1
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Dethe DH, Kumar V, Datta A. Ru(II)-Catalyzed C-H Alkylation of N-Benzyltriflamide with Maleimides: Synthesis of o-Succinimide Substituted Benzaldehydes. Chemistry 2024:e202401301. [PMID: 38864751 DOI: 10.1002/chem.202401301] [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: 04/02/2024] [Revised: 06/12/2024] [Accepted: 06/12/2024] [Indexed: 06/13/2024]
Abstract
A ruthenium-catalyzed N-benzyltriflamide assisted C-H alkylation with maleimide followed by hydrolysis of in situ generated imine has been developed for the first time. This synthetic method results in the efficient synthesis of o-succinimide derivatives of benzaldehydes. This reaction involves less expensive and mild reaction conditions and shows excellent site selectivity and good functional group compatibility.
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Affiliation(s)
- Dattatraya H Dethe
- Department of Chemistry, Indian Institute of Technology, Kanpur, Kanpur, 208016, India
| | - Vimlesh Kumar
- Department of Chemistry, Indian Institute of Technology, Kanpur, Kanpur, 208016, India
| | - Arnadeep Datta
- Department of Chemistry, Indian Institute of Technology, Kanpur, Kanpur, 208016, India
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2
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Shambhavi CN, Jeganmohan M. Ru(II)-Catalyzed C-H Alkenylation of Benzimidates with Unactivated Olefins: A Route to ortho-Alkenylated Benzonitriles. Org Lett 2023; 25:358-363. [PMID: 36606744 DOI: 10.1021/acs.orglett.2c04036] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A Ru(II)-catalyzed C-H alkenylation of benzimidates with unactivated alkenes providing ortho-alkenylated benzonitriles in good to excellent yields in a highly regio- and stereoselective manner is described. In the reaction, an imidate group converted into a nitrile under the reaction conditions. The alkenylation reaction was compatible with various substituted benzimidates as well as functionalized unactivated olefins, including ibuprofen-, neproxen-, coumarin-, and cholesterol-substituted alkenes. A feasible reaction mechanism was proposed to account for the present alkenylation reaction.
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Affiliation(s)
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India
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3
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Kalshetti RG, Rajput R, Motiwala Z, Srinivasa Reddy D, Kulkarni KA, Ramana CV. Postmodification of voxelotor (GBT 440) via [Rh]-catalyzed cross dehydrogenative coupling with olefins. Bioorg Med Chem Lett 2022; 77:129022. [DOI: 10.1016/j.bmcl.2022.129022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/24/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022]
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4
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Shambhavi CN, Jeganmohan M. Rh(III)-Catalyzed Enone Carbonyl/Ketone-Directed Aerobic C-H Olefination of Aromatics with Unactivated Olefins. J Org Chem 2022; 87:13236-13258. [PMID: 36128804 DOI: 10.1021/acs.joc.2c01730] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Rh(III)-catalyzed weak enone carbonyl/ketone-assisted aerobic oxidative C-H olefination of aromatics with unactivated alkenes has been developed. This protocol involves cross-dehydrogenative Heck-type olefination reaction of various substituted biologically relevant chalcones and aromatic ketones such as acetophenones and chromones with various functionalized unactivated olefins in moderate to good yields. Further, ortho-alkylation of chalcones with norbornene is also demonstrated. A possible reaction mechanism involving weak chelation-assisted C-H activation/insertion/β-hydride elimination was proposed and supported by the deuterium labeling studies.
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Affiliation(s)
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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5
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Liu YY, Qu YL, Kang YS, Zhu YL, Sun WY, Lu Y. Mild Three-Step Consecutive C-H Activations. Org Lett 2022; 24:3118-3122. [PMID: 35475650 DOI: 10.1021/acs.orglett.2c00620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, the Rh-catalyzed consecutive C-H bond olefination/annulation/olefination cascade, tandemly directed by sulfonamide and ester groups, has been developed under mild conditions with the assistance of 1-adamantane carboxylic acid. A seven-membered metallacycle including an ester group was preferred to the five-membered one including a sulfonamide group for the third C-H activation. In this transformation, the Rh catalyst exhibits its high reactivity by catalyzing a triple C-H activation process with a low catalyst loading at 50 °C. This method can be applied in the construction of various pharmaceutical derivatives.
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Affiliation(s)
- Yao-Yao Liu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing 210023, China
| | - Yuan-Lu Qu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing 210023, China
| | - Yan-Shang Kang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing 210023, China
| | - Yue-Lu Zhu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing 210023, China
| | - Wei-Yin Sun
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing 210023, China
| | - Yi Lu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing 210023, China
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6
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Ni SF, Huang G, Chen Y, Wright JS, Li M, Dang L. Recent advances in γ-C(sp3)–H bond activation of amides, aliphatic amines, sulfanilamides and amino acids. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214255] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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7
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Du X, Hu Y, Yang D, Huang D, Yang W, Wu H, Zhao H. Isoindolinone synthesis through Rh/Cu-catalyzed oxidative C-H/N-H annulation of N-methoxy benzamides with saturated ketones. Org Biomol Chem 2022; 20:783-789. [PMID: 34989388 DOI: 10.1039/d1ob02166d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of isoindolinones from N-methoxy benzamides and saturated ketones via a bimetallic tandem catalytic annulation has been accomplished. The reaction is catalyzed by a Rh/Cu-cocatalytic system and proceeds via the combination of Cu-catalyzed dehydrogenation of ketones and Rh-catalyzed direct C-H functionalization with the assistance of the N-methoxy amide group which also acts as an oxidant to regenerate the Rh catalyst. This method shows good compatibility with a wide range of substrates and functional groups, and provides an alternative strategy to obtain diverse isoindolinones.
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Affiliation(s)
- Xiao Du
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, P. R. China.
| | - Yuntao Hu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, P. R. China.
| | - Darun Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, P. R. China.
| | - Decai Huang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, P. R. China.
| | - Wendi Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, P. R. China.
| | - Hailong Wu
- School of Mechanical and Resource Engineering, Wuzhou University, Wuzhou, China
| | - Huaiqing Zhao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, P. R. China.
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8
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Thombal RS, Aslam M, Mohandoss S, Lee YR. Rhodium-catalyzed cascade C–H activation/annulation/1,6-acyl migration: direct construction of free N–H indoles under mild conditions. NEW J CHEM 2022. [DOI: 10.1039/d2nj00508e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh-Catalyzed regioselective cascade C–H activation/annulation/1,6-acyl migration of N-acetanilides with alkynes via C–C/C–N/C–O bond formation is developed.
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Affiliation(s)
- Raju S. Thombal
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Mohammad Aslam
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sonaimuthu Mohandoss
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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9
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Yogananda Chary D, Aashritha K, Sridhar B, Subba Reddy BV. Rh(III)-catalyzed ortho-C–H bond functionalization of 2-arylquinoxalines with vinyl arenes. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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10
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Gu S, Musgrave CB, Gehman ZM, Zhang K, Dickie DA, Goddard WA, Gunnoe TB. Rhodium and Iridium Complexes Bearing “Capping Arene” Ligands: Synthesis and Characterization. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shunyan Gu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Charles B. Musgrave
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Zoë M. Gehman
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Ke Zhang
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Diane A. Dickie
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - William A. Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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11
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Sunny S, John SE, Shankaraiah N. Exploration of C‐H Activation Strategies in Construction of Functionalized 2‐Aryl Benzoazoles: A Decisive Review. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Steeva Sunny
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Stephy Elza John
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
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12
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Zhang F, Zhu X, Luo B, Wang C. Rh(iii)-catalyzed regioselective C-H activation dialkenylation/annulation cascade for rapid access to 6 H-isoindolo[2,1- a]indole. RSC Adv 2021; 11:25194-25198. [PMID: 35478900 PMCID: PMC9037025 DOI: 10.1039/d1ra02998c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 07/13/2021] [Indexed: 11/21/2022] Open
Abstract
6H-isoindolo[2,1-a]indoles were accessed via a Rh(iii)-catalyzed N-H free indole directed C-H activation dialkenylation/annulation cascade in moderate to excellent yields. This protocol also features: reaction procedures that are insensitive to air and moisture, excellent regioselectivity and good functional group tolerance.
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Affiliation(s)
- Fangming Zhang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
| | - Xin Zhu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
| | - Bo Luo
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
| | - Chengming Wang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University Guangzhou 511443 China
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13
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Shinde VN, Rangan K, Kumar D, Kumar A. Palladium-Catalyzed Weakly Coordinating Lactone-Directed C-H Bond Functionalization of 3-Arylcoumarins: Synthesis of Bioactive Coumestan Derivatives. J Org Chem 2021; 86:9755-9770. [PMID: 34181412 DOI: 10.1021/acs.joc.1c01097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A palladium-catalyzed highly regioselective ortho-selective C-H functionalization of 3-arylcoumarins has been developed. The method utilizes the weakly coordinating lactone as a directing group. The versatility of the strategy is highlighted by developing methodologies for alkenylation, halogenation, fluoroalkoxylation, and hydroxylation. Different functional groups were well tolerated, and functionalized coumarins were obtained in moderate to high yields. The method also showed good selectivity for monofunctionalization versus difunctionalization. The generated ortho-hydroxy derivatives were cyclized in the presence of DDQ, thus developing a simple and fast method for the synthesis of bioactive coumestan from 3-arylcoumarins.
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Affiliation(s)
- Vikki N Shinde
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Telangana 500078, India
| | - Dalip Kumar
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
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14
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Luo J, Fu Q. Aldehyde‐Directed C(
sp
2
)−H Functionalization under Transition‐Metal Catalysis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100325] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Junfei Luo
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province School of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 P. R. China
| | - Qiang Fu
- School of Pharmacy Southwest Medical University Luzhou 610041 P. R. China
- Department of Pharmacy The Affiliated Hospital of Southwest Medical University Luzhou 646000 P. R. China
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15
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Jambu S, Shambhavi CN, Jeganmohan M. Aerobic Oxidative C-H Olefination of Arylamides with Unactivated Olefins via a Rh(III)-Catalyzed C-H Activation. Org Lett 2021; 23:2964-2970. [PMID: 33818094 DOI: 10.1021/acs.orglett.1c00646] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient Rh(III)-catalyzed aerobic oxidative C-H alkenylation of arylamides with unactivated alkenes is described. The olefination reaction was compatible with various substituted arylamides including primary, secondary, and tertiary as well as functionalized unactivated olefins. Meanwhile, ortho mono/bis-alkylated arylamides were synthesized in the reaction of arylamides with norbornene. In the alkenylation reaction, molecular oxygen along with organic acid was used to regenerate the active catalyst for the next catalytic cycle. A possible reaction mechanism involving C-H activation/insertion/β-hydride elimination followed by aerobic oxidation was proposed and supported by the deuterium labeling studies.
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Affiliation(s)
- Subramanian Jambu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | | | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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16
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De SR. N
‐Nitroso As A Novel Directing Group in Transition‐Metal‐Catalyzed C(
sp
2
)−H Bond Functionalizations of
N
‐Nitrosoanilines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Saroj Ranjan De
- Department of Chemistry National Institute of Technology, Uttarakhand Srinagar-Garhwal Uttarakhand 246174 India
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17
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Synergistic Dinuclear Rhodium Induced Rhodium-Walking Enabling Alkene Terminal Arylation: A Theoretical Study. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Mondal A, van Gemmeren M. Catalyst-Controlled Regiodivergent C-H Alkynylation of Thiophenes*. Angew Chem Int Ed Engl 2021; 60:742-746. [PMID: 33044788 PMCID: PMC7839547 DOI: 10.1002/anie.202012103] [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: 09/04/2020] [Revised: 10/08/2020] [Indexed: 12/15/2022]
Abstract
Alkynes are highly attractive motifs in organic synthesis due to their presence in natural products and bioactive molecules as well as their versatility in a plethora of subsequent transformations. A common procedure to insert alkynes into (hetero)arenes, such as the thiophenes studied herein, consists of a halogenation followed by a Sonogashira cross-coupling. The regioselectivity of this approach depends entirely on the halogenation step. Similarly, direct alkynylations of thiophenes have been described that follow the same regioselectivity patterns. Herein we report the development of a palladium catalyzed C-H activation/alkynylation of thiophenes. The method is applicable to a broad range of thiophene substrates. For 3-substituted substrates where controlling the regioselectivity between the C2 and C5 position is particularly challenging, two sets of reaction conditions enable a regiodivergent reaction, giving access to each regioisomer selectively. Both protocols use the thiophene as limiting reagent and show a broad scope, rendering our method suitable for late-stage modification.
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Affiliation(s)
- Arup Mondal
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 3648149MünsterGermany
| | - Manuel van Gemmeren
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 3648149MünsterGermany
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19
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Dai Y, Li X, Liu B. Rh(III)-Catalyzed Efficient Synthesis of Isocoumarins from Cyclohexanediones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Wu X, Lu Y, Qiao J, Dai W, Jia X, Ni H, Zhang X, Liu H, Zhao F. Rhodium(III)-Catalyzed C–H Alkenylation/Directing Group Migration for the Regio- and Stereoselective Synthesis of Tetrasubstituted Alkenes. Org Lett 2020; 22:9163-9168. [DOI: 10.1021/acs.orglett.0c03077] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaowei Wu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University , Chengdu 610052, China
- Department of Pharmacology and Chemical Biology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Yangbin Lu
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jin Qiao
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, China
| | - Wenhao Dai
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University , Chengdu 610052, China
| | - Hangcheng Ni
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, China
| | - Xiaoning Zhang
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, China
| | - Hong Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University , Chengdu 610052, China
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, Chengdu University, Jinhua 321007, China
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21
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Mondal A, Gemmeren M. Katalysatorkontrollierte regiodivergente C‐H‐Alkinylierung von Thiophenen**. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Arup Mondal
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
| | - Manuel Gemmeren
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Deutschland
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22
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Bu Q, Kuniyil R, Shen Z, Gońka E, Ackermann L. Insights into Ruthenium(II/IV)-Catalyzed Distal C-H Oxygenation by Weak Coordination. Chemistry 2020; 26:16450-16454. [PMID: 32596872 PMCID: PMC7756554 DOI: 10.1002/chem.202003062] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Indexed: 11/07/2022]
Abstract
C-H hydroxylation of aryl acetamides and alkyl phenylacetyl esters was accomplished via challenging distal weak O-coordination by versatile ruthenium(II/IV) catalysis. The ruthenium(II)-catalyzed C-H oxygenation of aryl acetamides proceeded through C-H activation, ruthenium(II/IV) oxidation and reductive elimination, thus providing step-economical access to valuable phenols. The p-cymene-ruthenium(II/IV) manifold was established by detailed experimental and DFT-computational studies.
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Affiliation(s)
- Qingqing Bu
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Rositha Kuniyil
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Zhigao Shen
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Elżbieta Gońka
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
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23
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Ortho-substitution groups promoted photo-induced E (trans) → Z (cis) isomerization. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Tu G, Wang D, Yuan C, Zhang J, Zhao Y. Palladium-Catalyzed Para-Selective Difluoromethylation of Arene Esters. J Org Chem 2020; 85:10740-10749. [DOI: 10.1021/acs.joc.0c01257] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Guangliang Tu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Dongjie Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Chunchen Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jingyu Zhang
- College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, P. R. China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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25
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Chen H, Farizyan M, Gemmeren M. Regioselective Olefination of 3‐Substituted Five‐Membered Heteroarenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000659] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hao Chen
- Organisch‐Chemisches Institut Westfälische Wilhelms‐Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Mirxan Farizyan
- Organisch‐Chemisches Institut Westfälische Wilhelms‐Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Manuel Gemmeren
- Organisch‐Chemisches Institut Westfälische Wilhelms‐Universität Münster Corrensstraße 40 48149 Münster Germany
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26
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Chen H, Farizyan M, Ghiringhelli F, van Gemmeren M. Sterically Controlled C-H Olefination of Heteroarenes. Angew Chem Int Ed Engl 2020; 59:12213-12220. [PMID: 32267990 PMCID: PMC7384109 DOI: 10.1002/anie.202004521] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Indexed: 01/06/2023]
Abstract
The regioselective functionalization of heteroarenes is a highly attractive synthetic target due to the prevalence of multiply substituted heteroarenes in nature and bioactive compounds. Some substitution patterns remain challenging: While highly efficient methods for the C2-selective olefination of 3-substituted five-membered heteroarenes have been reported, analogous methods to access the 5-olefinated products have remained limited by poor regioselectivities and/or the requirement to use an excess of the valuable heteroarene starting material. Herein we report a sterically controlled C-H olefination using heteroarenes as the limiting reagent. The method enables the highly C5-selective olefination of a wide range of heteroarenes and is shown to be useful in the context of late-stage functionalization.
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Affiliation(s)
- Hao Chen
- Max Planck Institute for Chemical Energy ConversionStiftstraße 34–3645470Mülheim an der RuhrGermany
| | - Mirxan Farizyan
- Max Planck Institute for Chemical Energy ConversionStiftstraße 34–3645470Mülheim an der RuhrGermany
| | - Francesca Ghiringhelli
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - Manuel van Gemmeren
- Max Planck Institute for Chemical Energy ConversionStiftstraße 34–3645470Mülheim an der RuhrGermany
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
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27
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Li JJ, Wang CG, Yu JF, Wang P, Yu JQ. Cu-Catalyzed C-H Alkenylation of Benzoic Acid and Acrylic Acid Derivatives with Vinyl Boronates. Org Lett 2020; 22:4692-4696. [PMID: 32511925 DOI: 10.1021/acs.orglett.0c01469] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient Cu-catalyzed C-H alkenylation with acyclic and cyclic vinyl boronates was realized for the first time under mild conditions. The scope of the vinyl borons and the compatibility with functional groups including heterocycles are superior than Pd-catalyzed C-H coupling with vinyl borons, providing a reliable access to multisubstituted alkenes and dienes. Subsequent hydrogenation of the product from the internal vinyl borons will lead to installation of secondary alkyls.
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Affiliation(s)
- Jian-Jun Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Cheng-Gang Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Jin-Feng Yu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China.,CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road, Shanghai 200032, China
| | - Jin-Quan Yu
- The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla 92037, California, United States
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28
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Kumar M, Verma S, Verma AK. Ru(II)-Catalyzed Oxidative Olefination of Benzamides: Switchable Aza-Michael and Aza-Wacker Reaction for Synthesis of Isoindolinones. Org Lett 2020; 22:4620-4626. [DOI: 10.1021/acs.orglett.0c01237] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manoj Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Shalini Verma
- Department of Chemistry, University of Delhi, Delhi 110007, India
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29
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Chen H, Farizyan M, Ghiringhelli F, Gemmeren M. Sterically Controlled C−H Olefination of Heteroarenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004521] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hao Chen
- Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Mirxan Farizyan
- Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Francesca Ghiringhelli
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Manuel Gemmeren
- Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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30
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Liu J, Gao Y, Zhu Y, Zhu J, Wang C, Rui X, Yang K, Si D, Lin J, Yuan D, Wen H, Li W. Rhodium(III)-Catalyzed Oxidative Annulation of 4-Aminoquinolines and Acrylate through Two Consecutive C(sp 2)-H Activations. Org Lett 2020; 22:2657-2662. [PMID: 32186885 DOI: 10.1021/acs.orglett.0c00630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The C-H annulation of the five-position of quinolines and acrylates to afford heterocycles is an active field of research in organic synthesis. Herein the annulation of 4-aminoquinolines with acrylates through two consecutive C-H activations catalyzed by Rh(III) is described. The reaction proceeds with high atom efficiency under mild reaction conditions, and this protocol will provide appealing strategies for the synthesis of fused quinoline heterocycles.
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Affiliation(s)
- Jian Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi Gao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yehua Zhu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Junru Zhu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chao Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiyan Rui
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Kundi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Dongjuan Si
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jiamin Lin
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Dandan Yuan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hongmei Wen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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31
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Wang J, Liu Y, Xiong Z, Zhong L, Ding S, Li L, Zhao H, Chen C, Shang Y. Palladium-catalysed dearomative aryl/cycloimidoylation of indoles. Chem Commun (Camb) 2020; 56:3249-3252. [PMID: 32108847 DOI: 10.1039/d0cc00402b] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first example of a dearomative palladium-catalysed isocyanide insertion reaction has been developed using functionalized isocyanides as the reaction partner of N-(2-bromobenzoyl)indoles. The imidoyl-palladium intermediate generated by tandem indole double bond/isocyanide insertion reactions could be trapped by intramolecular functional groups such as the C(sp2)-H bond and alkenes, affording diversified indoline derivatives bearing C3 imine-containing heterocycles. The dearomative aryl/cycloimidoylation of indoles proceeded smoothly in good to excellent yields with a wide functional group tolerance.
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Affiliation(s)
- Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yuan Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ling Zhong
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Shumin Ding
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Lianjie Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Haixia Zhao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Chen Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
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32
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Yang C, Chen C, Li S, He X, Zuo Y, Hu W, Zhou T, Wang J, Shang Y. Rh(III)-Catalyzed Relay Double Carbenoid Insertion and Diannulation of Sulfoximine Benzamides with α-Diazo Carbonyl Compounds: Access to Furo[2,3-c]isochromenes. Org Lett 2020; 22:2506-2511. [DOI: 10.1021/acs.orglett.9b04659] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chen Yang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Chen Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Shunfan Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Youpeng Zuo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Wangcheng Hu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Tongtong Zhou
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
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33
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Chen W, Li HJ, Li QY, Wu YC. Direct oxidative coupling of N-acyl pyrroles with alkenes by ruthenium(ii)-catalyzed regioselective C2-alkenylation. Org Biomol Chem 2020; 18:500-513. [PMID: 31850444 DOI: 10.1039/c9ob02421b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ruthenium(ii)-catalyzed oxidative coupling by C2-alkenylation of N-acyl pyrroles with alkenes has been described. The acyl unit was found to be an effective chelating group for the activation of aryl C-H bonds ortho to the directing group. The alkenylation reaction of benzoyl pyrroles occurred regioselectively at the C2-position of the pyrrole ring, without touching the benzene ring. The reaction provides exclusively monosubstituted pyrroles under the optimized conditions. Disubstituted pyrroles could be obtained using higher loadings of the ruthenium(ii)-catalyst and the additives.
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Affiliation(s)
- Weiqiang Chen
- School of Marine Science and Technology, Harbin Institute of Technology, 2 Weihai Road, Weihai 264209, P. R. China.
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34
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Dutta U, Maiti S, Pimparkar S, Maiti S, Gahan LR, Krenske EH, Lupton DW, Maiti D. Rhodium catalyzed template-assisted distal para-C-H olefination. Chem Sci 2019; 10:7426-7432. [PMID: 31489165 PMCID: PMC6713868 DOI: 10.1039/c9sc01824g] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 06/15/2019] [Indexed: 01/12/2023] Open
Abstract
Rhodium catalysis has been extensively used for ortho-C-H functionalization reactions, and successfully extended to meta-C-H functionalization. Its application to para-C-H activation remains an unmet challenge. Herein we disclose the first example of such a reaction, with the Rh-catalyzed para-C-H olefination of arenes. The use of a Si-linked cyanobiphenyl unit as a traceless directing group leads to highly para-selective arene-olefin couplings.
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Affiliation(s)
- Uttam Dutta
- Department of Chemistry , IIT Bombay , Powai , Mumbai 400076 , India .
- IITB-Monash Research Academy , IIT Bombay , Powai , Mumbai 400 076 , India
- School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia .
| | - Sudip Maiti
- Department of Chemistry , IIT Bombay , Powai , Mumbai 400076 , India .
| | - Sandeep Pimparkar
- Department of Chemistry , IIT Bombay , Powai , Mumbai 400076 , India .
- IITB-Monash Research Academy , IIT Bombay , Powai , Mumbai 400 076 , India
- School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia .
| | - Siddhartha Maiti
- Department of Chemistry , IIT Bombay , Powai , Mumbai 400076 , India .
| | - Lawrence R Gahan
- School of Chemistry and Molecular Biosciences , University of Queensland , Brisbane , Queensland 4072 , Australia .
| | - Elizabeth H Krenske
- School of Chemistry and Molecular Biosciences , University of Queensland , Brisbane , Queensland 4072 , Australia .
| | - David W Lupton
- IITB-Monash Research Academy , IIT Bombay , Powai , Mumbai 400 076 , India
- School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia .
| | - Debabrata Maiti
- Department of Chemistry , IIT Bombay , Powai , Mumbai 400076 , India .
- IITB-Monash Research Academy , IIT Bombay , Powai , Mumbai 400 076 , India
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35
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Fu XP, Tang SB, Yang JY, Zhang LL, Xia CC, Ji YF. Cascade Reaction for the Synthesis of Carbolines from O
-Methylketoximes and Styrenes via Palladium-Catalyzed C-H Activation and Sequential Annulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao-Pan Fu
- Engineering Research Centre of Pharmaceutical Process Chemistry; Ministry of Education; School of Pharmacy; East China University of Science & Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Shi-Biao Tang
- Engineering Research Centre of Pharmaceutical Process Chemistry; Ministry of Education; School of Pharmacy; East China University of Science & Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Jin-Yue Yang
- Engineering Research Centre of Pharmaceutical Process Chemistry; Ministry of Education; School of Pharmacy; East China University of Science & Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Li-Li Zhang
- Engineering Research Centre of Pharmaceutical Process Chemistry; Ministry of Education; School of Pharmacy; East China University of Science & Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Cheng-Cai Xia
- Institute of Pharmacology; Pharmacy College; Shandong First Medical University & Shandong Academy of Medical Sciences; 271016 Tai'an China
| | - Ya-Fei Ji
- Engineering Research Centre of Pharmaceutical Process Chemistry; Ministry of Education; School of Pharmacy; East China University of Science & Technology; 130 Meilong Road 200237 Shanghai P. R. China
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36
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Fu X, Yang J, Deng K, Shao L, Xia C, Ji Y. Tandem C–C/C–N Formation via Palladium-Catalyzed C–H Activation/Styrenation and Sequential Annulation of O-Methylketoxime with Styrenes. Org Lett 2019; 21:3505-3509. [DOI: 10.1021/acs.orglett.9b00702] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Xiaopan Fu
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Jinyue Yang
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Kezuan Deng
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Lingyan Shao
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Chengcai Xia
- Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, 619 Changcheng Road, Taian 271016, P. R. China
| | - Yafei Ji
- School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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37
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Rej S, Chatani N. Rhodiumkatalysierte sp 2‐ und sp 3‐C‐H‐Funktionalisierungen mit entfernbaren dirigierenden Gruppen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201808159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Supriya Rej
- Department of Applied ChemistryFaculty of EngineeringOsaka University, Suita Osaka 565-0871 Japan
| | - Naoto Chatani
- Department of Applied ChemistryFaculty of EngineeringOsaka University, Suita Osaka 565-0871 Japan
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38
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Rej S, Chatani N. Rhodium-Catalyzed C(sp 2 )- or C(sp 3 )-H Bond Functionalization Assisted by Removable Directing Groups. Angew Chem Int Ed Engl 2019; 58:8304-8329. [PMID: 30311719 DOI: 10.1002/anie.201808159] [Citation(s) in RCA: 263] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/12/2018] [Indexed: 12/25/2022]
Abstract
In recent years, transition-metal-catalyzed C-H activation has become a key strategy in the field of organic synthesis. Rhodium complexes are widely used as catalysts in a variety of C-H functionalization reactions because of their high reactivity and selectivity. The availability of a number of rhodium complexes in various oxidation states enables diverse reaction patterns to be obtained. Regioselectivity, an important issue in C-H activation chemistry, can be accomplished by using a directing group to assist the reaction. However, to obtain the target functionalized compounds, it is also necessary to use a directing group that can be easily removed. A wide range of directed C-H functionalization reactions catalyzed by rhodium complexes have been reported to date. In this Review, we discuss Rh-catalyzed C-H functionalization reactions that are aided by the use of a removable directing group such as phenol, amine, aldehyde, ketones, ester, acid, sulfonic acid, and N-heteroaromatic derivatives.
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Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
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39
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Kumar P, Kapur M. Catalyst Control in Positional-Selective C-H Alkenylation of Isoxazoles and a Ruthenium-Mediated Assembly of Trisubstituted Pyrroles. Org Lett 2019; 21:2134-2138. [PMID: 30860851 DOI: 10.1021/acs.orglett.9b00446] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
High levels of catalyst control are demonstrated in determining the positional selectivity in C-H alkenylation of isoxazoles. A cationic rhodium-mediated, strong-directing group promotes C( sp2)-H activation at the proximal aryl ring whereas, the palladium-mediated electrophilic metallation leads to the C( sp2)-H activation at the distal position of the directing group. Synthetic elaboration of this C-H alkenylation product via ruthenium and copper co-catalysis leads to an efficient method for the assembly of densely substituted pyrroles.
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Affiliation(s)
- Pravin Kumar
- Department of Chemistry , Indian Institute of Science Education and Research Bhopal , Bhopal Bypass Road , Bhauri , Bhopal 462066 MP , India
| | - Manmohan Kapur
- Department of Chemistry , Indian Institute of Science Education and Research Bhopal , Bhopal Bypass Road , Bhauri , Bhopal 462066 MP , India
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40
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Sun H, Jiang Y, Chen XW, Zhou Y, Feng T, Huang R, Zheng Y, Li ZH, Liu JK. N
-Acyloxyphthalimide as Multitasking Directing Group for Sequential C-H Functionalization. ChemistrySelect 2019. [DOI: 10.1002/slct.201900201] [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)
- Huan Sun
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
- National Demonstration Center for Experimental Ethnopharmacology Education; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Yue Jiang
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Xiao-Wei Chen
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Yi−Bo Zhou
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Tao Feng
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Rong Huang
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Yongsheng Zheng
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences; South-Central University for Nationalities; Wuhan 430074 P.R. China
- National Demonstration Center for Experimental Ethnopharmacology Education; South-Central University for Nationalities; Wuhan 430074 P.R. China
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41
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Jambu S, Sivasakthikumaran R, Jeganmohan M. Aerobic Oxidative Alkenylation of Weak O-Coordinating Arylacetamides with Alkenes via a Rh(III)-Catalyzed C–H Activation. Org Lett 2019; 21:1320-1324. [DOI: 10.1021/acs.orglett.8b04140] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Subramanian Jambu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | | | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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42
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Yang X, Sun R, Zhang C, Zheng X, Yuan M, Fu H, Li R, Chen H. Iridium-Catalyzed Benzylamine C-H Alkenylation Enabled by Pentafluorobenzoyl as the Directing Group. Org Lett 2019; 21:1002-1006. [PMID: 30730151 DOI: 10.1021/acs.orglett.8b04005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first iridium-catalyzed oxidative alkeynylation of benzylamines with acrylates enabled by a new directing group pentafluorobenzoyl has been developed. The reaction proceeded efficiently in the presence of silver acetate as oxidant and chlorobenzene as solvent. A good range of benzylamines could be selectively monoalkenylated without interfering with further aza-Michael addition. The kinetic isotope effect experiments showed that C-H activation is not the rate-limiting step. In addition, a five-membered iridacycle species was isolated and established as the possible key intermediate.
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Affiliation(s)
- Xiao Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry , Sichuan University Chengdu 610064 , P.R. China
| | - Rui Sun
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry , Sichuan University Chengdu 610064 , P.R. China
| | - Chunchun Zhang
- Analytical & Testing Center , Sichuan University , Chengdu , Sichuan 610064 , P.R. China
| | - Xueli Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry , Sichuan University Chengdu 610064 , P.R. China
| | - Maolin Yuan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry , Sichuan University Chengdu 610064 , P.R. China
| | - Haiyan Fu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry , Sichuan University Chengdu 610064 , P.R. China
| | - Ruixiang Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry , Sichuan University Chengdu 610064 , P.R. China
| | - Hua Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry , Sichuan University Chengdu 610064 , P.R. China
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43
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Hou H, Zhao Y, Pu S, Chen J. Rhodium-catalyzed direct C–H bond alkynylation of aryl sulfonamides with bromoalkynes. Org Biomol Chem 2019; 17:2948-2953. [DOI: 10.1039/c9ob00061e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This protocol selectively provides a straightforward route to prepare ortho-(1-alkynyl) benzenesulfonamides or six-membered benzosultams by using different silyl protected bromoalkynes.
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Affiliation(s)
- Hongcen Hou
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Yongli Zhao
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Nanchang
- P. R. China
| | - Junmin Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
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44
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Sk MR, Bera SS, Maji MS. Cp*Co(III)‐Catalyzed C−H Alkenylation of Aromatic Ketones with Alkenes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801385] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Md Raja Sk
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302, W. B. India
| | - Sourav Sekhar Bera
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302, W. B. India
| | - Modhu Sudan Maji
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302, W. B. India
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45
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Gao J, Zhang S, Zhang Y. Ruthenium-catalyzed annulation of aromatic ketones with internal alkynes: A reliable route to substituted naphthalene derivatives. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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46
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Wang SM, Moku B, Leng J, Qin HL. Rh-Catalyzed Carboxylates Directed C-H Activation for the Synthesis of ortho
-Carboxylic 2-Arylethenesulfonyl Fluorides: Access to Unique Electrophiles for SuFEx Click Chemistry. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800762] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shi-Meng Wang
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
| | - Balakrishna Moku
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
| | - Jing Leng
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
| | - Hua-Li Qin
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
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47
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Guo L, Rueping M. Decarbonylative Cross-Couplings: Nickel Catalyzed Functional Group Interconversion Strategies for the Construction of Complex Organic Molecules. Acc Chem Res 2018; 51:1185-1195. [PMID: 29652129 DOI: 10.1021/acs.accounts.8b00023] [Citation(s) in RCA: 149] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The utilization of carboxylic acid esters as electrophiles in metal-catalyzed cross-coupling reactions is increasingly popular, as environmentally friendly and readily available ester derivatives can be powerful alternatives to the commonly used organohalides. However, key challenges associated with the use of these chemicals remain to be addressed, including the stability of ester substrates and the high energy barrier associated with their oxidative addition to low-valent metal species. Due to recent developments in nickel catalysis that make it easier to perform oxidative additions, chemists have become interested in applying less reactive electrophiles as coupling counterparts in nickel-catalyzed transformations. Hence, our group and others have independently investigated various ester group substitutions and functionalizations enabled by nickel catalysis. Such methods are of great interest as they enable the exchange of ester groups, which can be used as directing groups in metal-catalyzed C-H functionalizations prior to their replacement. Here, we summarize our recent efforts toward the development of nickel-catalyzed decarbonylative cross-coupling reactions of carboxylic esters. Achievements accomplished by other groups in this area are also included. To this day, a number of new transformations have been successfully developed, including decarbonylative arylations, alkylations, cyanations, silylations, borylations, aminations, thioetherifications, stannylations, and hydrogenolysis reactions. These transformations proceed via a nickel-catalyzed decarbonylative pathway and have shown a high degree of reactivity and chemoselectivity, as well as several other unique advantages in terms of substrate availability, due to the use of esters as coupling partners. Although the mechanisms of these reactions have not yet been fully understood, chemists have already provided some important insights. For example, Yamamoto explored the stoichiometric nickel-mediated decarbonylation process of esters and proposed a reaction mechanism involving a C(acyl)-O bond cleavage and a CO extrusion. Key nickel intermediates were isolated and characterized by Shi and co-workers, supporting the assumption of a nickel/ N-heterocyclic carbene-promoted C(acyl)-O bond activation and functionalization. Our combined experimental and computational study of a ligand-controlled chemoselective nickel-catalyzed cross-coupling of aromatic esters with alkylboron reagents provided further insight into the reaction mechanism. We demonstrated that nickel complexes with bidentate ligands favor the C(aryl)-C bond cleavage in the oxidative addition step, resulting in decarbonylative alkylations, while nickel complexes with monodentate phosphorus ligands promote the activation of the C(acyl)-O bond, leading to the production of ketone products. Although more detailed mechanistic investigations need to be undertaken, the successful development of decarbonylative cross-coupling reactions can serve as a solid foundation for future studies. We believe that this type of decarbonylative cross-coupling reactions will be of significant value, in particularly in combination with the retrosynthetic analysis and synthesis of natural products and biologically active molecules. Thus, the presented ester substitution methods will pave the way for successful applications in the construction of complex frameworks by late-stage modification and functionalization of carboxylic acid derivatives.
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Affiliation(s)
- Lin Guo
- Institute of Organic Chemistry, RWTH-Aachen University, Landoltweg 1, 52072 Aachen, Germany
| | - Magnus Rueping
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
- Institute of Organic Chemistry, RWTH-Aachen University, Landoltweg 1, 52072 Aachen, Germany
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48
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Achary R, Jung IA, Lee HK. Tandem Rh-Catalyzed Oxidative C-H Olefination and Cyclization of Enantiomerically Enriched Benzo-1,3-Sulfamidates: Stereoselective Synthesis of trans-1,3-Disubstituted Isoindolines. J Org Chem 2018. [PMID: 29542318 DOI: 10.1021/acs.joc.8b00204] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A tandem process, involving Rh(III)-catalyzed oxidative C-H olefination of enantiomerically enriched 4-aryl-benzo-1,3-sulfamidates and subsequent intramolecular aza-Michael cyclization has been developed. The reaction produces trans-benzosulfamidate-fused-1,3-disubstituted isoindolines as major products, in which the configurational integrity of the stereogenic center in the starting material is preserved. Further transformations of the benzosulfamidate-fused-1,3-disubstituted isoindolines are described.
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Affiliation(s)
- Raghavendra Achary
- Korea Chemical Bank , Korea Research Institute of Chemical Technology , PO Box 107, Yuseong, Daejeon 305-600 , Korea
| | - In-A Jung
- Korea Chemical Bank , Korea Research Institute of Chemical Technology , PO Box 107, Yuseong, Daejeon 305-600 , Korea.,Department of Medicinal Chemistry and Pharmacology , University of Science and Technology , 113 Gwahango , Yuseong, Daejeon 305-333 , Korea
| | - Hyeon-Kyu Lee
- Korea Chemical Bank , Korea Research Institute of Chemical Technology , PO Box 107, Yuseong, Daejeon 305-600 , Korea.,Department of Medicinal Chemistry and Pharmacology , University of Science and Technology , 113 Gwahango , Yuseong, Daejeon 305-333 , Korea
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49
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Zhang C, Song Y, Sang Z, Zhan L, Rao Y. Mixing O-Containing and N-Containing Directing Groups for C-H Activation: A Strategy for the Synthesis of Highly Functionalized 2,2'-Biaryls. J Org Chem 2018; 83:2582-2591. [PMID: 29406735 DOI: 10.1021/acs.joc.7b02863] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A strategy combining O- and N-containing directing groups has been developed for the synthesis of 2,2'-biaryl via Pd-mediated C-H bond activation and oxidative coupling. This new transformation may proceed through a mechanism involving Pd(II) and Pd(IV) intermediates. We found the use of PTSA and HFIP to be critical for the reaction and suggest that these reagents could serve as efficient ligands for this C-C bond formation. This methodology provides broad functional group tolerance, excellent reactivity, and high yields.
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Affiliation(s)
- Chao Zhang
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
| | - Yugang Song
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
| | - Zhihui Sang
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
| | - Lingpeng Zhan
- MOE Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yu Rao
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University , Beijing 100084, P.R. China
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50
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Li SS, Qin L, Dong L. Rhodium-catalyzed C-C coupling reactions via double C-H activation. Org Biomol Chem 2018; 14:4554-70. [PMID: 27099126 DOI: 10.1039/c6ob00209a] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Various rhodium-catalyzed double C-H activations are reviewed. These powerful strategies have been developed to construct C-C bonds, which might be widely embedded in complex aza-fused heterocycles, polycyclic skeletons and heterocyclic scaffolds. In particular, rhodium(iii) catalysis shows good selectivity and reactivity to functionalize the C-H bond, generating reactive organometallic intermediates in most of the coupling reactions. Generally, intermolecular, intramolecular and multi-component coupling reactions via double C-H activations with or without heteroatom-assisted chelation are discussed in this review.
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Affiliation(s)
- Shuai-Shuai Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Liu Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
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