1
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Dupommier D, Vuagnat M, Rzayev J, Roy S, Jubault P, Besset T. Site-Selective Ortho/Ipso C-H Difunctionalizations of Arenes using Thianthrene as a Leaving Group. Angew Chem Int Ed Engl 2024; 63:e202403950. [PMID: 38712851 DOI: 10.1002/anie.202403950] [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: 02/26/2024] [Revised: 04/23/2024] [Accepted: 05/07/2024] [Indexed: 05/08/2024]
Abstract
Site-selective ortho/ipso C-H difunctionalizations of aromatic compounds were designed to afford polyfunctionalized arenes including challenging 1,2,3,4-tetrasubstituted ones (62 examples, up to 97 % yields). To ensure the excellent regioselectivity of the process while keeping high efficiency, an original strategy based on a "C-H thianthenation/Catellani-type reaction" sequence was developed starting from simple arenes. Non-prefunctionalized arenes were first regioselectively converted into the corresponding thianthrenium salts. Then, a palladium-catalyzed, norbornene (NBE)-mediated process allowed the synthesis of ipso-olefinated/ortho-alkylated polyfunctionalized arenes using a thianthrene as a leaving group (revisited Catellani reaction). Pleasingly, using a commercially available norbornene (NBE) and a unique catalytic system, synthetic challenges known for the Catellani reaction with aryl iodides were smoothly and successfully tackled with the "thianthrenium" approach. The protocol was robust (gram-scale reaction) and was widely applied to the two-fold functionalization of various arenes including bio-active compounds. Moreover, a panel of olefins and alkyl halides as coupling partners was suitable. Pleasingly, the "thianthrenium" strategy was successfully further applied to the incorporation of other groups at the ipso (CN/alkyl/H, aryl) and ortho (alkyl, aryl, amine, thiol) positions, showcasing the generality of the process.
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Affiliation(s)
- Dorian Dupommier
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, F-76000, Rouen, France
| | - Martin Vuagnat
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, F-76000, Rouen, France
| | - Javid Rzayev
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, F-76000, Rouen, France
| | - Sourav Roy
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, F-76000, Rouen, France
| | - Philippe Jubault
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, F-76000, Rouen, France
| | - Tatiana Besset
- INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, F-76000, Rouen, France
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2
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Xu X, Jiao L. Stereochemistry of the Reactions between Palladacycle Complexes and Primary Alkyl Iodides. Organometallics 2023. [DOI: 10.1021/acs.organomet.3c00042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Xinyu Xu
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100871, China
| | - Lei Jiao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100871, China
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3
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Ma Z, Sun L, Zhou JS. Catalytic enantioselective alkenylation-heteroarylation of olefins: stereoselective syntheses of 5-7 membered azacycles and oxacycles. Chem Sci 2023; 14:3010-3017. [PMID: 36937582 PMCID: PMC10016361 DOI: 10.1039/d2sc07117g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
Catalytic enantioselective domino alkenylation-heteroarylation of nonconjugated iododienes proceeded with excellent stereoselectivity and broad scope of substrates. The reaction enables stereoselective syntheses of substituted azacycles such as piperidine, pyrrolidine azepine and dihydropyrans carrying new quaternary stereocenters. Mechanistically, C-H bonds of heterocycles were activated by lithium alkoxides via reversible deprotonation, rather than conventional palladium(ii)-assisted metalation processes. Many types of heteroarenes can be used, including not only azoles (such as thiazoles, oxazoles, imidazoles and oxadiazoles), but also nonazoles (thiophene, furan and azine N-oxides).
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Affiliation(s)
- Zhaoming Ma
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Room F312, 2199 Lishui Road, Nanshan District Shenzhen 518055 China
| | - Lantian Sun
- Department of Chemistry, Hong Kong Baptist University 224 Waterloo Road, Kowloon Tong Hong Kong China
| | - Jianrong Steve Zhou
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Room F312, 2199 Lishui Road, Nanshan District Shenzhen 518055 China
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4
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Wang FY, Li YX, Jiao L. Functionalized Cycloolefin Ligand as a Solution to Ortho-Constraint in the Catellani-Type Reaction. J Am Chem Soc 2023; 145:4871-4881. [PMID: 36795897 DOI: 10.1021/jacs.3c00329] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
The Catellani reaction, i.e., the Pd/norbornene (NBE) catalysis, has been evolved into a versatile approach to multisubstituted arenes via the ortho-functionalization/ipso-termination process of a haloarene. Despite significant advances over the past 25 years, this reaction still suffered from an intrinsic limitation in the substitution pattern of haloarene, referred to as "ortho-constraint". When an ortho substituent is absent, the substrate often fails to undergo an effective mono ortho-functionalization process, and either ortho-difunctionalization products or NBE-embedded byproducts predominate. To tackle this challenge, structurally modified NBEs (smNBEs) have been developed, which were proved effective for the mono ortho-aminative, -acylative, and -arylative Catellani reactions of ortho-unsubstituted haloarenes. However, this strategy is incompetent for solving the ortho-constraint in Catellani reactions with ortho-alkylation, and to date there lacks a general solution to this challenging but synthetically useful transformation. Recently, our group developed the Pd/olefin catalysis, in which an unstrained cycloolefin ligand served as a covalent catalytic module to enable the ortho-alkylative Catellani reaction without NBE. In this work, we show that this chemistry could afford a new solution to ortho-constraint in the Catellani reaction. A functionalized cycloolefin ligand bearing an amide group as the internal base was designed, which allowed for mono ortho-alkylative Catellani reaction of iodoarenes suffering from ortho-constraint before. Mechanistic study revealed that this ligand is capable of both accelerating the C-H activation and inhibiting side reactions, which accounts for its superior performance. The present work showcased the uniqueness of the Pd/olefin catalysis as well as the power of rational ligand design in metal catalysis.
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Affiliation(s)
- Feng-Yuan Wang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu-Xiu Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Lei Jiao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
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5
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Recent progress on Catellani reaction. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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6
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Shi Y, Ji CL, Liu C. Palladium-Catalyzed Difunctionalization of Norbornenes via Arylation and Alkynylation. J Org Chem 2023; 88:261-271. [PMID: 36520655 DOI: 10.1021/acs.joc.2c02295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report the first general and practical method for the addition of aryl halides and alkynes to norbornenes with palladium catalysis. Norbornenes have been used as the unsaturated acceptors of aryl and alkynyl groups to construct saturated bridged C-C bonds. The combination of Pd(OAc)2/PCy3HBF4 has been identified as the optimal system promoting difunctionalization of norbornenes via the C-X/C-H bond cleavage and highly selective C(sp3)-C(sp2)/C(sp3)-C(sp) bond formation. Broad substrate scope and excellent functional group tolerance have been achieved to show the high efficiency of this approach. Mechanism studies based on experiments and DFT have been performed to gain insights into the catalytic mechanism.
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Affiliation(s)
- Yijun Shi
- Shandong Lunan Coal Chemical Research Institute of Engineering and Technology, Zaozhuang University, 1 Bei'an Road, Zaozhuang, Shandong277160, China
| | - Chong-Lei Ji
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou310027, China
| | - Chengwei Liu
- School of Chemical Engineering and Technology, Yantai Nanshan University, Longkou, Yantai265713, China.,Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai200444, China
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7
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Buğday N, Khan S, Yaşar S, Bulut F, Boulebd H, Karabıyık H, Karabıyık H, Öz E, Rehman AU, Özdemir İ. Pd-NHC complex catalyzed C-H bond activation reactions of caffeine and 2-isobuthylthiazole. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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8
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Liu J, Lin H, Jiang H, Huang L. Polysubstituted Indole Synthesis via Palladium/Norbornene Cooperative Catalysis of Oxime Esters. Org Lett 2022; 24:484-489. [PMID: 34978457 DOI: 10.1021/acs.orglett.1c03679] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Polysubstituted indoles are prevalent in pharmaceuticals, agrochemicals, and organic materials. Presented herein is the fact that polyfunctionalized indoles can be efficiently constructed from easily accessible oxime esters and aryl iodides, involving a palladium/norbornene synergistic synthesis. The reaction is enabled by a unique class of electrophiles in palladium/norbornene cooperative catalysis, which are oxime esters derived from simple ketone. The broad substrate scope and high functional group tolerance could make this method attractive for the synthesis of polysubstituted indoles.
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Affiliation(s)
- Jiechun Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Haojiang Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Liangbin Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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9
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Wang J, Li L, Wang Z, Liu J, Luan X. Trifunctionalization of aryl iodides via intermolecular C–H acylation/intramolecular C–H alkylation achieved using palladium/norbornene cooperative catalysis. Org Chem Front 2022. [DOI: 10.1039/d2qo00660j] [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
Herein, we describe a palladium/norbornene-catalyzed trifunctionalization of ortho-unsubstituted aryl iodides via a highly chemoselective cascade process involving intermolecular ortho acylation/intramolecular ortho alkylation/ipso alkenylation.
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Affiliation(s)
- Jing Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Linqiang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Zihan Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Jingjing Liu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
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10
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Chen X, Zhu L, Chen D, Gong L. Chiral Indoline‐2‐carboxylic Acid Enables Highly Enantioselective Catellani‐type Annulation with 4‐(Bromomethyl)cyclohexanone. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109771] [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)
- Xin‐Meng Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry University of Science and Technology of China Hefei 230026 China
| | - Ling Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry University of Science and Technology of China Hefei 230026 China
| | - Dian‐Feng Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry University of Science and Technology of China Hefei 230026 China
| | - Liu‐Zhu Gong
- 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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11
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Chen XM, Zhu L, Chen DF, Gong LZ. Chiral Indoline-2-carboxylic Acid Enables Highly Enantioselective Catellani-type Annulation with 4-(Bromomethyl)cyclohexanone. Angew Chem Int Ed Engl 2021; 60:24844-24848. [PMID: 34519147 DOI: 10.1002/anie.202109771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Indexed: 11/11/2022]
Abstract
Chiral indoline-2-carboxylic acid has been identified to enable a highly enantioselective Catellani-type annulation of (hetero)aryl, alkenyl triflate and conjugated vinyl iodides with 4-(bromomethyl)cyclohexanone, directly assembling a diverse range of chiral all-carbon bridged ring systems. Control experiments and DFT calculations suggest that the coordinating orientation of the chiral amino acid to the arylpalladium(II) center allows for high levels of stereochemical control.
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Affiliation(s)
- Xin-Meng Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Ling Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Dian-Feng Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Liu-Zhu Gong
- 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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12
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Dong S, Luan X. Catellani Reaction: An Enabling Technology for Vicinal Functionalization of Aryl Halides by Palladium(0)/Norbornene Cooperative Catalysis. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000600] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sichan Dong
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University Xi'an Shaanxi 710127 China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University Xi'an Shaanxi 710127 China
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13
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Cao L, Hua Y, Cheng HG, Zhou Q. C–H hetero-functionalization of arenes through palladacyclopentane-type intermediates. Org Chem Front 2021. [DOI: 10.1039/d0qo01350a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this review article, we summarized recent advances in C–H hetero-functionalization of arenes through palladacyclopentane-type intermediates.
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Affiliation(s)
- Liming Cao
- Sauvage Center for Molecular Sciences
- Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- 430072 Wuhan
| | - Yu Hua
- Sauvage Center for Molecular Sciences
- Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- 430072 Wuhan
| | - Hong-Gang Cheng
- Sauvage Center for Molecular Sciences
- Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- 430072 Wuhan
| | - Qianghui Zhou
- Sauvage Center for Molecular Sciences
- Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- 430072 Wuhan
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14
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Jeong S, Kim E, Kim M, Hwang YJ, Padhi B, Choi J, Lee Y, Joo JM. Divergent Strategies for the π-Extension of Heteroaryl Halides Using Norbornadiene as an Acetylene Synthon. Org Lett 2020; 22:9670-9676. [DOI: 10.1021/acs.orglett.0c03732] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Siyeon Jeong
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Eunmin Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Minkyu Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Ye Ji Hwang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Birakishore Padhi
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Jonghoon Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Yunho Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jung Min Joo
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
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15
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Abel-Snape X, Whyte A, Lautens M. Synthesis of Aminated Phenanthridinones via Palladium/Norbornene Catalysis. Org Lett 2020; 22:7920-7925. [DOI: 10.1021/acs.orglett.0c02850] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xavier Abel-Snape
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Andrew Whyte
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada
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16
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Pal R, Mukhopadhyay C. Microwave-assisted Carbon-carbon and Carbon-heteroatom Cross-coupling Reactions in Organic Synthesis. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213335607666200310121337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Conventionally, the organic reactions are accomplished by conductive heating with an external
heat source like an oil bath. On the contrary, since its inception, the application of microwave
irradiation is growing as a suitable alternate heating method in organic synthesis. Microwave heating
considerably reduces the reaction time without promoting any side reactions. The fundamental synthetic
organic chemistry majorly deals with transition-metal-catalyzed C–C and C–heteroatom bond
formation reactions. It is one of the most important methods in contemporary chemistry resulting in a
tremendous increment in the applications of these reactions during the last few years. This field has
been acknowledged with a number of Nobel Prizes during the last decade (2001, 2005 and 2010). A
considerable effort has been done on the continuous development of new ligands and catalysts as
well as an increased understanding of the mechanisms for the improvement of the reaction condition.
This review focuses on some of the latest developments in the area of cross-coupling reactions aided
by microwave irradiation.
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Affiliation(s)
- Rammyani Pal
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
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17
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Wang J, Qin C, Lumb JP, Luan X. Regioselective Synthesis of Polyfunctional Arenes by a 4-Component Catellani Reaction. Chem 2020. [DOI: 10.1016/j.chempr.2020.06.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Chen C, Liu L, Sun W, Ding J, Zhu YP, Zhu B. Pd/NBE-catalyzed sequential carbamoylation/olefination of aryl iodides. Org Chem Front 2020. [DOI: 10.1039/d0qo00905a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We present a Pd/NBE-catalyzed sequential carbamoylation/olefination of aryl iodides under mild reaction conditions, which provide diverse 4-methylene-3,4-dihydro-1(2H)-isoquinolin-1-one analogues.
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Affiliation(s)
- Chen Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Liying Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Wan Sun
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Jie Ding
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
| | - Yan-Ping Zhu
- School of Pharmacy
- Key Laboratory of Molecular Pharmacology and Drug Evaluation
- Ministry of Education
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong
- Yantai University
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- P. R. China
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19
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Abstract
This work describes a method for the difunctionalization of aryl iodides to generate polysubstituted arenes via Pd catalysis. The reaction hinges on the unique interplay between norbornene and the metal catalyst to impart a guided ortho C-H alkylation event followed by a programmatic ipso borylation to provide a diverse array of substituted arene products. The utility of this transformation is demonstrated through the functionalization of the boronic ester to a variety of valuable functionalities.
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Affiliation(s)
- Xianwei Sui
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Thiago A Grigolo
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Colin J O'Connor
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Joel M Smith
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
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20
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Li R, Zhou Y, Yoon KY, Dong Z, Dong G. Sulfenamide-enabled ortho thiolation of aryl iodides via palladium/norbornene cooperative catalysis. Nat Commun 2019; 10:3555. [PMID: 31391472 PMCID: PMC6685968 DOI: 10.1038/s41467-019-11398-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 07/12/2019] [Indexed: 11/08/2022] Open
Abstract
Poly-substituted aromatic sulfur compounds are widely found in pharmaceuticals, agrochemicals and organic materials. However, the position that a sulfur moiety can be introduced to is largely restricted to a pre-functionalized site; otherwise, use of electronically biased substrates or auxiliary groups that direct catalysis is required. Here we report a general ortho thiolation of common aryl and heteroaryl iodides via palladium-norbornene cooperative catalysis. Using this approach, an aryl or alky sulfur moiety can be site-selectively introduced at the arene ortho position without using sterically or electronically biased substrates. The arene ipso functionalization is simultaneously achieved through Heck, Suzuki or Sonogashira termination. The reaction is enabled by a unique class of electrophiles in palladium-norbornene cooperative catalysis, which are sulfenamides derived from seven-membered lactams. The broad substrates scope and high chemoselectivity could make this method attractive for synthesis of complex sulfur-containing aromatic compounds.
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Affiliation(s)
- Renhe Li
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Yun Zhou
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Ki-Young Yoon
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA
| | - Zhe Dong
- Merck Center for Catalysis at Princeton University, Princeton, NJ, 08544, USA.
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL, 60637, USA.
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21
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Abstract
Palladium/norbornene cooperative catalysis has emerged as a distinct approach to construct polyfunctionalized arenes from readily available starting materials. This Review provides a comprehensive overview of this field, including the early stoichiometric investigations, catalytic reaction developments, as well as the applications in the syntheses of bioactive compounds and polymers. The section of catalytic reactions is divided into two parts according to the reaction initiation mode: Pd(0)-initiated reactions and Pd(II)-initiated reactions.
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Affiliation(s)
- Jianchun Wang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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22
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Quillen A, Nguyen Q, Neiser M, Lindsay K, Rosen A, Ramirez S, Costan S, Johnson N, Do TD, Rodriguez O, Rivera D, Atesin A, Ateşin TA, Ma L. Palladium-Catalyzed Direct α-C(sp3) Heteroarylation of Ketones under Microwave Irradiation. J Org Chem 2019; 84:7652-7663. [PMID: 31001979 DOI: 10.1021/acs.joc.9b00446] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heteroaryl compounds are valuable building blocks in medicinal chemistry and chemical industry. A palladium-catalyzed direct α-C(sp3) heteroarylation of ketones under microwave irradiation is developed and reported in this study. Under optimized conditions, twenty-eight (28) heteroarylated ketones were prepared in this study to demonstrate the substrate scope of this reaction. The ground-state optimized structure of Pd(0) active catalyst with 2-dicyclohexylphosphino-2',4',6'-triisopropylbiphenyl (XPhos) in toluene, and the products of its reaction with 3-bromopyridine and acetophenone were studied using all-atom density functional theory. This study provided insightful information for palladium catalytic system design to generate heteroaryl compounds.
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Affiliation(s)
- Andrew Quillen
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Quynh Nguyen
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Matthew Neiser
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Kara Lindsay
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Alexander Rosen
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Stephen Ramirez
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Stefana Costan
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Nathan Johnson
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Thuy Donna Do
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
| | - Oscar Rodriguez
- Department of Chemistry , The University of Texas Rio Grande Valley , Edinburg , Texas 78541 , United States
| | - Diego Rivera
- Department of Chemistry , The University of Texas Rio Grande Valley , Edinburg , Texas 78541 , United States
| | - Abdurrahman Atesin
- Department of Chemistry , The University of Texas Rio Grande Valley , Edinburg , Texas 78541 , United States
| | - Tülay Aygan Ateşin
- Department of Chemistry , The University of Texas Rio Grande Valley , Edinburg , Texas 78541 , United States
| | - Lili Ma
- Department of Chemistry & Biochemistry , Northern Kentucky University , Nunn Drive , Highland Heights , Kentucky 41099 , United States
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23
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Cai W, Gu Z. Selective Ortho Thiolation Enabled by Tuning the Ancillary Ligand in Palladium/Norbornene Catalysis. Org Lett 2019; 21:3204-3209. [PMID: 30978028 DOI: 10.1021/acs.orglett.9b00923] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Site-selective introduction of a sulfur group into aromatic compounds is essential and useful in organic, material, and pharmaceutical chemistry. A palladium/norbornene-catalyzed chemoselective ortho thiolation of aryl halides was reported. The selectivity of reductive elimination for C(Ar)-SR bond formation was well controlled by tuning the ancillary ligand in the aryl-NBE palladacycle Pd(IV) intermediate. The reaction showcased good substrate scope: both S-alkyl and S-aryl thiosulfonates were compatible.
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Affiliation(s)
- Wenqiang Cai
- Department of Chemistry, Center for Excellence in Molecular Synthesis, and Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P.R. China
| | - Zhenhua Gu
- Department of Chemistry, Center for Excellence in Molecular Synthesis, and Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , P.R. China
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24
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Zhou PX, Shi S, Wang J, Zhang Y, Li C, Ge C. Palladium/copper-catalyzed decarbonylative heteroarylation of amides via C–N bond activation. Org Chem Front 2019. [DOI: 10.1039/c9qo00106a] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel strategy for the synthesis of 2-arylated oxazole derivatives via palladium/copper-catalyzed decarbonylative heteroarylation of amides via C–N bond activation by ground-state destabilization is reported.
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Affiliation(s)
- Ping-Xin Zhou
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Shuai Shi
- School of Foreign Language
- Xinxiang Medical University
- Xinxiang
- China
| | - Jia Wang
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Yalei Zhang
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Changzheng Li
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Chunpo Ge
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
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25
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Guo L, Xu C, Wu DC, Hu GQ, Zhang HH, Hong K, Chen S, Liu X. Cascade alkylation and deuteration with aryl iodides via Pd/norbornene catalysis: an efficient method for the synthesis of congested deuterium-labeled arenes. Chem Commun (Camb) 2019; 55:8567-8570. [DOI: 10.1039/c9cc03988k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient approach for synthesizing congested deuterium-labeled arenes via cascade alkylation and deuteration with aryl iodides has been disclosed.
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Affiliation(s)
- Lei Guo
- College of Chemistry and Chemical Engineering
- Nanjing Tech. University (Nanjing Tech.)
- Nanjing 211816
- P. R. China
| | - Chen Xu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech. University (Nanjing Tech.)
- Nanjing 211816
- P. R. China
| | - Ding-Chuan Wu
- College of Chemistry and Chemical Engineering
- Nanjing Tech. University (Nanjing Tech.)
- Nanjing 211816
- P. R. China
| | - Guang-Qi Hu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech. University (Nanjing Tech.)
- Nanjing 211816
- P. R. China
| | - Hong-Hai Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech. University (Nanjing Tech.)
- Nanjing 211816
- P. R. China
| | - Kunlun Hong
- Center for Nanophase Materials Sciences
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - Su Chen
- College of Chemistry and Chemical Engineering
- Nanjing Tech. University (Nanjing Tech.)
- Nanjing 211816
- P. R. China
| | - Xiang Liu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech. University (Nanjing Tech.)
- Nanjing 211816
- P. R. China
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26
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Wang Z, Li T, Zhao J, Shi X, Jiao D, Zheng H, Chen C, Zhu B. Expeditious Synthesis of 6-Fluoroalkyl-Phenanthridines via Palladium-Catalyzed Norbornene-Mediated Dehydrogenative Annulation. Org Lett 2018; 20:6640-6645. [PMID: 30350669 DOI: 10.1021/acs.orglett.8b02588] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel palladium-catalyzed, norbornene-mediated intermolecular dehydrogenative annulation approach for the synthesis of 6-fluoroalkyl-phenanthridines from aryl iodides and fluorinated imidoyl chlorides, which are important structural motifs for bioactive molecules, is reported. Fluorinated imidoyl chlorides served as a new type of electrophilic reagent in the Catellani-type reaction, which, in turn, could be readily prepared from various anilines and fluorinated carboxylic acids. Control experiments were carried out to study the mechanism of the reaction. This transformation is scalable and tolerates a broad range of functional groups.
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Affiliation(s)
- Zhuo Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Tongyu Li
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Jinghui Zhao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Xiaonan Shi
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Dequan Jiao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Han Zheng
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Chen Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
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27
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Liu ZS, Gao Q, Cheng HG, Zhou Q. Alkylating Reagents Employed in Catellani-Type Reactions. Chemistry 2018; 24:15461-15476. [PMID: 30016558 DOI: 10.1002/chem.201802818] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Indexed: 12/12/2022]
Abstract
The Catellani reaction is a powerful strategy that allows the expeditious synthesis of highly substituted arenes, which are not easily accessible through traditional transition-metal-catalyzed cross-coupling reactions. This reaction utilizes the synergistic interplay of palladium and norbornene catalysis to facilitate sequential ortho-C-H functionalization and ipso termination of aryl iodides in a single operation. Since pioneering work by the group of Catellani in 1997, and later by the group of Lautens, this chemistry has attracted considerable attention from the synthetic chemistry community. Dramatic progress has been made by a number of groups in the past two decades. In this Minireview, the alkylating reagents employed in this intriguing reaction and the corresponding applications in organic synthesis are summarized; thus complementing existing reviews to inspire future developments.
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Affiliation(s)
- Ze-Shui Liu
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, P.R. China
| | - Qianwen Gao
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, P.R. China
| | - Hong-Gang Cheng
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, P.R. China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, P.R. China.,The Institute for Advanced Studies, Wuhan University, 430072, Wuhan, P.R. China
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28
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Synthesis of N-heterocyclic carbene-PdCl-[(2-Pyridyl)alkyl carboxylate] complexes and their catalytic activities towards arylation of (benzo)oxazoles with aryl bromides. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.07.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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29
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Cheng HG, Zhou Q. Bridgehead-Modified NBEs: A Solution to ortho-Constraint in Catellani-type Reactions. Chem 2018. [DOI: 10.1016/j.chempr.2018.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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30
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Zhao X, Bai J, Zeng F, Xing Y, Zhu R, Huang J. Direct Double Arylation of Bridged Alkenes and Efficient Bis-C-H Alkylation of Benzamides. ChemistrySelect 2018. [DOI: 10.1002/slct.201801801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiaoxia Zhao
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin; China
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University, Tianjin; China
| | - Jinshan Bai
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin; China
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University, Tianjin; China
| | - Fanyun Zeng
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin; China
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University, Tianjin; China
| | - Yufeng Xing
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin; China
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University, Tianjin; China
| | - Ranran Zhu
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin; China
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University, Tianjin; China
| | - Jianhui Huang
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin; China
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University, Tianjin; China
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31
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Dong Z, Lu G, Wang J, Liu P, Dong G. Modular ipso/ ortho Difunctionalization of Aryl Bromides via Palladium/Norbornene Cooperative Catalysis. J Am Chem Soc 2018; 140:8551-8562. [PMID: 29906109 PMCID: PMC6430613 DOI: 10.1021/jacs.8b04153] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Palladium/norbornene (Pd/NBE) cooperative catalysis has emerged as a useful tool for preparing poly substituted arenes; however, its substrate scope has been largely restricted to aryl iodides. While aryl bromides are considered as standard substrates for Pd-catalyzed cross coupling reactions, their use in Pd/NBE catalysis remains elusive. Here we describe the development of general approaches for aryl bromide-mediated Pd/NBE cooperative catalysis. Through careful tuning the phosphine ligands and quenching nucleophiles, ortho amination, acylation and alkylation of aryl bromides have been realized in good efficiency. Importantly, various heteroarene substrates also work well and a wide range of functional groups are tolerated. In addition, the utility of these methods has been demonstrated in sequential cross coupling/ ortho functionalization reactions, consecutive Pd/NBE-catalyzed difunctionalization to construct penta-substituted aromatics and two-step meta functionalization reactions. Moreover, the origin of the ligand effect in ortho amination reactions has been explored through DFT studies. It is expected that this effort would significantly expand the reaction scope and enhance the synthetic potential for Pd/NBE catalysis in preparing complex aromatic compounds.
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Affiliation(s)
- Zhe Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Gang Lu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jianchun Wang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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32
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Complementary site-selectivity in arene functionalization enabled by overcoming the ortho constraint in palladium/norbornene catalysis. Nat Chem 2018; 10:866-872. [DOI: 10.1038/s41557-018-0074-z] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 04/24/2018] [Indexed: 11/08/2022]
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33
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Ma X, Lu A, Ji X, Shi G, Zhang Y. Disilylation of Palladacycles that were Generated through the C−H Activation of Aryl Halides. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800178] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Xiaotian Ma
- School of Chemical Science and Engineering; Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 P. R. China
| | - Ailan Lu
- School of Chemical Science and Engineering; Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 P. R. China
| | - Xiaoming Ji
- School of Chemical Science and Engineering; Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 P. R. China
| | - Guangfa Shi
- School of Chemical Science and Engineering; Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 P. R. China
| | - Yanghui Zhang
- School of Chemical Science and Engineering; Shanghai Key Laboratory of Chemical Assessment and Sustainability; Tongji University; 1239 Siping Road Shanghai 200092 P. R. China
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34
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Ding L, Sui X, Gu Z. Enantioselective Synthesis of Biaryl Atropisomers via Pd/Norbornene-Catalyzed Three-Component Cross-Couplings. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01037] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linlin Ding
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Xianwei Sui
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Zhenhua Gu
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
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35
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Shi G, Shao C, Ma X, Gu Y, Zhang Y. Pd(II)-Catalyzed Catellani-Type Domino Reaction Utilizing Arylboronic Acids as Substrates. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00637] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Guangfa Shi
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Changdong Shao
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xiaotian Ma
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yichao Gu
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yanghui Zhang
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
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36
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Zhang P, Pan S, Chen W, Liu M, Wu H. Palladium-Catalyzed Sequential Heteroarylation/Acylation Reactions of Iodobenzenes: Synthesis of Functionalized Benzo[d]oxazoles. J Org Chem 2018; 83:3354-3360. [DOI: 10.1021/acs.joc.7b03055] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Pingshun Zhang
- Department of Chemistry, Zhejiang University, Yuquan Campus, Hangzhou 310027, China
| | - Shanfei Pan
- Department of Chemistry, Zhejiang University, Yuquan Campus, Hangzhou 310027, China
| | - Wanzhi Chen
- Department of Chemistry, Zhejiang University, Yuquan Campus, Hangzhou 310027, China
| | - Miaochang Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Huayue Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
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37
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Li Y, Yu X, Wang Y, Fu H, Zheng X, Chen H, Li R. Unsymmetrical Pincer N-Heterocyclic Carbene–Nitrogen–Phosphine Chelated Palladium(II) Complexes: Synthesis, Structure, and Reactivity in Direct Csp2–H Arylation of Benzoxazoles. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00005] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yaqiu Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaojun Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yangdiandian Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Haiyan Fu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xueli Zheng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Hua Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Ruixiang Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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38
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Zhang H, Wang HY, Luo Y, Chen C, Cao Y, Chen P, Guo YL, Lan Y, Liu G. Regioselective Palladium-Catalyzed C-H Bond Trifluoroethylation of Indoles: Exploration and Mechanistic Insight. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03220] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hao Zhang
- State
Key Laboratory of Organometallic Chemistry, Center for Excellence
in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai, China, 200032
| | - Hao-Yang Wang
- State
Key Laboratory of Organometallic Chemistry, Center for Excellence
in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai, China, 200032
| | - Yixin Luo
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Chaohuang Chen
- State
Key Laboratory of Organometallic Chemistry, Center for Excellence
in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai, China, 200032
| | - Yimiao Cao
- State
Key Laboratory of Organometallic Chemistry, Center for Excellence
in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai, China, 200032
| | - Pinhong Chen
- State
Key Laboratory of Organometallic Chemistry, Center for Excellence
in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai, China, 200032
| | - Yin-Long Guo
- State
Key Laboratory of Organometallic Chemistry, Center for Excellence
in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai, China, 200032
| | - Yu Lan
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Guosheng Liu
- State
Key Laboratory of Organometallic Chemistry, Center for Excellence
in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling
Road, Shanghai, China, 200032
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39
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Fan X, Gu Z. Palladium/Norbornene-Catalyzed Ortho-Acylation and Ipso-Selenation via C(O)–Se Bond Cleavage: Synthesis of α-Carbonyl Selane. Org Lett 2018; 20:1187-1190. [DOI: 10.1021/acs.orglett.8b00112] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xiaozhong Fan
- Department of Chemistry,
Center for Excellence in Molecular Synthesis, and Hefei National Laboratory
for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Zhenhua Gu
- Department of Chemistry,
Center for Excellence in Molecular Synthesis, and Hefei National Laboratory
for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
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40
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Li R, Dong G. Direct Annulation between Aryl Iodides and Epoxides through Palladium/Norbornene Cooperative Catalysis. Angew Chem Int Ed Engl 2018; 57:1697-1701. [PMID: 29265668 DOI: 10.1002/anie.201712393] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 12/13/2017] [Indexed: 01/13/2023]
Abstract
Herein we report a direct annulation between aryl iodides and epoxides through palladium/norbornene (Pd/NBE) cooperative catalysis. An iso-propyl ester substituted NBE was found to be most efficient to suppress the formation of multiple-NBE-insertion byproducts and affords the desired 2,3-dihydrobenzofuran derivatives in 44-99 % yields. The reaction is scalable and tolerates a range of functional groups. Asymmetric synthesis is realized using an enantiopure epoxide. Application of this method into a concise synthesis of insecticide fufenozide is demonstrated.
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Affiliation(s)
- Renhe Li
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
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41
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Li R, Dong G. Direct Annulation between Aryl Iodides and Epoxides through Palladium/Norbornene Cooperative Catalysis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712393] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Renhe Li
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
| | - Guangbin Dong
- Department of Chemistry; University of Chicago; Chicago IL 60637 USA
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42
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Xu S, Jiang J, Ding L, Fu Y, Gu Z. Palladium/Norbornene-Catalyzed ortho Aliphatic Acylation with Mixed Anhydride: Selectivity and Reactivity. Org Lett 2018; 20:325-328. [DOI: 10.1021/acs.orglett.7b03514] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Shibo Xu
- Department of Chemistry and Hefei National
Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Julong Jiang
- Department of Chemistry and Hefei National
Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Linlin Ding
- Department of Chemistry and Hefei National
Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Yao Fu
- Department of Chemistry and Hefei National
Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Zhenhua Gu
- Department of Chemistry and Hefei National
Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
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43
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Shen Y, Wu XX, Chen S, Xia Y, Liang YM. Synthesis of polyfluoroarene-substituted benzofuran derivatives via cooperative Pd/Cu catalysis. Chem Commun (Camb) 2018; 54:2256-2259. [DOI: 10.1039/c8cc00489g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cooperative Pd/Cu-catalyzed dual C–H bond activation of electron-deficient polyfluoroarenes with aryl halides is developed.
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Affiliation(s)
- Yi Shen
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xin-Xing Wu
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
| | - Si Chen
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yu Xia
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
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44
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Bao X, Wang Q, Zhu J. Palladium-Catalyzed Enantioselective Narasaka-Heck Reaction/Direct C−H Alkylation of Arenes: Iminoarylation of Alkenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705641] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xu Bao
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304; 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304; 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304; 1015 Lausanne Switzerland
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45
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Bao X, Wang Q, Zhu J. Palladium-Catalyzed Enantioselective Narasaka-Heck Reaction/Direct C−H Alkylation of Arenes: Iminoarylation of Alkenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201705641] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xu Bao
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304; 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304; 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304; 1015 Lausanne Switzerland
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46
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Xie F, Xie R, Zhang JX, Jiang HF, Du L, Zhang M. Direct Reductive Quinolyl β-C–H Alkylation by Multispherical Cavity Carbon-Supported Cobalt Oxide Nanocatalysts. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01337] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Feng Xie
- Key Lab of Functional Molecular
Engineering of Guangdong Province, School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Rong Xie
- Key Lab of Functional Molecular
Engineering of Guangdong Province, School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Jia-Xi Zhang
- Key Lab of Functional Molecular
Engineering of Guangdong Province, School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Huan-Feng Jiang
- Key Lab of Functional Molecular
Engineering of Guangdong Province, School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Li Du
- Key Lab of Functional Molecular
Engineering of Guangdong Province, School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Min Zhang
- Key Lab of Functional Molecular
Engineering of Guangdong Province, School of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
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47
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Kim DS, Park WJ, Jun CH. Metal–Organic Cooperative Catalysis in C–H and C–C Bond Activation. Chem Rev 2017; 117:8977-9015. [DOI: 10.1021/acs.chemrev.6b00554] [Citation(s) in RCA: 444] [Impact Index Per Article: 63.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dong-Su Kim
- Department of Chemistry, Yonsei University, 50
Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Woo-Jin Park
- Department of Chemistry, Yonsei University, 50
Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Chul-Ho Jun
- Department of Chemistry, Yonsei University, 50
Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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48
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Pandiri H, Soni V, Gonnade RG, Punji B. Development of (quinolinyl)amido-based pincer palladium complexes: a robust and phosphine-free catalyst system for C–H arylation of benzothiazoles. NEW J CHEM 2017. [DOI: 10.1039/c7nj00452d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Well-defined (quinolinyl)amido-pincer palladium complexes are developed and employed for the catalytic C–H bond arylation of benzothiazoles with aryl iodides, which can be recycled and reused for several cycles.
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Affiliation(s)
- Hanumanprasad Pandiri
- Organometallic Synthesis and Catalysis Group
- Chemical Engineering Division. CSIR–National Chemical Laboratory (CSIR–NCL)
- Pune – 411 008
- India
| | - Vineeta Soni
- Organometallic Synthesis and Catalysis Group
- Chemical Engineering Division. CSIR–National Chemical Laboratory (CSIR–NCL)
- Pune – 411 008
- India
| | - Rajesh G. Gonnade
- Centre for Material Characterization. CSIR–National Chemical Laboratory (CSIR–NCL)
- Pune – 411 008
- India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group
- Chemical Engineering Division. CSIR–National Chemical Laboratory (CSIR–NCL)
- Pune – 411 008
- India
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49
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Lei C, Cao J, Zhou JS. Palladium-Catalyzed Arylation of Ketones and Acetonitrile with Ortho Alkylation of Aryl Rings: De Novo Synthesis of Tetralines and Benzocycloheptenes. Org Lett 2016; 18:6120-6123. [PMID: 27934365 DOI: 10.1021/acs.orglett.6b03130] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Palladium-catalyzed α-arylation reactions of ketones with simultaneous ortho alkylation offer 1,2,3-substituted arenes. The reactions of 1,ω-dihaloalkanes also allow facile construction of medicinally important tetralines and benzocycloheptenes.
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Affiliation(s)
- Chuanhu Lei
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, Singapore 637371
| | - Jiajia Cao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, Singapore 637371
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, Singapore 637371
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50
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Yiğit M, Yiğit B, Gök Y. Synthesis of novel palladium(II) N-heterocyclic carbene complexes and their catalytic activities in the direct C5 arylation reactions. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.07.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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