1
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Dutta L, Mondal A, Maurya JP, Mukhopadhyay D, Ramasastry SSV. Conceptual advances in nucleophilic organophosphine-promoted transformations. Chem Commun (Camb) 2023; 59:11045-11056. [PMID: 37656437 DOI: 10.1039/d3cc03648k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Catalysis by trivalent nucleophilic organophosphines has emerged as an essential tool in organic synthesis. Several new organic transformations promoted by phosphines substantiate and complement the existing synthetic chemistry tools. Mere design of the substrate and reagent combinations has introduced new modes of reactivity patterns, which are otherwise difficult to achieve. These design considerations have led to the rapid build-up of complex molecular entities and laid a solid foundation to synthesise bioactive natural products and pharmaceuticals. This article presents an overview of some of the conceptual advances, including our contributions to nucleophilic organophosphine chemistry. The scope, limitations, mechanistic insights, and applications of these metal-free transformations are discussed elaborately.
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Affiliation(s)
- Lona Dutta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Manauli PO, S. A. S. Nagar, Punjab 140306, India.
| | - Atanu Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Manauli PO, S. A. S. Nagar, Punjab 140306, India.
| | - Jay Prakash Maurya
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Manauli PO, S. A. S. Nagar, Punjab 140306, India.
| | - Dipto Mukhopadhyay
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Manauli PO, S. A. S. Nagar, Punjab 140306, India.
| | - S S V Ramasastry
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Manauli PO, S. A. S. Nagar, Punjab 140306, India.
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2
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Wang H, Ye M. Research Advance on Enantioselective Transition Metal-Catalyzed Hydroacylation Reactions. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202207036] [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]
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3
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Seo S, Gao M, Paffenholz E, Willis MC. Sequential Catalytic Functionalization of Aryltriazenyl Aldehydes for the Synthesis of Complex Benzenes. ACS Catal 2021; 11:6091-6098. [PMID: 34306807 PMCID: PMC8291607 DOI: 10.1021/acscatal.1c01722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 04/29/2021] [Indexed: 11/29/2022]
Abstract
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We demonstrate that
aryltriazenes can promote three distinctive
types of C–H functionalization reactions, allowing the preparation
of complex benzene molecules with diverse substitution patterns. 2-Triazenylbenzaldehydes
are shown to be efficient substrates for Rh(I)-catalyzed intermolecular
alkyne hydroacylation reactions. The resulting triazene-substituted
ketone products can then undergo either a Rh(III)-catalyzed C–H
activation, or an electrophilic aromatic substitution reaction, achieving
multifunctionalization of the benzene core. Subsequent triazene derivatization
provides traceless products.
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Affiliation(s)
- Sangwon Seo
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Ming Gao
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Eva Paffenholz
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Michael C. Willis
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
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4
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Davison RT, Kuker EL, Dong VM. Teaching Aldehydes New Tricks Using Rhodium- and Cobalt-Hydride Catalysis. Acc Chem Res 2021; 54:1236-1250. [PMID: 33533586 DOI: 10.1021/acs.accounts.0c00771] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
By using transition metal catalysts, chemists have altered the "logic of chemical synthesis" by enabling the functionalization of carbon-hydrogen bonds, which have traditionally been considered inert. Within this framework, our laboratory has been fascinated by the potential for aldehyde C-H bond activation. Our approach focused on generating acyl-metal-hydrides by oxidative addition of the formyl C-H bond, which is an elementary step first validated by Tsuji in 1965. In this Account, we review our efforts to overcome limitations in hydroacylation. Initial studies resulted in new variants of hydroacylation and ultimately spurred the development of related transformations (e.g., carboacylation, cycloisomerization, and transfer hydroformylation).Sakai and co-workers demonstrated the first hydroacylation of olefins when they reported that 4-pentenals cyclized to cyclopentanones, using stoichiometric amounts of Wilkinson's catalyst. This discovery sparked significant interest in hydroacylation, especially for the enantioselective and catalytic construction of cyclopentanones. Our research focused on expanding the asymmetric variants to access medium-sized rings (e.g., seven- and eight-membered rings). In addition, we achieved selective intermolecular couplings by incorporating directing groups onto the olefin partner. Along the way, we identified Rh and Co catalysts that transform dienyl aldehydes into a variety of unique carbocycles, such as cyclopentanones, bicyclic ketones, cyclohexenyl aldehydes, and cyclobutanones. Building on the insights gained from olefin hydroacylation, we demonstrated the first highly enantioselective hydroacylation of carbonyls. For example, we demonstrated that ketoaldehydes can cyclize to form lactones with high regio- and enantioselectivity. Following these reports, we reported the first intermolecular example that occurs with high stereocontrol. Ketoamides undergo intermolecular carbonyl hydroacylation to furnish α-acyloxyamides that contain a depsipeptide linkage.Finally, we describe how the key acyl-metal-hydride species can be diverted to achieve a C-C bond-cleaving process. Transfer hydroformylation enables the preparation of olefins from aldehydes by a dehomologation mechanism. Release of ring strain in the olefin acceptor offers a driving force for the isodesmic transfer of CO and H2. Mechanistic studies suggest that the counterion serves as a proton-shuttle to enable transfer hydroformylation. Collectively, our studies showcase how transition metal catalysis can transform a common functional group, in this case aldehydes, into structurally distinct motifs. Fine-tuning the coordination sphere of an acyl-metal-hydride species can promote C-C and C-O bond-forming reactions, as well as C-C bond-cleaving processes.
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Affiliation(s)
- Ryan T. Davison
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Erin L. Kuker
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Vy M. Dong
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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5
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Whyte A, Bajohr J, Torelli A, Lautens M. Enantioselective Cobalt-Catalyzed Intermolecular Hydroacylation of 1,6-Enynes. Angew Chem Int Ed Engl 2020; 59:16409-16413. [PMID: 32524694 DOI: 10.1002/anie.202006716] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/02/2020] [Indexed: 12/20/2022]
Abstract
We report a cobalt-catalyzed hydroacylation of 1,6-enynes with exogenous aldehydes in a domino sequence to construct enantioenriched ketones. The products were obtained in good yields with excellent regio-, diastereo-, and enantioselectivity. Furthermore, the chiral products served as valuable precursors to access complex spirocyclic scaffolds with three contiguous stereocenters. The asymmetric hydroacylation process exhibited no C-H crossover and no KIE, thus indicating that the C-H bond cleavage was not involved in the turnover-limiting step.
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Affiliation(s)
- Andrew Whyte
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Jonathan Bajohr
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Alexa Torelli
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Mark Lautens
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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6
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Yang PF, Shu W. Direct Synthesis of Mono-α-arylated Ketones from Alcohols and Olefins via Ni-Catalyzed Oxidative Cross-Coupling. Org Lett 2020; 22:6203-6208. [DOI: 10.1021/acs.orglett.0c02340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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7
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Whyte A, Bajohr J, Torelli A, Lautens M. Enantioselective Cobalt‐Catalyzed Intermolecular Hydroacylation of 1,6‐Enynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Andrew Whyte
- Department of ChemistryUniversity of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Jonathan Bajohr
- Department of ChemistryUniversity of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Alexa Torelli
- Department of ChemistryUniversity of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Department of ChemistryUniversity of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
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8
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Zhou B, Wu Q, Dong Z, Xu J, Yang Z. Rhodium-Catalyzed 1,1-Hydroacylation of Thioacyl Carbenes with Alkynyl Aldehydes and Subsequent Cyclization. Org Lett 2019; 21:3594-3599. [DOI: 10.1021/acs.orglett.9b01003] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Bingnan Zhou
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Qiuyue Wu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Ziyang Dong
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Zhanhui Yang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, P.R. China
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9
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Lee SC, Guo L, Rueping M. Nickel-catalyzed exo-selective hydroacylation/Suzuki cross-coupling reaction. Chem Commun (Camb) 2019; 55:14984-14987. [DOI: 10.1039/c9cc07558e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first nickel-catalyzed intramolecular hydroacylation/Suzuki cross coupling cascade of o-allylbenzaldehydes with a broad range of phenylboronic acid neopentyl glycol esters has been developed.
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Affiliation(s)
- Shao-Chi Lee
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
| | - Lin Guo
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
| | - Magnus Rueping
- Institute of Organic Chemistry
- RWTH Aachen University
- Aachen
- Germany
- KAUST Catalysis Center (KCC)
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10
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Abstract
This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered. The diastereodivergent synthesis of alkenes from alkynes is also included. Finally, stereodivergent intramolecular and intermolecular cycloadditions and other cyclizations are also reported.
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Affiliation(s)
- Irina P Beletskaya
- Chemistry Department , M. V. Lomonosov Moscow State University , Leninskie Gory 1 , 119992 Moscow , Russia
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Miguel Yus
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
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11
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Tomberg A, Kundu S, Zhou F, Li CJ, Moitessier N. Revised Mechanism for a Ruthenium-Catalyzed Coupling of Aldehyde and Terminal Alkyne. ACS OMEGA 2018; 3:3218-3227. [PMID: 31458579 PMCID: PMC6641445 DOI: 10.1021/acsomega.7b01877] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/28/2018] [Indexed: 06/10/2023]
Abstract
Ruthenium catalysts have been found to be of great use for many kinds of reactions. Understanding the details of the catalytic cycle allows to not only rationalize experimental results but also to improve upon reactions. Herein, we present a detailed computational study of a ruthenium-catalyzed coupling between a terminal alkyne and an aldehyde. The reaction under examination facilitates novel access to olefins with the concurrent loss of a single carbon as carbon monoxide. The reaction was first developed in 2009, but the tentative mechanism initially proposed was proven to be contradictory to some experimental data obtained since then. Using a combination of computational investigations and isotope-labeling experiments, several potential mechanisms have been studied. In contrast to the [2+2] cycloaddition mechanism suggested for similar catalysts, we propose a new consensus pathway that proceeds through the formation of a ruthenium-vinylidene complex that undergoes an aldol-type reaction with the aldehyde to yield the product olefins. Computational insights into the influence of different reagents used to optimize reaction conditions and the intricacies of decarbonylation of a Ru-CO complex affecting catalyst turnover are highlighted.
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12
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Mondal A, Hazra R, Grover J, Raghu M, Ramasastry SSV. Organophosphine-Catalyzed Intramolecular Hydroacylation of Activated Alkynes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00397] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Atanu Mondal
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - Raju Hazra
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - Jagdeep Grover
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - Moluguri Raghu
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
| | - S. S. V. Ramasastry
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S A S Nagar, Manauli PO, Punjab 140 306, India
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13
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Guo R, Zhang G. Expedient Synthesis of 1,5-Diketones by Rhodium-Catalyzed Hydroacylation Enabled by C–C Bond Cleavage. J Am Chem Soc 2017; 139:12891-12894. [DOI: 10.1021/jacs.7b05427] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Rui Guo
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, University of
Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai 200032, P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, University of
Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai 200032, P. R. China
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14
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Yasukawa T, Kobayashi S. Lewis Acid-assisted Dirhodium(II)-catalyzed Ketone Hydroacylation. CHEM LETT 2017. [DOI: 10.1246/cl.160862] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tomohiro Yasukawa
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033
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15
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Nagamoto M, Ebe Y, Nishimura T. Iridium-Catalyzed Asymmetric Reactions Realizing High Atom Efficiency. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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16
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Xiao LJ, Fu XN, Zhou MJ, Xie JH, Wang LX, Xu XF, Zhou QL. Nickel-Catalyzed Hydroacylation of Styrenes with Simple Aldehydes: Reaction Development and Mechanistic Insights. J Am Chem Soc 2016; 138:2957-60. [DOI: 10.1021/jacs.6b00024] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | | | - Jian-Hua Xie
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | | | | | - Qi-Lin Zhou
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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17
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Li F, Zhao C, Wang J. N-Heterocyclic carbene catalyzed dehydrogenative coupling of enals: synthesis of monobactams. Org Chem Front 2016. [DOI: 10.1039/c5qo00372e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novel NHC-catalyzed dehydrogenative coupling of enals is described to generate a wide range of monobactams.
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Affiliation(s)
- Fangyi Li
- Department of Pharmacology and Pharmaceutical Sciences
- School of Medicine
- Tsinghua University
- Beijing
- China
| | - Changgui Zhao
- Department of Pharmacology and Pharmaceutical Sciences
- School of Medicine
- Tsinghua University
- Beijing
- China
| | - Jian Wang
- Department of Pharmacology and Pharmaceutical Sciences
- School of Medicine
- Tsinghua University
- Beijing
- China
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18
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Ghosh A, Johnson KF, Vickerman KL, Walker JA, Stanley LM. Recent advances in transition metal-catalysed hydroacylation of alkenes and alkynes. Org Chem Front 2016. [DOI: 10.1039/c6qo00023a] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This highlight presents advances in transition metal-catalysed alkene and alkyne hydroacylation over the past three years.
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Affiliation(s)
- Avipsa Ghosh
- Department of Chemistry
- Iowa State University
- Ames
- USA
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19
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Kou KGM, Longobardi LE, Dong VM. Rhodium(I)-Catalyzed Intermolecular Hydroacylation of α-Keto Amides and Isatins with Non-Chelating Aldehydes. Adv Synth Catal 2015; 357:2233-2237. [PMID: 27134619 DOI: 10.1002/adsc.201500313] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The application of the bidentate, electron-rich bisphosphine ligand, 1,3-bis(dicyclohexyl)phosphine-propane (dcpp), in rhodium(I)-catalyzed intermolecular ketone hydroacylation is herein described. Isatins and α-keto amides are shown to undergo hydroacylation with a variety of non-chelating linear and branched aliphatic aldehydes. Also reported is the synthesis of new bidentate chiral phosphine ligands, and their application in hydroacylation is discussed.
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Affiliation(s)
- Kevin G M Kou
- University of California, Irvine, Department of Chemistry, Natural Sciences I, Irvine, California 92697, United States, ; University of Toronto, Department of Chemistry, 80 St. George St., Toronto, ON, Canada M5S 3H6
| | - Lauren E Longobardi
- University of Toronto, Department of Chemistry, 80 St. George St., Toronto, ON, Canada M5S 3H6
| | - Vy M Dong
- University of California, Irvine, Department of Chemistry, Natural Sciences I, Irvine, California 92697, United States
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20
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Oonishi Y. Development of Novel Cyclizations via Rhodacycle Intermediate and Its Application to Synthetic Organic Chemistry. Chem Pharm Bull (Tokyo) 2015; 63:397-407. [PMID: 26027463 DOI: 10.1248/cpb.c15-00135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Novel Rh(I)-catalyzed cyclizations through a different type of rhodacycle intermediate which is formed by hydroacylation of 4,6-dienal or oxidative addition of diene and alkene are described. Hydroacylation of 4,6-dienal afforded various 7-membered rings in good to high yields, while cycloisomerization of diene and alkene provided 5- or 6-membered rings in good yields. On the basis of these studies, we have also succeeded in developing the sequential reaction of hydroacylation followed by cycloisomerization to produce bicyclic compounds in a stereoselective manner and thus this reaction was expanded to the synthesis of epiglobulol. Furthermore, both Rh(I)-catalyzed hydroacylation and cycloisomerization using ionic liquid (IL) as a solvent were investigated and it was found that the IL recovered after the reaction, which contains the Rh(I) catalyst, could be recycled several times without loss of catalytic activity.
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21
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Murphy SK, Dong VM. Enantioselective hydroacylation of olefins with rhodium catalysts. Chem Commun (Camb) 2015; 50:13645-9. [PMID: 25277153 DOI: 10.1039/c4cc02276a] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Over thirty years ago, James and Young reported the first enantioselective olefin hydroacylation by using rhodium catalysts. This viewpoint highlights the advances in this area, including 4-pentenal cyclisations, medium-ring syntheses, and intermolecular variants.
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Affiliation(s)
- Stephen K Murphy
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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22
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Yang L, Huang H. Transition-metal-catalyzed direct addition of unactivated C-H bonds to polar unsaturated bonds. Chem Rev 2015; 115:3468-517. [PMID: 25749375 DOI: 10.1021/cr500610p] [Citation(s) in RCA: 611] [Impact Index Per Article: 67.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lei Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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23
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Nagamoto M, Nishimura T. Stereoselective hydroacylation of bicyclic alkenes with 2-hydroxybenzaldehydes catalyzed by hydroxoiridium/diene complexes. Chem Commun (Camb) 2015; 51:13791-4. [DOI: 10.1039/c5cc05432j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hydroxoiridium complex coordinated with 1,5-cyclooctadiene efficiently catalyzed the hydroacylation of bicyclic alkenes with 2-hydroxybenzaldehyde and its derivatives in high yields with high stereoselectivity.
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Affiliation(s)
- Midori Nagamoto
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
| | - Takahiro Nishimura
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
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24
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Kou KM, Le DN, Dong VM. Rh(I)-catalyzed intermolecular hydroacylation: enantioselective cross-coupling of aldehydes and ketoamides. J Am Chem Soc 2014; 136:9471-6. [PMID: 24937681 PMCID: PMC4091274 DOI: 10.1021/ja504296x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Indexed: 01/02/2023]
Abstract
Under Rh(I) catalysis, α-ketoamides undergo intermolecular hydroacylation with aliphatic aldehydes. A newly designed Josiphos ligand enables access to α-acyloxyamides with high atom-economy and enantioselectivity. On the basis of mechanistic and kinetic studies, we propose a pathway in which rhodium plays a dual role in activating the aldehyde for cross-coupling. A stereochemical model is provided to rationalize the sense of enantioinduction observed.
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Affiliation(s)
- Kevin
G. M. Kou
- Department
of Chemistry, University of California, Irvine, California 92697, United States
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Diane N. Le
- Department
of Chemistry, University of California, Irvine, California 92697, United States
| | - Vy M. Dong
- Department
of Chemistry, University of California, Irvine, California 92697, United States
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25
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Zhang T, Qi Z, Zhang X, Wu L, Li X. RhIII-Catalyzed Hydroacylation Reactions betweenN-Sulfonyl 2-Aminobenzaldehydes and Olefins. Chemistry 2014; 20:3283-7. [DOI: 10.1002/chem.201400022] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Indexed: 12/13/2022]
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26
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Okamoto R, Tanaka K. Rhodium-Catalyzed Olefin Isomerization/Allyl Claisen Rearrangement/Intramolecular Hydroacylation Cascade. Org Lett 2013; 15:2112-5. [DOI: 10.1021/ol400574s] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryuichi Okamoto
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan, and JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Ken Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan, and JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
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27
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Ma C, Jia ZJ, Liu JX, Zhou QQ, Dong L, Chen YC. A Concise Assembly of Electron-Deficient 2,4-Dienes and 2,4-Dienals: Regio- and Stereoselectiveexo-Diels-Alder and Redox Reactions through Sequential Amine and Carbene Catalysis. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201208349] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Ma C, Jia ZJ, Liu JX, Zhou QQ, Dong L, Chen YC. A Concise Assembly of Electron-Deficient 2,4-Dienes and 2,4-Dienals: Regio- and Stereoselectiveexo-Diels-Alder and Redox Reactions through Sequential Amine and Carbene Catalysis. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201208349] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Wang Z, Reinus BJ, Dong G. Catalytic Intermolecular C-Alkylation of 1,2-Diketones with Simple Olefins: A Recyclable Directing Group Strategy. J Am Chem Soc 2012; 134:13954-7. [DOI: 10.1021/ja306123m] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Zhiqian Wang
- Department
of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712,
United States
| | - Brandon J. Reinus
- Department
of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712,
United States
| | - Guangbin Dong
- Department
of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712,
United States
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30
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Beletskiy EV, Sudheer C, Douglas CJ. Cooperative catalysis approach to intramolecular hydroacylation. J Org Chem 2012; 77:5884-93. [PMID: 22775578 DOI: 10.1021/jo300779q] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Prior examples of hydroacylation to form six- and seven-membered ring ketones require either embedded chelating groups or other substrate design strategies to circumvent competitive aldehyde decarbonylation. A cooperative catalysis strategy enabled intramolecular hydroacylation of disubstituted alkenes to form seven- and six-membered rings without requiring substrate-embedded chelating groups.
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Affiliation(s)
- Evgeny V Beletskiy
- Department of Chemistry, University of Minnesota-Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, USA
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31
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Chaplin AB, Hooper JF, Weller AS, Willis MC. Intermolecular hydroacylation: high activity rhodium catalysts containing small-bite-angle diphosphine ligands. J Am Chem Soc 2012; 134:4885-97. [PMID: 22324763 DOI: 10.1021/ja211649a] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Readily prepared and bench-stable rhodium complexes containing methylene bridged diphosphine ligands, viz. [Rh(C(6)H(5)F)(R(2)PCH(2)PR'(2))][BAr(F)(4)] (R, R' = (t)Bu or Cy; Ar(F) = C(6)H(3)-3,5-(CF(3))(2)), are shown to be practical and very efficient precatalysts for the intermolecular hydroacylation of a wide variety of unactivated alkenes and alkynes with β-S-substituted aldehydes. Intermediate acyl hydride complexes [Rh((t)Bu(2)PCH(2)P(t)Bu(2))H{κ(2)(S,C)-SMe(C(6)H(4)CO)}(L)](+) (L = acetone, MeCN, [NCCH(2)BF(3)](-)) and the decarbonylation product [Rh((t)Bu(2)PCH(2)P(t)Bu(2))(CO)(SMePh)](+) have been characterized in solution and by X-ray crystallography from stoichiometric reactions employing 2-(methylthio)benzaldehdye. Analogous complexes with the phosphine 2-(diphenylphosphino)benzaldehyde are also reported. Studies indicate that through judicious choice of solvent and catalyst/substrate concentration, both decarbonylation and productive hydroacylation can be tuned to such an extent that very low catalyst loadings (0.1 mol %) and turnover frequencies of greater than 300 h(-1) can be achieved. The mechanism of catalysis has been further probed by KIE and deuterium labeling experiments. Combined with the stoichiometric studies, a mechanism is proposed in which both oxidative addition of the aldehyde to give an acyl hydride and insertion of the hydride into the alkene are reversible, with the latter occurring to give both linear and branched alkyl intermediates, although reductive elimination for the linear isomer is suggested to have a considerably lower barrier.
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Affiliation(s)
- Adrian B Chaplin
- Department of Chemistry, Inorganic Chemistry Laboratories, University of Oxford, South Parks Road, Oxford OX1 3QR, UK
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32
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Yang L, Huang H. Asymmetric catalytic carbon–carbon coupling reactions via C–H bond activation. Catal Sci Technol 2012. [DOI: 10.1039/c2cy20111a] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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33
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Leung JC, Krische MJ. Catalytic intermolecular hydroacylation of C–C π-bonds in the absence of chelation assistance. Chem Sci 2012. [DOI: 10.1039/c2sc20350b] [Citation(s) in RCA: 204] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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34
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Watson IDG, Toste FD. Catalytic enantioselective carbon-carbon bond formation using cycloisomerization reactions. Chem Sci 2012. [DOI: 10.1039/c2sc20542d] [Citation(s) in RCA: 177] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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35
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Hoffman TJ, Carreira EM. Catalytic Asymmetric Intramolecular Hydroacylation with Rhodium/Phosphoramidite-Alkene Ligand Complexes. Angew Chem Int Ed Engl 2011; 50:10670-4. [PMID: 21928464 DOI: 10.1002/anie.201104595] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Indexed: 11/07/2022]
Affiliation(s)
- Thomas J Hoffman
- Laboratorium für Organische Chemie, ETH Zürich, 8093 Zürich, Switzerland
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36
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Hoffman TJ, Carreira EM. Catalytic Asymmetric Intramolecular Hydroacylation with Rhodium/Phosphoramidite-Alkene Ligand Complexes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104595] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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37
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Oonishi Y, Hosotani A, Sato Y. Rh(I)-Catalyzed Formal [6 + 2] Cycloaddition of 4-Allenals with Alkynes or Alkenes in a Tether. J Am Chem Soc 2011; 133:10386-9. [DOI: 10.1021/ja203824v] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yoshihiro Oonishi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Akihito Hosotani
- 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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38
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Sreenivasulu M, Arun Kumar K, Sateesh Reddy K, Siva Kumar K, Rajender Kumar P, Chandrasekhar K, Pal M. 1,3-Bis(2,4,6-trimethylphenyl)imidazolium chloride in combination with triethylamine: an improved catalytic system for hydroacylation/reduction of activated ketones. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.12.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Murai S. Transition metal catalyzed manipulation of non-polar carbon-hydrogen bonds for synthetic purpose. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2011; 87:230-241. [PMID: 21558759 PMCID: PMC3165906 DOI: 10.2183/pjab.87.230] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Accepted: 02/25/2011] [Indexed: 05/30/2023]
Abstract
The direct addition of ortho C-H bonds in various aromatic compounds such as ketones, esters, imines, imidates, nitriles, and aldehydes to olefins and acetylenes can be achieved with the aid of transition metal catalysts. The ruthenium catalyzed reaction is usually highly efficient and useful as a general synthetic method. The coordination to the metal center by a heteroatom in a directing group such as carbonyl and imino groups in aromatic compounds is the key step in this process. Mechanistically, the reductive elimination to form a C-C bond is the rate-determining step, while the C-H bond cleavage step is not. (Communicated by Ryoji NoyorI, M.J.A.).
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Affiliation(s)
- Shinji Murai
- Nara Institute of Science and Technology, Takayama, Ikoma, Nara, Japan.
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40
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Crépin D, Tugny C, Murray JH, Aïssa C. Facile and chemoselective rhodium-catalysed intramolecular hydroacylation of α,α-disubstituted 4-alkylidenecyclopropanals. Chem Commun (Camb) 2011; 47:10957-9. [DOI: 10.1039/c1cc14626b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Imai M, Suemune H, Tanaka M. Rh-catalyzed Hydroacylation Reaction: Development from Intramolecular Reaction into Intermolecular Reaction. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Crépin D, Dawick J, Aïssa C. Combined rhodium-catalyzed carbon-hydrogen activation and beta-carbon elimination to access eight-membered rings. Angew Chem Int Ed Engl 2010; 49:620-3. [PMID: 20013973 DOI: 10.1002/anie.200904527] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Damien Crépin
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, England
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43
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Crépin D, Dawick J, Aïssa C. Combined Rhodium-Catalyzed CarbonâHydrogen Activation and β-Carbon Elimination to access Eight-Membered Rings. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200904527] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Affiliation(s)
- Michael C. Willis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, U.K
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45
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Tanaka K, Fu GC. A novel rhodium-catalyzed reduction-oxidation process: reaction of 4-alkynals with phenol to provide cis-4-alkenoates. Angew Chem Int Ed Engl 2009; 41:1607-9. [PMID: 19750681 DOI: 10.1002/1521-3773(20020503)41:9<1607::aid-anie1607>3.0.co;2-q] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ken Tanaka
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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46
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Taniguchi H, Ohmura T, Suginome M. Nickel-Catalyzed Ring-Opening Hydroacylation of Methylenecyclopropanes: Synthesis of γ,δ-Unsaturated Ketones from Aldehydes. J Am Chem Soc 2009; 131:11298-9. [DOI: 10.1021/ja9046894] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hiroki Taniguchi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Toshimichi Ohmura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
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47
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Intermolecular rhodium catalyzed hydroacylation of allenes: the regioselective synthesis of β,γ-unsaturated ketones. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.054] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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48
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Marcé P, Godard C, Feliz M, Yáñez X, Bo C, Castillón S. Rhodium-Catalyzed Intermolecular Hydroiminoacylation of Alkenes: Comparison of Neutral and Cationic Catalytic Systems. Organometallics 2009. [DOI: 10.1021/om800827r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Patricia Marcé
- Departament de Química Analítica i Química Orgànica and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelí Domingo s/n, 43007 Tarragona, Spain, Institute of Chemical Research of Catalonia (ICIQ), C/Països Catalans 16, 43007 Tarragona, Spain, and Instituto de Investigación en Producción Verde (IPV), Universidad de Pamplona-Sede Villa del Rosario, Cúcuta, Colombia
| | - Cyril Godard
- Departament de Química Analítica i Química Orgànica and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelí Domingo s/n, 43007 Tarragona, Spain, Institute of Chemical Research of Catalonia (ICIQ), C/Països Catalans 16, 43007 Tarragona, Spain, and Instituto de Investigación en Producción Verde (IPV), Universidad de Pamplona-Sede Villa del Rosario, Cúcuta, Colombia
| | - Marta Feliz
- Departament de Química Analítica i Química Orgànica and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelí Domingo s/n, 43007 Tarragona, Spain, Institute of Chemical Research of Catalonia (ICIQ), C/Països Catalans 16, 43007 Tarragona, Spain, and Instituto de Investigación en Producción Verde (IPV), Universidad de Pamplona-Sede Villa del Rosario, Cúcuta, Colombia
| | - Xiomara Yáñez
- Departament de Química Analítica i Química Orgànica and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelí Domingo s/n, 43007 Tarragona, Spain, Institute of Chemical Research of Catalonia (ICIQ), C/Països Catalans 16, 43007 Tarragona, Spain, and Instituto de Investigación en Producción Verde (IPV), Universidad de Pamplona-Sede Villa del Rosario, Cúcuta, Colombia
| | - Carles Bo
- Departament de Química Analítica i Química Orgànica and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelí Domingo s/n, 43007 Tarragona, Spain, Institute of Chemical Research of Catalonia (ICIQ), C/Països Catalans 16, 43007 Tarragona, Spain, and Instituto de Investigación en Producción Verde (IPV), Universidad de Pamplona-Sede Villa del Rosario, Cúcuta, Colombia
| | - Sergio Castillón
- Departament de Química Analítica i Química Orgànica and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelí Domingo s/n, 43007 Tarragona, Spain, Institute of Chemical Research of Catalonia (ICIQ), C/Països Catalans 16, 43007 Tarragona, Spain, and Instituto de Investigación en Producción Verde (IPV), Universidad de Pamplona-Sede Villa del Rosario, Cúcuta, Colombia
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49
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Inui Y, Tanaka M, Imai M, Tanaka K, Suemune H. Asymmetric Rh-Catalyzed Intermolecular Hydroacylation of 1,5-Hexadiene with Salicylaldehyde. Chem Pharm Bull (Tokyo) 2009; 57:1158-60. [DOI: 10.1248/cpb.57.1158] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yasuhiro Inui
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Masakazu Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University
- Graduate School of Biomedical Sciences, Nagasaki University
| | | | - Keitaro Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Hiroshi Suemune
- Graduate School of Pharmaceutical Sciences, Kyushu University
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50
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Moxham GL, Randell-Sly H, Brayshaw SK, Weller AS, Willis MC. Intermolecular alkene and alkyne hydroacylation with beta-S-substituted aldehydes: mechanistic insight into the role of a hemilabile P-O-P ligand. Chemistry 2008; 14:8383-97. [PMID: 18666296 DOI: 10.1002/chem.200800738] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A straightforward to assemble catalytic system for the intermolecular hydroacylation reaction of beta-S-substituted aldehydes with activated and unactivated alkenes and alkynes is reported. These catalysts promote the hydroacylation reaction between beta-S-substituted aldehydes and challenging substrates, such as internal alkynes and 1-octene. The catalysts are based upon [Rh(cod)(DPEphos)][ClO(4)] (DPEphos=bis(2-diphenylphosphinophenyl)ether, cod=cyclooctadiene) and were designed to make use of the hemilabile capabilities of the DPEphos ligand to stabilise key acyl-hydrido intermediates against reductive decarbonylation, which results in catalyst death. Studies on the stoichiometric addition of aldehyde (either ortho-HCOCH(2)CH(2)SMe or ortho-HCOC(6)H(4)SMe) and methylacrylate to precursor acetone complexes [Rh(acetone)(2)(DPEphos)][X] [X=closo-CB(11)H(6)Cl(6) or [BAr(F) (4)] (Ar(F)=3,5-(CF(3))(2)C(6)H(3))] reveal the role of the hemilabile DPEphos ligand. The crystal structure of [Rh(acetone)(2)(DPEphos)][X] shows a cis-coordinated diphosphine ligand with the oxygen atom of the DPEphos distal from the rhodium. Addition of aldehyde forms the acyl hydride complexes [Rh(DPEphos)(COCH(2)CH(2)SMe)H][X] or [Rh(DPEphos)(COC(6)H(4)SMe)H][X], which have a trans-spanning DPEphos ligand and a coordinated ether group. Compared to analogous complexes prepared with dppe (dppe=1,2-bis(diphenylphosphino)ethane), these DPEphos complexes show significantly increased resistance towards reductive decarbonylation. The crystal structure of the reductive decarbonylation product [Rh(CO)(DPEphos)(EtSMe)][closo-CB(11)H(6)I(6)] is reported. Addition of alkene (methylacrylate) to the acyl-hydrido complexes forms the final complexes [Rh(DPEphos)(eta(1)-MeSC(2)H(4)-eta(1)-COC(2)H(4)CO(2)Me)][X] and [Rh(DPEphos)(eta(1)-MeSC(6)H(4)-eta(1)-COC(2)H(4)CO(2)Me)][X], which have been identified spectroscopically and by ESIMS/MS. Intermediate species in this transformation have been observed and tentatively characterised as the alkyl-acyl complexes [Rh(CH(2)CH(2)CO(2)Me)(COC(2)H(4)SMe)(DPEphos)][X] and [Rh(CH(2)CH(2)CO(2)Me)(COC(6)H(4)SMe)(DPEphos)][X]. In these complexes, the DPEphos ligand is now cis chelating. A model for the (unobserved) transient alkene complex that would result from addition of alkene to the acyl-hydrido complexes comes from formation of the MeCN adducts [Rh(DPEphos)(MeSC(2)H(4)CO)H(MeCN)][X] and [Rh(DPEphos)(MeSC(6)H(4)CO)H(MeCN)][X]. Changing the ligand from DPEphos to one with a CH(2) linkage, [Ph(2)P(C(6)H(4))](2)CH(2), gave only decomposition on addition of aldehyde to the acetone precursor, which demonstrated the importance of the hemiabile ether group in DPEphos. With [Ph(2)P(C(6)H(4))](2)S, the sulfur atom has the opposite effect and binds too strongly to the metal centre to allow access to productive acetone intermediates.
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Affiliation(s)
- Gemma L Moxham
- Department of Chemistry, University of Bath, Bath, BA2 7AY, UK
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