andreas Lerchen
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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39
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Lerchen A, Knecht T, Koy M, Ernst JB, Bergander K, Daniliuc CG, Glorius F. Non‐Directed Cross‐Dehydrogenative (Hetero)arylation of Allylic C(sp
3
)−H bonds enabled by C−H Activation. Angew Chem Int Ed Engl 2018; 57:15248-15252. [DOI: 10.1002/anie.201807047] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/09/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Andreas Lerchen
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Tobias Knecht
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Maximilian Koy
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Johannes B. Ernst
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Klaus Bergander
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
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40
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Jin M, Ren W, Qian DW, Yang SD. Direct Allylic C(sp3)-H Alkylation with 2-Naphthols via Cooperative Palladium and Copper Catalysis: Construction of Cyclohexadienones with Quaternary Carbon Centers. Org Lett 2018; 20:7015-7019. [DOI: 10.1021/acs.orglett.8b02910] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ming Jin
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei Ren
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Dang-Wei Qian
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510640, P. R. China
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41
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Lerchen A, Knecht T, Koy M, Ernst JB, Bergander K, Daniliuc CG, Glorius F. Nicht‐dirigierte kreuz‐dehydrierende (Hetero)arylierung von Allyl‐C(sp
3
)‐H‐Bindungen mittels C‐H‐Aktivierung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807047] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Andreas Lerchen
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Tobias Knecht
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Maximilian Koy
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Johannes B. Ernst
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Klaus Bergander
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Constantin G. Daniliuc
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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42
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Mita T, Uchiyama M, Michigami K, Sato Y. Cobalt-catalyzed nucleophilic addition of the allylic C(sp 3)-H bond of simple alkenes to ketones. Beilstein J Org Chem 2018; 14:2012-2017. [PMID: 30202455 PMCID: PMC6122116 DOI: 10.3762/bjoc.14.176] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/18/2018] [Indexed: 01/13/2023] Open
Abstract
We herein describe a cobalt/Xantphos-catalyzed regioselective addition of simple alkenes to acetophenone derivatives, affording branched homoallylic alcohols in high yields with perfect branch selectivities. The intermediate of the reaction would be a nucleophilic allylcobalt(I) species generated via cleavage of the low reactive allylic C(sp3)–H bond of simple terminal alkenes.
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Affiliation(s)
- Tsuyoshi Mita
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Masashi Uchiyama
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kenichi Michigami
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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43
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Font M, Cendón B, Seoane A, Mascareñas JL, Gulías M. Rhodium(III)‐Catalyzed Annulation of 2‐Alkenyl Anilides with Alkynes through C−H Activation: Direct Access to 2‐Substituted Indolines. Angew Chem Int Ed Engl 2018; 57:8255-8259. [DOI: 10.1002/anie.201802830] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Marc Font
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Borja Cendón
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Andrés Seoane
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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44
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Font M, Cendón B, Seoane A, Mascareñas JL, Gulías M. Rhodium(III)‐Catalyzed Annulation of 2‐Alkenyl Anilides with Alkynes through C−H Activation: Direct Access to 2‐Substituted Indolines. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802830] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marc Font
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Borja Cendón
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Andrés Seoane
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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45
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Affiliation(s)
- Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences; Hokkaido University; Kita-12 Nishi-6, Kita-ku Sapporo 060-0812 Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences; Hokkaido University; Kita-12 Nishi-6, Kita-ku Sapporo 060-0812 Japan
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46
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Yamada T, Shibata Y, Tanaka K. Functionalized Cyclopentadienyl Ligands and Their Substituent Effects on a Rhodium(III)‐Catalyzed Oxidative [4+2] Annulation of Indole‐ and Pyrrole‐1‐Carboxamides with Alkynes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800262] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Takayuki Yamada
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
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47
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Terasawa J, Shibata Y, Kimura Y, Tanaka K. Synthesis of Functionalized (η
5
‐Indenyl)rhodium(III) Complexes and Their Application to C−H Bond Functionalization. Chem Asian J 2018; 13:505-509. [DOI: 10.1002/asia.201701716] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/16/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Jyunichi Terasawa
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
| | - Yuki Kimura
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
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48
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Affiliation(s)
- Robert W. Baker
- School of Chemistry, University of Sydney, Sydney, New South Wales 2006, Australia
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49
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Li C, Li M, Li J, Wu W, Jiang H. Palladium-catalyzed oxidative allylation of bis[(pinacolato)boryl]methane: synthesis of homoallylic boronic esters. Chem Commun (Camb) 2018; 54:66-69. [DOI: 10.1039/c7cc07788b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel palladium-catalyzed approach for constructing homoallylic boronic esters via oxidative allylic C–H functionalization of allylic hydrocarbons has been demonstrated.
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Affiliation(s)
- Chunsheng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Meng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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50
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Mita T, Hanagata S, Michigami K, Sato Y. Co-Catalyzed Direct Addition of Allylic C(sp3)–H Bonds to Ketones. Org Lett 2017; 19:5876-5879. [DOI: 10.1021/acs.orglett.7b02871] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tsuyoshi Mita
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Satoshi Hanagata
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kenichi Michigami
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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