1
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Cook A, Newman SG. Alcohols as Substrates in Transition-Metal-Catalyzed Arylation, Alkylation, and Related Reactions. Chem Rev 2024; 124:6078-6144. [PMID: 38630862 DOI: 10.1021/acs.chemrev.4c00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Alcohols are abundant and attractive feedstock molecules for organic synthesis. Many methods for their functionalization require them to first be converted into a more activated derivative, while recent years have seen a vast increase in the number of complexity-building transformations that directly harness unprotected alcohols. This Review discusses how transition metal catalysis can be used toward this goal. These transformations are broadly classified into three categories. Deoxygenative functionalizations, representing derivatization of the C-O bond, enable the alcohol to act as a leaving group toward the formation of new C-C bonds. Etherifications, characterized by derivatization of the O-H bond, represent classical reactivity that has been modernized to include mild reaction conditions, diverse reaction partners, and high selectivities. Lastly, chain functionalization reactions are described, wherein the alcohol group acts as a mediator in formal C-H functionalization reactions of the alkyl backbone. Each of these three classes of transformation will be discussed in context of intermolecular arylation, alkylation, and related reactions, illustrating how catalysis can enable alcohols to be directly harnessed for organic synthesis.
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Affiliation(s)
- Adam Cook
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephen G Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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2
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Bonfield H, Edge CM, Reid M, Kennedy AR, Pascoe DD, Lindsay DM, Valette D. Synthesis of 2,6- trans-Tetrahydropyrans Using a Palladium-Catalyzed Oxidative Heck Redox-Relay Strategy. Org Lett 2024; 26:2857-2861. [PMID: 38198695 PMCID: PMC11020158 DOI: 10.1021/acs.orglett.3c03866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/12/2024]
Abstract
The C-aryl-tetrahydropyran motif is prevalent in nature in a number of natural products with biological activity; however, this challenging architecture still requires novel synthetic approaches. We demonstrate the application of a stereoselective Heck redox-relay strategy for the synthesis of functionalized 2,6-trans-tetrahydropyrans in excellent selectivity in a single step from an enantiopure dihydropyranyl alcohol, proceeding through a novel exo-cyclic migration. The strategy has also been applied to the total synthesis of a trans-epimer of the natural product centrolobine in excellent yield and stereoselectivity.
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Affiliation(s)
- Holly
E. Bonfield
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Glasgow G1 1XL, U.K.
- Drug
Substance Development, GSK, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K.
| | - Colin M. Edge
- Drug
Substance Development, GSK, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K.
| | - Marc Reid
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Glasgow G1 1XL, U.K.
| | - Alan R. Kennedy
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Glasgow G1 1XL, U.K.
| | - David D. Pascoe
- Drug
Substance Development, GSK, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K.
| | - David M. Lindsay
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Glasgow G1 1XL, U.K.
| | - Damien Valette
- Drug
Substance Development, GSK, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K.
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3
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Wang Y, Ma B, Mao Y, Wang Z, Peng J, Chen C, Li Z. Titanium-catalyzed highly stereoselective anti-Markovnikov intermolecular hydroalkoxylation of alkynes to prepare Z-enol ethers. Org Biomol Chem 2023; 21:9422-9427. [PMID: 37987684 DOI: 10.1039/d3ob01514a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Enol ethers are essential synthetic frameworks and widely applied in organic synthesis; however, high regio- and stereo-selective access to enol ethers remains challenging. Herein, we report a titanium-catalyzed stereospecific anti-Markovnikov hydroalkoxylation reaction of alkynes for the synthesis of Z-enol ethers with excellent functional group tolerance and yields. Mechanistic studies showed that the titanium coordinates with the alkyne and then an oxygen anion attacks the π-bond of the alkyne from the backside to provide a trans-oxygen metallation intermediate, which accounts for the high Z-stereoselectivity. Furthermore, Z-enol ethers could be applied as a kind of synthon for late-stage transformations and gram-scale synthesis, which demonstrates their potential value in organic synthesis.
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Affiliation(s)
- Yang Wang
- Chemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, China.
| | - Biao Ma
- Chemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, China.
| | - Yingning Mao
- Chemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, China.
| | - Zhihui Wang
- Chemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, China.
| | - Jinsong Peng
- Chemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, China.
| | - Chunxia Chen
- Chemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, China.
| | - Zhanyu Li
- Chemical Engineering and Resource Utilization, College of Chemistry, Northeast Forestry University, Harbin 150040, China.
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4
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Wang Q, Jung H, Kim D, Chang S. Iridium-Catalyzed Migratory Terminal C(sp 3)-H Amidation of Heteroatom-Substituted Internal Alkenes via Olefin Chain Walking. J Am Chem Soc 2023. [PMID: 37906814 DOI: 10.1021/jacs.3c09679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Hydroamination facilitated by metal hydride catalysis is an appealing synthetic approach to access valuable nitrogen-containing compounds from readily available unsaturated hydrocarbons. While high regioselectivity can be achieved usually for substrates bearing polar chelation groups, the reaction involving simple alkenes frequently provides nonselective outcomes. Herein, we report an iridium-catalyzed highly regioselective terminal C(sp3)-H amidation of internal alkenes utilizing dioxazolones as an amino source via olefin chain walking. Most notably, this mechanistic motif of double bond migration to the terminal position operates not only with dialkyl-substituted simple alkenes including styrenes but also with heteroatom-substituted olefins such as enol ethers, vinyl silanes, and vinyl borons, thus representing the first example of the terminal methyl amidation of the latter type of alkenes through a nondissociative chain walking process.
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Affiliation(s)
- Qing Wang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Hoimin Jung
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
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5
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Simlandy AK, Alturaifi TM, Nguyen JM, Oxtoby LJ, Wong QN, Chen JS, Liu P, Engle KM. Enantioselective Hydroalkenylation and Hydroalkynylation of Alkenes Enabled by a Transient Directing Group: Catalyst Generality through Rigidification. Angew Chem Int Ed Engl 2023; 62:e202304013. [PMID: 37141510 PMCID: PMC10524838 DOI: 10.1002/anie.202304013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/04/2023] [Accepted: 05/04/2023] [Indexed: 05/06/2023]
Abstract
The catalytic enantioselective synthesis of α-chiral alkenes and alkynes represents a powerful strategy for rapid generation of molecular complexity. Herein, we report a transient directing group (TDG) strategy to facilitate site-selective palladium-catalyzed reductive Heck-type hydroalkenylation and hydroalkynylation of alkenylaldehyes using alkenyl and alkynyl bromides, respectively, allowing for construction of a stereocenter at the δ-position with respect to the aldehyde. Computational studies reveal the dual beneficial roles of rigid TDGs, such as L-tert-leucine, in promoting TDG binding and inducing high levels of enantioselectivity in alkene insertion with a variety of migrating groups.
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Affiliation(s)
- Amit Kumar Simlandy
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, CA 92037, La Jolla, USA
| | - Turki M Alturaifi
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, PA 15260, Pittsburgh, USA
| | - Johny M Nguyen
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, CA 92037, La Jolla, USA
| | - Lucas J Oxtoby
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, CA 92037, La Jolla, USA
| | - Quynh Nguyen Wong
- Automated Synthesis Facility, The Scripps Research Institute, 10550 North Torrey Pines Road, CA 92037, La Jolla, USA
| | - Jason S Chen
- Automated Synthesis Facility, The Scripps Research Institute, 10550 North Torrey Pines Road, CA 92037, La Jolla, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, PA 15260, Pittsburgh, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, CA 92037, La Jolla, USA
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6
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Duhamel T, Scaringi S, Leforestier B, Poblador-Bahamonde AI, Mazet C. Assisted Tandem Pd Catalysis Enables Regiodivergent Heck Arylation of Transiently Generated Substituted Enol Ethers. JACS AU 2023; 3:261-274. [PMID: 36711081 PMCID: PMC9875267 DOI: 10.1021/jacsau.2c00645] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 06/18/2023]
Abstract
Two complementary regiodivergent Pd-catalyzed assisted tandem [isomerization/Heck arylation] reactions are reported. They provide access to a broad array of acyclic trisubstituted vinyl ethers starting from readily available alkenyl ethers. In both cases, the isomerization is conducted with a [Pd-H] precatalyst supported by tris-tert-butyl phosphine ligands. When the catalyst is modified by the addition of a chelating bisphosphine ligand (dppp), an organic base (Cy2NMe), sodium acetate, and aryl triflates are used as electrophiles, the α-arylation pathway is promoted preferentially. The β-arylation pathway is favored for electron-deficient and electron-neutral aryl halides when the catalyst is simply modified by the addition of an excess of an organic base (Et3N) after completion of the isomerization reaction. Electron-rich aryl halides lead to reduced levels of regiocontrol. The moderate stereoselectivity obtained are proposed to reflect the absence of stereocontrol in the isomerization step. Computational analyses suggest that migratory insertion is selectivity-determining for both the arylations. For the β-selective arylation, an energy decomposition analysis underscored that electronic factors favor α-regioselectivity and steric effects favor β-regioselectivity. Preliminary investigations show that high levels of stereoselectivity can be achieved for the α-selective arylation by ligand control. Complementarily, reaction conditions for postcatalytic stereo-correction have also been identified for each catalytic system.
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7
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Zhang Q, Wang S, Yin J, Xiong T, Zhang Q. Remote Site-Selective Asymmetric Protoboration of Unactivated Alkenes Enabled by Bimetallic Relay Catalysis. Angew Chem Int Ed Engl 2022; 61:e202202713. [PMID: 35297558 DOI: 10.1002/anie.202202713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Indexed: 12/14/2022]
Abstract
A remote C(sp3 )-H bond asymmetric borylation of unactivated alkenes was achieved by bimetallic relay catalysis. The reaction proceeded through reversible and consecutive β-H elimination/olefin insertion promoted by CoH species generated in situ, followed by copper-catalyzed asymmetric protoboration. The use of this synergistic Co/Cu catalysis protocol allowed the enantioselective protoboration of various unactivated terminal alkenes and internal alkenes, as well as an unrefined mixture of olefin isomers, at the distal less-reactive β-position to a functional group, leading to chiral organoboronates.
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Affiliation(s)
- Qiao Zhang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Simin Wang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jianjun Yin
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Tao Xiong
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Qian Zhang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Lu, Shanghai, 200032, China
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8
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Xi Y, Huang W, Wang C, Ding H, Xia T, Wu L, Fang K, Qu J, Chen Y. Catalytic Asymmetric Diarylation of Internal Acyclic Styrenes and Enamides. J Am Chem Soc 2022; 144:8389-8398. [PMID: 35482430 DOI: 10.1021/jacs.2c03411] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Enantioselective transformations of olefins are among the most important strategies for the asymmetric synthesis of organic compounds. Chemo-, diastereo-, and stereoselective control of reactions with internal acyclic alkenes for the construction of functionalized acyclic alkanes still remain a persistent challenge. Here, we report a palladium-catalyzed asymmetric regiodivergent Heck-type diarylation of internal acyclic alkenes. The 1,2-diarylation of two accessible acyclic alkenes, cinnamyl carbamates and enamides with diazonium salts and aromatic boronic acids, furnishes products containing vicinal stereogenic centers via the stereospecific formation of carbonyl coordination-assisted transient palladacycles. Moreover, the asymmetric migratory diarylation of enamides enables the formation of incontiguous stereocenters by an interrupted diastereoselective 1,3-chain-walking process. This protocol streamlines access to highly functionalized multisubstituted enantioenriched carbamates and amine derivatives which are embedded in the key biologically active motifs.
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Affiliation(s)
- Yang Xi
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wenyi Huang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chenchen Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Haojie Ding
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Tingting Xia
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Licheng Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Ke Fang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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9
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Zhang M, Ji Y, Zhang C. Transition Metal Catalyzed Enantioselective Migratory Functionalization Reactions of Alkenes through Chain‐walking. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Min Zhang
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University Weijin Rd. 92 Tianjin 300072 China
| | - Yuqi Ji
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University Weijin Rd. 92 Tianjin 300072 China
| | - Chun Zhang
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University Weijin Rd. 92 Tianjin 300072 China
- Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 China
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10
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Das M, Sharma P, Sunoj RB. Machine learning studies on asymmetric relay Heck reaction—Potential avenues for reaction development. J Chem Phys 2022; 156:114303. [DOI: 10.1063/5.0084432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The integration of machine learning (ML) methods into chemical catalysis is evolving as a new paradigm for cost and time economic reaction development in recent times. Although there have been several successful applications of ML in catalysis, the prediction of enantioselectivity ( ee) remains challenging. Herein, we describe a ML workflow to predict ee of an important class of catalytic asymmetric transformation, namely, the relay Heck (RH) reaction. A random forest ML model, built using quantum chemically derived mechanistically relevant physical organic descriptors as features, is found to predict the ee remarkably well with a low root mean square error of 8.0 ± 1.3. Importantly, the model is effective in predicting the unseen variants of an asymmetric RH reaction. Furthermore, we predicted the ee for thousands of unexplored complementary reactions, including those leading to a good number of bioactive frameworks, by engaging different combinations of catalysts and substrates drawn from the original dataset. Our ML model developed on the available examples would be able to assist in exploiting the fuller potential of asymmetric RH reactions through a priori predictions before the actual experimentation, which would thus help surpass the trial and error loop to a larger degree.
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Affiliation(s)
- Manajit Das
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Pooja Sharma
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Raghavan B. Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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11
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Zhang Q, Wang S, Yin J, Xiong T, Zhang Q. Remote Site‐Selective Asymmetric Protoboration of Unactivated Alkenes Enabled by Bimetallic Relay Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202713] [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)
- Qiao Zhang
- Northeast Normal University Department of Chemistry CHINA
| | - Simin Wang
- Northeast Normal University Department of Chemistry CHINA
| | - Jianjun Yin
- Northeast Normal University Department of Chemistry CHINA
| | - Tao Xiong
- Northeast Normal University Department of Chemistry Renmin ST. 5268 130024 ChangChun CHINA
| | - Qian Zhang
- Northeast Normal University Department of Chemistry CHINA
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12
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Zhang Q, Wang S, Zhang Q, Xiong T, Zhang Q. Radical Addition-Triggered Remote Migratory Isomerization of Unactivated Alkenes to Difluoromethylene-Containing Alkenes Enabled by Bimetallic Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c05073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Qiao Zhang
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Rd., Changchun, Jilin 130024, China
| | - Simin Wang
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Rd., Changchun, Jilin 130024, China
| | - Qian Zhang
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Rd., Changchun, Jilin 130024, China
| | - Tao Xiong
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Rd., Changchun, Jilin 130024, China
| | - Qian Zhang
- Key Laboratory of Functional Organic Molecule Design & Synthesis of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Rd., Changchun, Jilin 130024, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu, Shanghai 200032, China
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13
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Sader JK, Molder BA, Wulff JE. A Chan-Evans-Lam approach to trisubstituted vinyl ethers. Org Biomol Chem 2021; 19:9649-9653. [PMID: 34730598 DOI: 10.1039/d1ob01827b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Trisubstituted vinyl ethers were accessed via Chan-Evans-Lam coupling of vinyl trifluoroborates and primary aliphatic alcohols. This approach complements prior methods that required the use of neat liquid alcohol coupling partners. A palladium-catalyzed redox-relay Heck reaction was used to convert several vinyl ethers into aldehyde-functionalized 1,3-dihydroisobenzofurans.
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Affiliation(s)
- Jonathan K Sader
- Department of Chemistry, University of Victoria, PO Box 3065 STN CSC, Victoria, British Columbia, Canada, V8W 3V6.
| | - Bryce A Molder
- Department of Chemistry, University of Victoria, PO Box 3065 STN CSC, Victoria, British Columbia, Canada, V8W 3V6.
| | - Jeremy E Wulff
- Department of Chemistry, University of Victoria, PO Box 3065 STN CSC, Victoria, British Columbia, Canada, V8W 3V6.
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14
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Chang R, Cai S, Yang G, Yan X, Huang H. Asymmetric Aminomethylative Etherification of Conjugated Dienes with Aliphatic Alcohols Facilitated by Hydrogen Bonding. J Am Chem Soc 2021; 143:12467-12472. [PMID: 34355892 DOI: 10.1021/jacs.1c06144] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The asymmetric construction of allylic C-O bonds with primary or secondary aliphatic alcohols remains a substantial challenge in Pd-catalyzed allylation chemistry. Here, we report the development of an additive-free, palladium-catalyzed asymmetric aminomethylative etherification of conjugated dienes that enables the efficient, asymmetric O-allylation of primary and secondary aliphatic alcohols as well as water. Mechanism studies revealed that the hydrogen-bonding interaction between the alcohol and the in situ introduced aminomethyl moiety is critical to facilitate the nucleophilic addition of the alcohol to the π-allylpalladium species, which opened up the possibility of using aliphatic alcohols and water as nucleophilic substrates. This reaction tolerates a broad range of functional groups and shows remarkable regioselectivities and uniformly high enantioselectivities, which provides a direct and rapid approach to optically pure allylic 1,3-amino ethers and 1,3-amino alcohols from simple starting materials.
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Affiliation(s)
- Rui Chang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Shoule Cai
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Guoqing Yang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Xuyang Yan
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, People's Republic of China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, People's Republic of China
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15
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Hu L, Gao T, Deng Q, Xiong Y. Organoiodine-induced hydroxylation as well as enantioselective alkoxylation/hydroxylation of allylic alcohols via 1,2- aryl migration. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Ahmad SAZ, Jena TK, Khan FA. Alkyl Enol Ethers: Development in Intermolecular Organic Transformation. Chem Asian J 2021; 16:1685-1702. [PMID: 33979009 DOI: 10.1002/asia.202100277] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/27/2021] [Indexed: 01/03/2023]
Abstract
Alkyl enol ethers (AEE) are versatile synthetic intermediates with a unique reactivity pattern. This review article summarizes the synthesis of AEE as well as its reactivity and how enol ether undergoes intermolecular reactions for various bond formation, leading to the construction of several useful organic molecules. The synthetic applications of alkyl enol ethers towards intermolecular bond-forming reactions include metal-catalyzed reactions, cycloaddition and heterocycle formation as well as rwactions in the field of natural products synthesis. The achievement of these impressive transformations prove the countless synthetic potential of AEE. The main objective of this review is to bring attentiveness among synthetic chemists to show how AEE extensively can be used to react with both electrophiles as well as nucleophiles, thereby behaving as an ambiphilic reactant. We trust that the unique reactivity pattern of alkyl enol ethers and the fundamental mechanistic idea can attract chemists in AEE chemistry. Exclusively, intermolecular reactions of AEE with other functionalized moieties have not been reviewed to the best of our knowledge.
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Affiliation(s)
- Sarwat Asma Ziya Ahmad
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
| | - Tapan Kumar Jena
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
| | - Faiz Ahmed Khan
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
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17
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Lenormand A, Reyes Méndez L, Coulomb J. Relay-Heck Cross-Coupling Between Alkenyl Halides and Unsaturated Alcohols in the Synthesis of Open-Chain Analogues of Musk Odorant Vulcanolide. Chemistry 2021; 27:9276-9280. [PMID: 33882173 DOI: 10.1002/chem.202101080] [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: 03/25/2021] [Indexed: 11/07/2022]
Abstract
Unactivated alkenyl iodides and bromides underwent an unprecedented palladium-catalyzed relay-Heck cross-coupling with a whole range of alkenols of different chain lengths linking the alkene and the alcohol, affording unsaturated aldehydes and ketones in moderate to good yields. In contrast, alkenyl triflates were not suitable partners for this reaction. This method allowed the preparation of open-chain analogues of the musk odorant Vulcanolide, several of which retained key olfactory properties of the parent molecule.
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Affiliation(s)
- Anthony Lenormand
- Firmenich SA, Corporate R&D Division, Rue de la Bergère 7, 1242, Satigny, Switzerland
| | - Lucía Reyes Méndez
- Firmenich SA, Corporate R&D Division, Rue de la Bergère 7, 1242, Satigny, Switzerland
| | - Julien Coulomb
- Firmenich SA, Corporate R&D Division, Rue de la Bergère 7, 1242, Satigny, Switzerland
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18
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Takeuchi D. Synthesis of Polymers with Regulated Repeating Structures by Utilizing Chain Walking Strategy. CHEM LETT 2021. [DOI: 10.1246/cl.200793] [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)
- Daisuke Takeuchi
- Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
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19
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Xie J, Liang R, Jia Y. Recent Advances of Catalytic Enantioselective Heck Reactions and
Reductive‐Heck
Reactions. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000464] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jia‐Qi Xie
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green‐Chemical Synthesis Technology, Zhejiang University of Technology Hangzhou Zhejiang 310014 China
| | - Ren‐Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green‐Chemical Synthesis Technology, Zhejiang University of Technology Hangzhou Zhejiang 310014 China
| | - Yi‐Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green‐Chemical Synthesis Technology, Zhejiang University of Technology Hangzhou Zhejiang 310014 China
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20
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Zhang T, Li WA, Shen HC, Chen SS, Han ZY. Chiral-Anion-Mediated Asymmetric Heck–Matsuda Reaction of Acyclic Alkenyl Alcohols. Org Lett 2021; 23:1473-1477. [DOI: 10.1021/acs.orglett.1c00152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | | | | | | | - Zhi-Yong Han
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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21
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Prater MB, Sigman MS. Enantioselective Synthesis of Alkyl Allyl Ethers via Palladium-Catalyzed Redox-Relay Heck Alkenylation of O-Alkyl Enol Ethers. Isr J Chem 2021; 60:452-460. [PMID: 33446940 DOI: 10.1002/ijch.201900077] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Herein we report a transformation that generates an array of enantiomerically enriched, alkyl allyl ethers. Cyclic, acyclic, and heteroatom-bearing alkenyl triflates undergo an enantioselective, palladium-catalyzed C-C bond formation with diverse acyclic O-alkyl enol ethers in good yields and excellent enantioselectivities.
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Affiliation(s)
- Matthew B Prater
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, UT, 84112
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, UT, 84112
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22
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Bonfield HE, Valette D, Lindsay DM, Reid M. Stereoselective Remote Functionalization via Palladium-Catalyzed Redox-Relay Heck Methodologies. Chemistry 2021; 27:158-174. [PMID: 32744766 PMCID: PMC7821197 DOI: 10.1002/chem.202002849] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Indexed: 11/29/2022]
Abstract
Exploration of novel, three-dimensional chemical space is of growing interest in the drug discovery community and with this comes the challenge for synthetic chemists to devise new stereoselective methods to introduce chirality in a rapid and efficient manner. This Minireview provides a timely summary of the development of palladium-catalyzed asymmetric redox-relay Heck-type processes. These reactions represent an important class of transformation for the selective introduction of remote stereocenters, and have risen to prominence over the past decade. Within this Minireview, the vast scope of these transformations will be showcased, alongside applications to pharmaceutically relevant chiral building blocks and drug substances. To complement this overview, a mechanistic summary and discussion of the current limitations of the transformation are presented, followed by an outlook on future areas of investigation.
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Affiliation(s)
- Holly E. Bonfield
- Chemical DevelopmentGlaxoSmithKlineGunnels Wood RoadStevenageHertfordshireSG1 2NYUK
- Department of Pure and Applied Chemistry WestCHEMUniversity of Strathclyde295 Cathedral StreetGlasgowScotlandG1 1XLUK
| | - Damien Valette
- Chemical DevelopmentGlaxoSmithKlineGunnels Wood RoadStevenageHertfordshireSG1 2NYUK
| | - David M. Lindsay
- Department of Pure and Applied Chemistry WestCHEMUniversity of Strathclyde295 Cathedral StreetGlasgowScotlandG1 1XLUK
| | - Marc Reid
- Department of Pure and Applied Chemistry WestCHEMUniversity of Strathclyde295 Cathedral StreetGlasgowScotlandG1 1XLUK
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23
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Ratushnyy M, Kvasovs N, Sarkar S, Gevorgyan V. Visible‐Light‐Induced Palladium‐Catalyzed Generation of Aryl Radicals from Aryl Triflates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915962] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Maxim Ratushnyy
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor Street Chicago IL 60607-7061 USA
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell, BSB13 Richardson TX 75080 USA
| | - Nikita Kvasovs
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor Street Chicago IL 60607-7061 USA
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell, BSB13 Richardson TX 75080 USA
| | - Sumon Sarkar
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor Street Chicago IL 60607-7061 USA
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell, BSB13 Richardson TX 75080 USA
| | - Vladimir Gevorgyan
- Department of Chemistry University of Illinois at Chicago 845 W. Taylor Street Chicago IL 60607-7061 USA
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell, BSB13 Richardson TX 75080 USA
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24
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Ratushnyy M, Kvasovs N, Sarkar S, Gevorgyan V. Visible-Light-Induced Palladium-Catalyzed Generation of Aryl Radicals from Aryl Triflates. Angew Chem Int Ed Engl 2020; 59:10316-10320. [PMID: 32155303 PMCID: PMC7446712 DOI: 10.1002/anie.201915962] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Indexed: 12/31/2022]
Abstract
A mild visible-light-induced Pd-catalyzed intramolecular C-H arylation of amides is reported. The method operates by cleavage of a C(sp2 )-O bond, leading to hybrid aryl Pd-radical intermediates. The following 1,5-hydrogen atom translocation, intramolecular cyclization, and rearomatization steps lead to valuable oxindole and isoindoline-1-one motifs. Notably, this method provides access to products with readily enolizable functional groups that are incompatible with traditional Pd-catalyzed conditions.
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Affiliation(s)
- Maxim Ratushnyy
- Department of Chemistry,University of Illinois at Chicago 845 W. Taylor Street, Chicago, IL 60607-7061 (USA)
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell, BSB13, Richardson, TX 75080 (USA)
| | - Nikita Kvasovs
- Department of Chemistry,University of Illinois at Chicago 845 W. Taylor Street, Chicago, IL 60607-7061 (USA)
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell, BSB13, Richardson, TX 75080 (USA)
| | - Sumon Sarkar
- Department of Chemistry,University of Illinois at Chicago 845 W. Taylor Street, Chicago, IL 60607-7061 (USA)
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell, BSB13, Richardson, TX 75080 (USA)
| | - Vladimir Gevorgyan
- Department of Chemistry,University of Illinois at Chicago 845 W. Taylor Street, Chicago, IL 60607-7061 (USA)
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell, BSB13, Richardson, TX 75080 (USA)
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25
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Ross SP, Rahman AA, Sigman MS. Development and Mechanistic Interrogation of Interrupted Chain-Walking in the Enantioselective Relay Heck Reaction. J Am Chem Soc 2020; 142:10516-10525. [PMID: 32412759 PMCID: PMC7376753 DOI: 10.1021/jacs.0c03589] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The formation of alkyl-palladium complexes via the nucleopalladation of alkenes is the entry point for a wide range of diverse reactions. One possibility is that the intermediate alkyl-Pd complexes can undergo a "chain-walking" event, to allow for remote functionalization through various termination processes. However, there are few methods to selectively interrupt the chain-walking process at a prescribed location. Herein, we demonstrate that a variety of homoallylic protected amines undergo an interrupted enantioselective relay Heck reaction to give enantioenriched allylic amine products. The selectivity of this process can be diverted to exclusively yield the ene-amide products by virtue of changing the nature of the amine protecting group. To rationalize this observation, we combine experiment and computation to investigate the mechanism of the chain-walking process and termination events. Isotopic labeling experiments and the computed reaction pathways suggest that the system is likely under thermodynamic control, with the selectivity being driven by the relative stability of intermediates encountered during chain-walking. These results illustrate that the chain-walking of alkyl-palladium complexes can be controlled through the alteration of thermodynamic processes and provides a roadmap for exploiting these processes in future reaction development.
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Affiliation(s)
- Sean P. Ross
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah, 84112, United States
| | | | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah, 84112, United States
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26
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Li J, Qu S, Zhao W. Rhodium‐Catalyzed Remote C(sp
3
)−H Borylation of Silyl Enol Ethers. Angew Chem Int Ed Engl 2020; 59:2360-2364. [DOI: 10.1002/anie.201913281] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/27/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Jie Li
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha Hunan 410082 P. R. China
| | - Shuanglin Qu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha Hunan 410082 P. R. China
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha Hunan 410082 P. R. China
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27
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Yang P, Xu R, Zheng C, You S. Pd‐Catalyzed Dearomatization of Indole Derivatives
via
Intermolecular Heck Reactions
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900509] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ping Yang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular SynthesisShanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Ren‐Qi Xu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular SynthesisShanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular SynthesisShanghai 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 SynthesisShanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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28
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Polo EC, Wang MF, Angnes RA, Braga AAC, Correia CRD. Enantioselective Heck Arylation of Acyclic Alkenol Aryl Ethers: Synthetic Applications and DFT Investigation of the Stereoselectivity. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ellen Christine Polo
- Departamento de Química Orgânica, Instituto de QuímicaUniversidade Estadual de Campinas Rua Josué de Castro, s/n 13083-970, Campinas São Paulo Brazil
| | - Martí Fernández Wang
- Departamento de Química Orgânica, Instituto de QuímicaUniversidade Estadual de Campinas Rua Josué de Castro, s/n 13083-970, Campinas São Paulo Brazil
| | - Ricardo Almir Angnes
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Avenida Lineu Prestes, 748 05508-000, São Paulo São Paulo Brazil
| | - Ataualpa A. C. Braga
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Avenida Lineu Prestes, 748 05508-000, São Paulo São Paulo Brazil
| | - Carlos Roque Duarte Correia
- Departamento de Química Orgânica, Instituto de QuímicaUniversidade Estadual de Campinas Rua Josué de Castro, s/n 13083-970, Campinas São Paulo Brazil
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29
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Li J, Qu S, Zhao W. Rhodium‐Catalyzed Remote C(sp
3
)−H Borylation of Silyl Enol Ethers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913281] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jie Li
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha Hunan 410082 P. R. China
| | - Shuanglin Qu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha Hunan 410082 P. R. China
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha Hunan 410082 P. R. China
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30
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Yuan Q, Prater MB, Sigman MS. Enantioselective Synthesis of γ-Functionalized Cyclopentenones and δ-Functionalized Cycloheptenones Utilizing a Redox-Relay Heck Strategy. Adv Synth Catal 2019; 362:326-330. [PMID: 33447174 DOI: 10.1002/adsc.201901239] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this report, the desymmetrization of cyclic enones under relay Heck conditions with an array of aryl boronic acids, alkenyl triflates and indole derivatives is described. This method grants facile access to diverse γ-functionalized cyclopentenones and δ-functionalized cycloheptenones. Using this approach, a formal synthesis of (S)-baclofen was completed in high yield and excellent enantioselectivity.
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Affiliation(s)
- Qianjia Yuan
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, UT, 84112.,These authors contributed equally
| | - Matthew B Prater
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, UT, 84112.,These authors contributed equally
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, UT, 84112
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31
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32
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Kang K, Nishimoto Y, Yasuda M. Regio- and Stereoselective Carboindation of Internal Alkynyl Ethers with Organosilicon or -stannane Nucleophiles. J Org Chem 2019; 84:13345-13363. [DOI: 10.1021/acs.joc.9b01505] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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33
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Yuan Q, Sigman MS. Palladium-Catalyzed Enantioselective Alkenylation of Enelactams Using a Relay Heck Strategy. Chemistry 2019; 25:10823-10827. [PMID: 31216370 DOI: 10.1002/chem.201902813] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Indexed: 01/14/2023]
Abstract
In this report, a palladium-catalyzed redox-relay Heck process to access optically active alkenylated α,β-unsaturated lactams is described. Under mild reaction conditions, electron-deficient alkenyl triflates and electron-rich alkenyl iodonium salts undergo enantioselective and site-selective coupling with enelactams to deliver the products in high yields and excellent enantioselectivities. Furthermore, the products allow facile access to natural products such as (+)-calvine and (+)-2-epicalvine in addition to the bioactive molecule aza-goniothalamin.
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Affiliation(s)
- Qianjia Yuan
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah, 84112, USA
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah, 84112, USA
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34
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Chen H, Sun S, Liao X. Nickel-Catalyzed Decarboxylative Alkenylation of Anhydrides with Vinyl Triflates or Halides. Org Lett 2019; 21:3625-3630. [PMID: 31062981 DOI: 10.1021/acs.orglett.9b01048] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Decarboxylative cross-coupling of aliphatic acid anhydrides with vinyl triflates or halides was accomplished via nickel catalysis. This methodology works well with a broad array of substrates and features abundant functional group tolerance. Notably, our approach addresses the issue of safe and environmental installation of methyl or ethyl group into molecular scaffolds. The method possesses high chemoselectivity toward alkyl groups when aliphatic/aromatic mixed anhydrides are involved. Furthermore, diverse ketones could be modified with our strategy.
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Affiliation(s)
- Hui Chen
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology , Tsinghua University , Beijing 100084 , China
| | - Shuhao Sun
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology , Tsinghua University , Beijing 100084 , China
| | - Xuebin Liao
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Beijing Advanced Innovation Center for Structural Biology , Tsinghua University , Beijing 100084 , China
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35
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Han C, Fu Z, Guo S, Fang X, Lin A, Yao H. Palladium-Catalyzed Remote 1,n-Arylamination of Unactivated Terminal Alkenes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00688] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chunhua Han
- State Key Laboratory of Natural Medicines (SKLNM) and Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Zhiyuan Fu
- State Key Laboratory of Natural Medicines (SKLNM) and Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Songjin Guo
- State Key Laboratory of Natural Medicines (SKLNM) and Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Xinxin Fang
- State Key Laboratory of Natural Medicines (SKLNM) and Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
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36
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Nakamura H, Yasui K, Kanda Y, Baran PS. 11-Step Total Synthesis of Teleocidins B-1-B-4. J Am Chem Soc 2019; 141:1494-1497. [PMID: 30636411 DOI: 10.1021/jacs.8b13697] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A unified and modular approach to the teleocidin B family of natural products is presented that proceeds in 11 steps and features an array of interesting strategies and methods. Indolactam V, the known biosynthetic precursor to this family, was accessed through electrochemical amination, Cu-mediated aziridine opening, and a remarkable base-induced macrolactamization. Guided by a desire to minimize concession steps, the tactical combination of C-H borylation and a Sigman-Heck transform enabled the convergent, stereocontrolled synthesis of the teleocidins.
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Affiliation(s)
- Hugh Nakamura
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Kosuke Yasui
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Yuzuru Kanda
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Phil S Baran
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
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37
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Race NJ, Yuan Q, Sigman MS. Enantioselective C2-Alkylation of Indoles through a Redox-Relay Heck Reaction of 2-Indole Triflates. Chemistry 2018; 25:512-515. [PMID: 30402891 DOI: 10.1002/chem.201805416] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Indexed: 11/06/2022]
Abstract
A palladium-catalyzed enantioselective redox-relay Heck reaction of 2-indole triflates and disubstituted alkenes is reported. This process combines readily available indole triflates with a variety of alkenes to afford a range of indole derivatives bearing a stereocenter adjacent to C2. Enantioselectivity is achieved through use of a simple pyridine-oxazoline ligand. Tuning the electronics of the indole, through judicious choice of N-protecting group, is required to ensure selective β-hydride elimination away from the indole core. Utility of this method is highlighted in a modular formal synthesis of an S1P1 agonist precursor developed by Merck.
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Affiliation(s)
- Nicholas J Race
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah, 84112, USA
| | - Qianjia Yuan
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah, 84112, USA
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah, 84112, USA
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38
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Lehnherr D, Ji Y, Neel AJ, Cohen RD, Brunskill APJ, Yang J, Reibarkh M. Discovery of a Photoinduced Dark Catalytic Cycle Using in Situ LED-NMR Spectroscopy. J Am Chem Soc 2018; 140:13843-13853. [DOI: 10.1021/jacs.8b08596] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dan Lehnherr
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Yining Ji
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Andrew J. Neel
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Ryan D. Cohen
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Andrew P. J. Brunskill
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Junyu Yang
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Mikhail Reibarkh
- Process Research & Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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39
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Ray B, Mukherjee S. Direct Catalytic Enantioselective Vinylogous Aldol Reaction of Allyl Ketones to Pyrazole-4,5-diones. J Org Chem 2018; 83:10871-10880. [DOI: 10.1021/acs.joc.8b01566] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Bidisha Ray
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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Wu K, Sun N, Hu B, Shen Z, Jin L, Hu X. Geometry-Constrained Iminopyridyl Palladium-Catalyzed Hydroarylation of Alkynes to Prepare Tri-substituted Alkenes Using Alcohol as Reductant. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800423] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ke Wu
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310032 People's Republic of China
| | - Nan Sun
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310032 People's Republic of China
| | - Baoxiang Hu
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310032 People's Republic of China
| | - Zhenlu Shen
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310032 People's Republic of China
| | - Liqun Jin
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310032 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; The Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Xinquan Hu
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310032 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; The Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
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