1
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Weng Y, Zhan X, Zhang Y, Lin W. Palladium-Catalyzed C(sp 2)-H Arylation of Peptides Directed by Aspartic Acid. J Org Chem 2023; 88:2334-2343. [PMID: 36709459 DOI: 10.1021/acs.joc.2c02755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Herein, we report a palladium-catalyzed C(sp2)-H di- or monoarylation of short peptides containing N-terminal benzamide groups using aspartic acid (Asp) as an endogenous directing group. This strategy has the following merits: a broad substrate scope, selective diarylation of peptides, and gram-scale synthesis. Furthermore, this strategy can be successfully utilized to synthesize peptide-peptide conjugates.
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Affiliation(s)
- Yiyi Weng
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xuecheng Zhan
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yiyang Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Wen Lin
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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2
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Jiang F, Xu M, Bei W, Cheng K, Huang L. Palladium-catalyzed native α-amino acid derivative-directed arylation/oxidation of benzylic C-H bonds: synthesis of 5-aryl-1,4-benzodiazepin-2-ones. Chem Commun (Camb) 2022; 58:9638-9641. [PMID: 35938553 DOI: 10.1039/d2cc03266j] [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
A Pd-catalyzed, native α-amino acid derivative-directed benzylic C-H bond arylation/oxidation with aryl iodides was developed. The natural amino acid auxiliary could serve as a desired building block for formation of 5-aryl-1,4-benzodiazepin-2-ones after removal of the trifluoroacetyl protecting group. The bifunctional reaction probably proceeded through a sequential benzylic arylation/oxidation process.
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Affiliation(s)
- Fengxuan Jiang
- Key Laboratory of Alternative Technologies for Fine Chemicals Process, Institute of Applied Chemistry, Shaoxing University, Shaoxing, Zhejiang Province 312000, People's Republic of China.,School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang Province 325035, People's Republic of China.
| | - Menghua Xu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Wenfeng Bei
- Key Laboratory of Alternative Technologies for Fine Chemicals Process, Institute of Applied Chemistry, Shaoxing University, Shaoxing, Zhejiang Province 312000, People's Republic of China
| | - Kai Cheng
- Key Laboratory of Alternative Technologies for Fine Chemicals Process, Institute of Applied Chemistry, Shaoxing University, Shaoxing, Zhejiang Province 312000, People's Republic of China
| | - Lehao Huang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang Province 325035, People's Republic of China.
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3
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Li XH, Gong JF, Song MP. Microwave-Assisted Ruthenium- and Rhodium-Catalyzed Couplings of α-Amino Acid Ester-Derived Phosphinamides with Alkynes. Chem Asian J 2021; 17:e202101158. [PMID: 34846096 DOI: 10.1002/asia.202101158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/25/2021] [Indexed: 12/14/2022]
Abstract
Two different types of new phosphinamide α-amino ester derivatives have been prepared in moderate to high yields via ruthenium(II) and rhodium(III)-catalyzed ortho-C-H functionalization under microwave irradiation. Specifically, the ortho-alkenylated phosphinamides were produced through coupling of phosphinamides containing an α-substituted or α,α-disubstituted α-amino ester with internal alkynes under ruthenium catalysis. In contrast, Ru and the more effective Rh-catalyzed coupling of the α-unsubstituted glycine ester phosphinamide with alkynes resulted in formation of oxidative annulation products, phosphaisoquinolin-1-ones. The developed methods feature the use of easily accessible starting materials, short reaction time, exclusive E-stereoselectivity (for ortho-alkenylation) and good functional group tolerance. The alkenylation reaction was readily scaled up to gram scale. Furthermore, the obtained alkenylated phosphinamide could be transformed into P-containing dipeptides through hydrolysis of the ester group in the catalysis product and subsequent condensation with an α-amino ester.
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Affiliation(s)
- Xue-Hong Li
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Jun-Fang Gong
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, P. R. China
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4
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Wei J, Shao X, Zhao H, Yang H, Qiu S, Zhai H. Palladium-Catalyzed Arylation of C(sp 2)-H Bonds with 2-(1-Methylhydrazinyl)pyridine as the Bidentate Directing Group. ACS OMEGA 2021; 6:25151-25161. [PMID: 34632174 PMCID: PMC8495716 DOI: 10.1021/acsomega.1c02481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Palladium-catalyzed C(sp2)-H arylation of ortho C-H bonds involving 2-(1-methylhydrazinyl)pyridine (MHP) as the directing group has been investigated. The reaction proceeds smoothly under an air atmosphere to generate biaryl derivatives in an environmentally friendly manner while tolerating a wide range of functional groups. Notably, the directing group present in the product could be easily removed under mild reductive conditions.
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Affiliation(s)
- Jian Wei
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Xiaoru Shao
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Hua Zhao
- Institute
of Drug Discovery Technology, QianXuesen Collaborative Research Center
of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Hongjian Yang
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Shuxian Qiu
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Hongbin Zhai
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
- Institute
of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
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5
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Murali K, Machado LA, Carvalho RL, Pedrosa LF, Mukherjee R, Da Silva Júnior EN, Maiti D. Decoding Directing Groups and Their Pivotal Role in C-H Activation. Chemistry 2021; 27:12453-12508. [PMID: 34038596 DOI: 10.1002/chem.202101004] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Indexed: 12/14/2022]
Abstract
Synthetic organic chemistry has witnessed a plethora of functionalization and defunctionalization strategies. In this regard, C-H functionalization has been at the forefront due to the multifarious applications in the development of simple to complex molecular architectures and holds a brilliant prospect in drug development and discovery. Despite been explored tremendously by chemists, this functionalization strategy still enjoys the employment of novel metal catalysts as well metal-free organic ligands. Moreover, the switch to photo- and electrochemistry has widened our understanding of the alternative pathways via which a reaction can proceed and these strategies have garnered prominence when applied to C-H activation. Synthetic chemists have been foraging for new directing groups and templates for the selective activation of C-H bonds from a myriad of carbon-hydrogen bonds in aromatic as well as aliphatic systems. As a matter of fact, by varying the templates and directing groups, scientists found the answer to the challenge of distal C-H bond activation which remained an obstacle for a very long time. These templates have been frequently harnessed for selectively activating C-H bonds of natural products, drugs, and macromolecules decorated with multiple C-H bonds. This itself was a challenge before the commencement of this field as functionalization of a site other than the targeted site could modify and hamper the biological activity of the pharmacophore. Total synthesis and pharmacophore development often faces the difficulty of superfluous reaction steps towards selective functionalization. This obstacle has been solved by late-stage functionalization simply by harnessing C-H bond activation. Moreover, green chemistry and metal-free reaction conditions have seen light in the past few decades due to the rising concern about environmental issues. Therefore, metal-free catalysts or the usage of non-toxic metals have been recently showcased in a number of elegant works. Also, research groups across the world are developing rational strategies for directing group free or non-directed protocols that are just guided by ligands. This review encapsulates the research works pertinent to C-H bond activation and discusses the science devoted to it at the fundamental level. This review gives the readers a broad understanding of how these strategies work, the execution of various metal catalysts, and directing groups. This not only helps a budding scientist towards the commencement of his/her research but also helps a matured mind searching out for selective functionalization. A detailed picture of this field and its progress with time has been portrayed in lucid scientific language with a motive to inculcate and educate scientific minds about this beautiful strategy with an overview of the most relevant and significant works of this era. The unique trait of this review is the detailed description and classification of various directing groups and their utility over a wide substrate scope. This allows an experimental chemist to understand the applicability of this domain and employ it over any targeted substrate.
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Affiliation(s)
- Karunanidhi Murali
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Luana A Machado
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil.,Department of Chemistry, Fluminense Federal University, Niteroi, 24020-141, RJ, Brazil
| | - Renato L Carvalho
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG, Brazil
| | - Leandro F Pedrosa
- Department of Chemistry, Fluminense Federal University, Niteroi, 24020-141, RJ, Brazil
| | - Rishav Mukherjee
- Department of Chemistry IIT Bombay, Powai, Mumbai, 400076, India
| | | | - Debabrata Maiti
- Department of Chemistry IIT Bombay, Powai, Mumbai, 400076, India
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6
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Jeon J, Lee C, Park I, Hong S. Regio- and Stereoselective Functionalization Enabled by Bidentate Directing Groups. CHEM REC 2021; 21:3613-3627. [PMID: 34086390 DOI: 10.1002/tcr.202100117] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 12/15/2022]
Abstract
Chelation-assisted C-H bond and alkene functionalization using bidentate directing groups offers an elegant and versatile approach to overcome regiocontrol issues by allowing the catalyst to come into close proximity with the targeted sites. In this personal account, we highlight our recent works in developing regio- and stereocontrolled functionalizations through transition-metal catalysis enabled by bidentate directing groups. We classify our results into two categories: (1) regioselective alkene functionalization using bidentate directing groups, and (2) asymmetric C-H functionalization using chiral bidentate directing groups. Furthermore, density functional theory studies to elucidate the origin of the regio- and stereoselectivity exerted by bidentate directing groups are discussed.
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Affiliation(s)
- Jinwon Jeon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Changseok Lee
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Inyoung Park
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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7
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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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8
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Tóth BL, Monory A, Egyed O, Domján A, Bényei A, Szathury B, Novák Z, Stirling A. The ortho effect in directed C-H activation. Chem Sci 2021; 12:5152-5163. [PMID: 34163752 PMCID: PMC8179598 DOI: 10.1039/d1sc00642h] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 02/20/2021] [Indexed: 12/12/2022] Open
Abstract
The success of transition metal-catalysed ortho-directed C-H activation is often plagued by the effects of undesirable interactions between the directing group (DG) and other groups introduced into the aromatic core of the substrate. In particular, when these groups are in neighbouring positions, their interactions can affect profoundly the efficacy of the C-H activation by transition metals. In this work we introduce a simple substrate-only-based model to interpret the influence of steric hindrance of a group in ortho position to the DG in directed ortho-C-H bond activation reactions, and coined the term Ortho Effect (OE) for such situations. We consider simple descriptors such as torsion angle and torsional energy to predict and explain the reactivity of a given substrate in directed C-H activation reactions. More than 250 examples have been invoked for the model, and the nature of the ortho effect was demonstrated on a wide variety of structures. In order to guide organic chemists, we set structural and energetic criteria to evaluate a priori the efficiency of the metalation step which is usually the rate-determining event in C-H activations, i.e. we provide a simple and general protocol to estimate the reactivity of a potential substrate in C-H activation. For borderline cases these criteria help set the minimum reaction temperature to obtain reasonable reaction rates. As an example for the practical applicability of the model, we performed synthetic validations via palladium-catalysed 2,2,2-trifluoroethylation reactions in our lab. Furthermore, we give predictions for the necessary reaction conditions for several selected DGs.
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Affiliation(s)
- Balázs L Tóth
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Faculty of Science, Institute of Chemistry, Eötvös Loránd University Pázmány Péter Sétány. 1/A H-1117 Budapest Hungary
| | - Anna Monory
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Faculty of Science, Institute of Chemistry, Eötvös Loránd University Pázmány Péter Sétány. 1/A H-1117 Budapest Hungary
| | - Orsolya Egyed
- Research Centre for Natural Sciences, Eötvös Loránd Research Network Magyar Tudósok Körútja 2 H-1117 Budapest Hungary
| | - Attila Domján
- Research Centre for Natural Sciences, Eötvös Loránd Research Network Magyar Tudósok Körútja 2 H-1117 Budapest Hungary
| | - Attila Bényei
- Department of Physical Chemistry, University of Debrecen Egyetem Tér 1 H-4032 Debrecen Hungary
| | - Bálint Szathury
- Department of Chemistry, University of Cambridge Lensfield Rd Cambridge CB2 1EW UK
| | - Zoltán Novák
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Faculty of Science, Institute of Chemistry, Eötvös Loránd University Pázmány Péter Sétány. 1/A H-1117 Budapest Hungary
| | - András Stirling
- Research Centre for Natural Sciences, Eötvös Loránd Research Network Magyar Tudósok Körútja 2 H-1117 Budapest Hungary
- Department of Chemistry, Eszterházy Károly University Leányka u. 6 H-3300 Eger Hungary
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9
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Ankade SB, Shabade AB, Soni V, Punji B. Unactivated Alkyl Halides in Transition-Metal-Catalyzed C–H Bond Alkylation. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05580] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shidheshwar B. Ankade
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Anand B. Shabade
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Vineeta Soni
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab, Chemical Engineering Division, CSIR−National Chemical Laboratory (CSIR−NCL), Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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10
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Rej S, Ano Y, Chatani N. Bidentate Directing Groups: An Efficient Tool in C-H Bond Functionalization Chemistry for the Expedient Construction of C-C Bonds. Chem Rev 2020; 120:1788-1887. [PMID: 31904219 DOI: 10.1021/acs.chemrev.9b00495] [Citation(s) in RCA: 561] [Impact Index Per Article: 140.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
During the past decades, synthetic organic chemistry discovered that directing group assisted C-H activation is a key tool for the expedient and siteselective construction of C-C bonds. Among the various directing group strategies, bidentate directing groups are now recognized as one of the most efficient devices for the selective functionalization of certain positions due to fact that its metal center permits fine, tunable, and reversible coordination. The family of bidentate directing groups permit various types of assistance to be achieved, such as N,N-dentate, N,O-dentate, and N,S-dentate auxiliaries, which are categorized based on the coordination site. In this review, we broadly discuss various C-H bond functionalization reactions for the formation of C-C bonds with the aid of bidentate directing groups.
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Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
| | - Yusuke Ano
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 560-0871 , Japan
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11
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Garrec J, Cordier M, Frison G, Prévost S. Palladium-Catalyzed C8-Arylation of Naphthalenes through C-H Activation: A Combined Experimental and Computational Study. Chemistry 2019; 25:14441-14446. [PMID: 31478579 DOI: 10.1002/chem.201903500] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 01/06/2023]
Abstract
Herein, a direct C8-arylation reaction of 1-amidonaphthalenes is described. By using diaryliodonium salts as arylating agents, the palladium-catalyzed C-H activation reaction showed perfect C8 regioselectivity and a wide functional group tolerance. In most cases, the desired polyaromatic compounds were isolated in good to excellent yields. To explain the observed regioselectivity, DFT calculations were performed and highlighted the crucial role of the amide directing group. Finally, the utility of this method is showcased by the synthesis of benzanthrone derivatives.
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Affiliation(s)
- Julian Garrec
- Unité Chimie et Procédés, ENSTA, Institut Polytechnique de Paris, 91128, Palaiseau, France
| | - Marie Cordier
- Laboratoire de Chimie Moléculaire, Ecole Polytechnique, CNRS, Institut Polytechnique de Paris, 91128, Palaiseau, France.,Present address: Institut des Sciences Chimiques de Rennes, Université de Rennes, Campus de Baulieu, 35042, Rennes Cedex, France
| | - Gilles Frison
- Laboratoire de Chimie Moléculaire, Ecole Polytechnique, CNRS, Institut Polytechnique de Paris, 91128, Palaiseau, France
| | - Sébastien Prévost
- Laboratoire de Synthèse Organique, Ecole Polytechnique, ENSTA, CNRS, Institut Polytechnique de Paris, 91128, Palaiseau, France
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12
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Elhadi Benhalouche M, Huang HY, Miloudi A, Doucet H, Soulé JF. Reactivity of N-methyl-N-(polyfluorobenzyl)acetamides and N-methyl-N-(polyfluorobenzyl)benzamides in Pd-catalyzed C–H bond arylation. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Beyond Friedel and Crafts: Directed Alkylation of C−H Bonds in Arenes. Angew Chem Int Ed Engl 2019; 58:7202-7236. [DOI: 10.1002/anie.201806629] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/13/2018] [Indexed: 11/07/2022]
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14
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Padmavathi R, Babu SA. Palladium‐Catalyzed 8‐Aminoquinoline‐Aided sp
2
δ
‐C−H Intramolecular Amidation/Annulation: A Route to Tricyclic Quinolones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900109] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rayavarapu Padmavathi
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
| | - Srinivasarao Arulananda Babu
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
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15
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Singh P, Dalal A, Babu SA. Palladium(II)‐Catalyzed Sp
3
/Sp
2
γ
‐ and
δ
‐C‐H Functionalization of Aryl Amines using 5‐Methylisoxazole‐3‐Carboxamide as Directing Group. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900132] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Prabhakar Singh
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
| | - Arup Dalal
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
| | - Srinivasarao Arulananda Babu
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
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16
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Kumar DR, Gopi Krishna Reddy A, Satyanarayana G. Palladium-Catalyzed Hydroxy Group Directed Regioselective Mono-arylation of 2-Hydroxybiphenyls to 2-Hydroxy to ortho
-Terphenyls. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801637] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Devarapalli Ravi Kumar
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi, Sangareddy Telangana - 502285 INDIA
| | - Alavala Gopi Krishna Reddy
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi, Sangareddy Telangana - 502285 INDIA
| | - Gedu Satyanarayana
- Department of Chemistry; Indian Institute of Technology Hyderabad; Kandi, Sangareddy Telangana - 502285 INDIA
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17
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Samanta PK, Biswas P. Palladium Catalyzed Regioselective Synthesis of Substituted Biaryl Amides through Decarbonylative Arylation of Phthalimides. J Org Chem 2019; 84:3968-3976. [PMID: 30832471 DOI: 10.1021/acs.joc.8b03157] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Partha Kumar Samanta
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711 103, India
| | - Papu Biswas
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711 103, India
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18
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Chowdhury S, Vaishnav R, Panwar N, Haq W. Regioselective β-Csp 3-Arylation of β-Alanine: An Approach for the Exclusive Synthesis of Diverse β-Aryl-β-amino Acids. J Org Chem 2019; 84:2512-2522. [PMID: 30714366 DOI: 10.1021/acs.joc.8b02887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An approach for the synthesis of a variety of new β-aryl-β-amino acids has been developed via a palladium-catalyzed auxiliary-directed regioselective Csp3-H arylation of the unactivated β-methylene bond of β-alanine. The use of 8-aminoquinoline amide as an auxiliary efficiently directs the desired regioselective β-Csp3-H functionalization. The developed protocol enables the easy and straightforward access to several high-value β-aryl-β-amino acids useful for peptide engineering, starting from inexpensive and readily available β-alanine precursors in moderate to excellent yields.
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Affiliation(s)
- Sushobhan Chowdhury
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India
| | - Roopal Vaishnav
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India
| | - Namita Panwar
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India
| | - Wahajul Haq
- Medicinal and Process Chemistry Division , CSIR-Central Drug Research Institute , Lucknow - 226031 , India.,Academy of Scientific and Innovative Research , New Delhi 11000 , India
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19
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Evano G, Theunissen C. Jenseits von Friedel und Crafts: dirigierte Alkylierung von C‐H‐Bindungen in Arenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201806629] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie OrganiqueService de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
| | - Cédric Theunissen
- Laboratoire de Chimie OrganiqueService de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
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20
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Large B, Gigant N, Joseph D, Clavier G, Prim D. Site-Selective Arylation of Naphthalenes: a Key Entry towards Extended Fluorenones and Phenanthridinones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Benjamin Large
- ILV; UVSQ; CNRS; Université Paris-Saclay; 78035 Versailles France
| | - Nicolas Gigant
- BioCIS; Université Paris-Sud, CNRS; Université Paris-Saclay; 92296 Châtenay-Malabry France
| | - Delphine Joseph
- BioCIS; Université Paris-Sud, CNRS; Université Paris-Saclay; 92296 Châtenay-Malabry France
| | - Gilles Clavier
- PPSM; CNRS; ENS Paris-Saclay; Université Paris-Saclay; 94235 Cachan France
| | - Damien Prim
- ILV; UVSQ; CNRS; Université Paris-Saclay; 78035 Versailles France
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21
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Cong Z, Gao F, Liu H. Ni(ii)-catalyzed mono-selective ortho-arylation of unactivated aryl C–H bonds utilizing amino acids as a directing group. RSC Adv 2019; 9:10820-10824. [PMID: 35515296 PMCID: PMC9062466 DOI: 10.1039/c9ra00749k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/27/2019] [Indexed: 12/12/2022] Open
Abstract
The nickel(ii)-catalyzed ortho-arylation of unactivated C–H bonds utilizing amino acids as directing groups with aryl iodides or bromides as coupling electrophiles is described.
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Affiliation(s)
- Zhanqing Cong
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
| | - Feng Gao
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
| | - Hong Liu
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
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22
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Jing K, Wang XN, Wang GW. Diastereoselective Synthesis of Oxazoloisoindolinones via Cascade Pd-Catalyzed ortho-Acylation of N-Benzoyl α-Amino Acid Derivatives and Subsequent Double Intramolecular Cyclizations. J Org Chem 2018; 84:161-172. [DOI: 10.1021/acs.joc.8b02509] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kun Jing
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Xiang-Nan Wang
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guan-Wu Wang
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
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23
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Thorat VH, Upadhyay NS, Cheng CH. Nickel-Catalyzed Denitrogenativeortho-Arylation of Benzotriazinones with Organic Boronic Acids: an Efficient Route to Losartan and Irbesartan Drug Molecules. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800923] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | - Chien-Hong Cheng
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
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24
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Sharma N, Bahadur V, Sharma UK, Saha D, Li Z, Kumar Y, Colaers J, Singh BK, Van der Eycken EV. Microwave-Assisted Ruthenium-Catalysed ortho
-C−H Functionalization of N
-Benzoyl α
-Amino Ester Derivatives. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800458] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Nandini Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
| | - Vijay Bahadur
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
- Bioorganic laboratory; Department of Chemistry; University of Delhi; Delhi- 110007 India
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
| | - Debasmita Saha
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
| | - Yogesh Kumar
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
- Bioorganic laboratory; Department of Chemistry; University of Delhi; Delhi- 110007 India
| | - Jona Colaers
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
| | - Brajendra K Singh
- Bioorganic laboratory; Department of Chemistry; University of Delhi; Delhi- 110007 India
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F, B- 3001 Leuven Belgium
- Peoples Friendship University of Russia; (RUDN University); Miklukho-Maklaya street 6 117198 Moscow Russia
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25
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Shao LY, Xing LH, Guo Y, Yu KK, Wang W, Liu HW, Liao DH, Ji YF. Catalytic Cascade Access to Biaryl-2-Methyl Acetates from PyruvateO-Arylmethyl Ketoximesviathe Palladium-Catalyzed C(sp2)H Bond Arylation and C−O Bond Solvolysis. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ling-Yan Shao
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Li-Hao Xing
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Ying Guo
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Kun-Kun Yu
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Wei Wang
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
- Department of Chemistry & Chemical Biology; University of New Mexico; MSC03 2060 Albuquerque NM 87131-0001 USA
| | - Hong-Wei Liu
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Dao-Hua Liao
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Ya-Fei Ji
- School of Pharmacy; East China University of Science & Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
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26
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Zheng Y, Song W, Zhu Y, Wei B, Xuan L. Pd-catalyzed intramolecular C(sp2)–H amination of phenylalanine moieties in dipeptides: synthesis of indoline-2-carboxylate-containing dipeptides. Org Biomol Chem 2018; 16:2402-2405. [DOI: 10.1039/c8ob00207j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Indoline-2-carboxylate-containing dipeptides were synthesized from dipeptides via Pd-catalyzed intramolecular C–H amination.
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Affiliation(s)
- Yong Zheng
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Weibin Song
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Yefu Zhu
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Bole Wei
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Lijiang Xuan
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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27
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Su L, Guo DD, Li B, Guo SH, Pan GF, Gao YR, Wang YQ. Palladium-Catalyzed Direct Monoarylation of Aryl C−H Bonds with Iodoarenes. ChemCatChem 2017. [DOI: 10.1002/cctc.201700138] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Li Su
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R.China)
| | - Dong-Dong Guo
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R.China)
| | - Bin Li
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R.China)
| | - Shi-Huan Guo
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R.China)
| | - Gao-Fei Pan
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R.China)
| | - Ya-Ru Gao
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R.China)
| | - Yong-Qiang Wang
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of Ministry of Education; Department of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R.China)
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28
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Reddy MD, Blanton AN, Watkins EB. Palladium-Catalyzed, N-(2-Aminophenyl)acetamide-Assisted Ortho-Arylation of Substituted Benzamides: Application to the Synthesis of Urolithins B, M6, and M7. J Org Chem 2017; 82:5080-5095. [DOI: 10.1021/acs.joc.7b00256] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- M. Damoder Reddy
- Department of Pharmaceutical
Sciences, College of Pharmacy, Union University, Jackson, Tennessee 38305, United States
| | - Alexandra N. Blanton
- Department of Pharmaceutical
Sciences, College of Pharmacy, Union University, Jackson, Tennessee 38305, United States
| | - E. Blake Watkins
- Department of Pharmaceutical
Sciences, College of Pharmacy, Union University, Jackson, Tennessee 38305, United States
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29
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Zhu Y, Chen X, Yuan C, Li G, Zhang J, Zhao Y. Pd-catalysed ligand-enabled carboxylate-directed highly regioselective arylation of aliphatic acids. Nat Commun 2017; 8:14904. [PMID: 28383026 PMCID: PMC5384235 DOI: 10.1038/ncomms14904] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/10/2017] [Indexed: 11/09/2022] Open
Abstract
α-amino acids bearing aromatic side chains are important synthetic units in the synthesis of peptides and natural products. Although various β-C-H arylation methodologies for amino acid derivatives involving the assistance of directing groups have been extensively developed, syntheses that directly employ N-protected amino acids as starting materials remain rare. Herein, we report an N-acetylglycine-enabled Pd-catalysed carboxylate-directed β-C(sp3)-H arylation of aliphatic acids. In this way, various non-natural amino acids can be directly prepared from phthaloylalanine in one step in good to excellent yields. Furthermore, a series of aliphatic acids have been shown to be amenable to this transformation, affording β-arylated propionic acid derivatives in moderate to good yields. More importantly, this ligand-enabled direct β-C(sp3)-H arylation could be easily scaled-up to 10 g under reflux conditions, highlighting the potential utility of this synthetic method.
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Affiliation(s)
- Yan Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xiaolan Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Chunchen Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Guobao Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jingyu Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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30
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Jiang J, Zhang WM, Dai JJ, Xu J, Xu HJ. Visible-Light-Promoted C-H Arylation by Merging Palladium Catalysis with Organic Photoredox Catalysis. J Org Chem 2017; 82:3622-3630. [PMID: 28303717 DOI: 10.1021/acs.joc.7b00140] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The use of a dual palladium/organic photoredox catalytic system enables the directed arylation of arenes with aryldiazonium salts with a broad substrate scope at room temperature under mild reaction conditions. This study thus serves as not only an alternative route for the biaryl motifs but also a new example for the application of an organic photoredox catalyst.
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Affiliation(s)
- Jian Jiang
- School of Biological and Medical Engineering, Hefei University of Technology , Hefei 230009, China
| | - Wen-Man Zhang
- School of Biological and Medical Engineering, Hefei University of Technology , Hefei 230009, China
| | - Jian-Jun Dai
- School of Biological and Medical Engineering, Hefei University of Technology , Hefei 230009, China
| | - Jun Xu
- School of Biological and Medical Engineering, Hefei University of Technology , Hefei 230009, China
| | - Hua-Jian Xu
- School of Biological and Medical Engineering, Hefei University of Technology , Hefei 230009, China
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31
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Li S, Zhu W, Gao F, Li C, Wang J, Liu H. Palladium-Catalyzed Ortho-Alkoxylation of N-Benzoyl α-Amino Acid Derivatives at Room Temperature. J Org Chem 2016; 82:126-134. [PMID: 27935311 DOI: 10.1021/acs.joc.6b02257] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient palladium-catalyzed ortho-alkoxylation of N-benzoyl α-amino acid derivatives at room temperature has been explored. This novel transformation, using amino acids as directing groups, Pd(OAc)2 as catalyst, alcohols as the alkoxylation reagents, and PhI(OAc)2 as the oxidant, showed wide generality, good functional tolerance, and high monoselectivity and regioselectivity.
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Affiliation(s)
- Shuangjie Li
- School of Pharmacy, China Pharmaceutical University , Jiangsu Nanjing 210009, P. R. China
| | - Wei Zhu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, P. R. China
| | - Feng Gao
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, P. R. China
| | - Chunpu Li
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, P. R. China
| | - Jiang Wang
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, P. R. China
| | - Hong Liu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, P. R. China
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32
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Reddy C, Bisht N, Parella R, Babu SA. 4-Amino-2,1,3-benzothiadiazole as a Removable Bidentate Directing Group for the Pd(II)-Catalyzed Arylation/Oxygenation of sp2/sp3 β-C–H Bonds of Carboxamides. J Org Chem 2016; 81:12143-12168. [DOI: 10.1021/acs.joc.6b01831] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chennakesava Reddy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector
81, SAS Nagar, Knowledge City, Mohali, Punjab 140306, India
| | - Narendra Bisht
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector
81, SAS Nagar, Knowledge City, Mohali, Punjab 140306, India
| | - Ramarao Parella
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector
81, SAS Nagar, Knowledge City, Mohali, Punjab 140306, India
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector
81, SAS Nagar, Knowledge City, Mohali, Punjab 140306, India
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33
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Yu X, Yao W, Wan H, Xu Z, Wang D. Pd(TFA)2-catalyzed oxidative coupling of anilides with olefins through CH bond activation under non-acidic conditions. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.08.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Gao F, Zhu W, Zhang D, Li S, Wang J, Liu H. Nickel-Catalyzed ortho-C-H Thiolation of N-Benzoyl α-Amino Acid Derivatives. J Org Chem 2016; 81:9122-9130. [DOI: 10.1021/acs.joc.6b01702] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Feng Gao
- CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Wei Zhu
- CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Dengyou Zhang
- CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Shuangjie Li
- CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Jiang Wang
- CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Hong Liu
- CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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35
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Li Q, Li Y, Hu W, Hu R, Li G, Lu H. Cobalt-Catalyzed C(sp2)−H Methylation by using Dicumyl Peroxide as both the Methylating Reagent and Hydrogen Acceptor. Chemistry 2016; 22:12286-9. [DOI: 10.1002/chem.201602445] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Qun Li
- Institute of Chemistry & BioMedical Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing China
| | - Yanrong Li
- Institute of Chemistry & BioMedical Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing China
| | - Weipeng Hu
- Institute of Chemistry & BioMedical Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing China
| | - Renjian Hu
- Institute of Chemistry & BioMedical Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing China
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing China
- Department of Chemistry and Biochemistry; Texas Tech University; Lubbock TX 79409-1061 USA
| | - Hongjian Lu
- Institute of Chemistry & BioMedical Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing China
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36
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Bolbat E, Wendt OF. Ligand Control in Selective C-H Oxidative Functionalization Using Pd-PEPPSI-Type Complexes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600322] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ekaterina Bolbat
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 22100 Lund Sweden
| | - Ola F. Wendt
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 22100 Lund Sweden
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37
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Liu W, Wang D, Zhao Y, Yi F, Chen J. Palladium-Catalyzed Mono-SelectiveorthoCH Arylation of Aryl Sulfonamides in Water: A Concise Access to Biaryl Sulfoamide Derivatives. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501104] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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38
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Non-coordinating-Anion-Directed Reversal of Activation Site: Selective C−H Bond Activation ofN-Aryl Rings. Chemistry 2016; 22:8663-8. [DOI: 10.1002/chem.201600293] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/07/2022]
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39
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Kubo T, Chatani N. Dicumyl Peroxide as a Methylating Reagent in the Ni-Catalyzed Methylation of Ortho C–H Bonds in Aromatic Amides. Org Lett 2016; 18:1698-701. [DOI: 10.1021/acs.orglett.6b00658] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Teruhiko Kubo
- 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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40
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Luo J, Preciado S, Araromi SO, Larrosa I. A Domino Oxidation/Arylation/Protodecarboxylation Reaction of Salicylaldehydes: Expanded Access to meta-Arylphenols. Chem Asian J 2016; 11:347-50. [PMID: 26097094 PMCID: PMC4744983 DOI: 10.1002/asia.201500506] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Indexed: 12/17/2022]
Abstract
A method that allows salicylaldehydes to be efficiently transformed into meta-arylated phenol derivatives through a cascade oxidation/arylation/protodecarboxylation sequence is presented. We demonstrate that the aldehyde functional group can be used as a convenient removable directing group to control site selectivity in C-H activation. Aldehydes are easily introduced into the starting materials and the group is readily cleaved after the C-H functionalization event.
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Affiliation(s)
- Junfei Luo
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- School of Biological and Chemical Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Sara Preciado
- School of Biological and Chemical Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Solomon Olatokunbo Araromi
- School of Biological and Chemical Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Igor Larrosa
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
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41
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Xiong B, Zhang S, Jiang H, Zhang M. Hydrogen-Transfer-Mediated Direct β-Alkylation of Aryl-1,8-naphthyridines with Alcohols under Transition Metal Catalyst Free Conditions. Org Lett 2016; 18:724-7. [DOI: 10.1021/acs.orglett.5b03699] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Biao Xiong
- School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, People’s Republic of China
| | - Shudi Zhang
- School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, People’s Republic of China
| | - Huanfeng Jiang
- School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, People’s Republic of China
| | - Min Zhang
- School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, People’s Republic of China
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42
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Uemura T, Yamaguchi M, Chatani N. Phenyltrimethylammonium Salts as Methylation Reagents in the Nickel-Catalyzed Methylation of C−H Bonds. Angew Chem Int Ed Engl 2016; 55:3162-5. [DOI: 10.1002/anie.201511197] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Indexed: 12/31/2022]
Affiliation(s)
- Takeshi Uemura
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Mao Yamaguchi
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
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43
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Uemura T, Yamaguchi M, Chatani N. Phenyltrimethylammonium Salts as Methylation Reagents in the Nickel-Catalyzed Methylation of C−H Bonds. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511197] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Takeshi Uemura
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Mao Yamaguchi
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
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44
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Selvakumar J, Grandhi GS, Sahoo H, Baidya M. Copper-mediated etherification of arenes with alkoxysilanes directed by an (2-aminophenyl)pyrazole group. RSC Adv 2016. [DOI: 10.1039/c6ra18861c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
(2-Aminophenyl)pyrazole directed copper mediated C–H etherification of (hetero)arenes is described.
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Affiliation(s)
- Jayaraman Selvakumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
- India
| | - Gowri Sankar Grandhi
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
- India
| | - Harekrishna Sahoo
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
- India
| | - Mahiuddin Baidya
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
- India
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45
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Laidaoui N, He M, El Abed D, Soulé JF, Doucet H. Reactivity of (poly)fluorobenzamides in palladium-catalysed direct arylations. RSC Adv 2016. [DOI: 10.1039/c6ra12165a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Under PdCl2/PivOK as reaction conditions, fluoro substituents act as better directing groups than amides in the palladium-catalysed direct arylations.
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Affiliation(s)
- Nouria Laidaoui
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
| | - Mian He
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
| | - Douniazad El Abed
- Laboratoire de Chimie Fine
- Département de Chimie, Faculté des Sciences Exactes et Appliquées
- Université d'Oran 1 Ahmed BenBella
- Oran 31100
- Algeria
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
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46
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Guan M, Pang Y, Zhang J, Zhao Y. Pd-Catalyzed sequential β-C(sp3)–H arylation and intramolecular amination of δ-C(sp2)–H bonds for synthesis of quinolinones via an N,O-bidentate directing group. Chem Commun (Camb) 2016; 52:7043-6. [DOI: 10.1039/c6cc02865a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An effective protocol for the synthesis of quinolinone derivatives by palladium-catalyzed sequential β-C(sp3)–H arylation and selective intramolecular C(sp2)–H/N–H amination is developed.
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Affiliation(s)
- Mingyu Guan
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Yubo Pang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Jingyu Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science Soochow University
- Suzhou 215123
- China
| | - Yingsheng Zhao
- College of Physics
- Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou 215006
- China
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47
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Cheng X, Chen Z, Gao Y, Xue F, Jiang C. Aminoquinoline-assisted vinylic C–H arylation of unsubstituted acrylamide for the selective synthesis of Z olefins. Org Biomol Chem 2016; 14:3298-306. [DOI: 10.1039/c6ob00164e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A method for Pd-catalyzed, aminoquinoline-directed arylation of vinylic C–H bonds with aryl iodides has been developed. This reaction represents a rare example of Pd-catalyzed vinylic C–H functionalization of unsubstituted acrylamide, allowing for preparation of Z-olefins.
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Affiliation(s)
- Xiuzhi Cheng
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Zhen Chen
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Yadong Gao
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Fengtian Xue
- Department of Pharmaceutical Sciences
- University of Maryland School of Pharmacy
- Baltimore
- USA
| | - Chao Jiang
- Department of Pharmaceutical Engineering
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- China
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48
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Ravi Kumar D, Satyanarayana G. Domino Oxidative [Pd]-Catalysis: One-Pot Synthesis of Fluorenones Starting from Simple Benzylamines and Iodo Arenes. Org Lett 2015; 17:5894-7. [DOI: 10.1021/acs.orglett.5b03077] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Devarapalli Ravi Kumar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502 285, India
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502 285, India
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49
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Kim J, Sim M, Kim N, Hong S. Asymmetric C-H functionalization of cyclopropanes using an isoleucine-NH 2 bidentate directing group. Chem Sci 2015; 6:3611-3616. [PMID: 29511524 PMCID: PMC5659170 DOI: 10.1039/c5sc01137j] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 04/16/2015] [Indexed: 12/19/2022] Open
Abstract
The systematic investigation of substrate-bound α-amino acid auxiliaries has resulted in catalytic asymmetric C-H functionalization of cyclopropanes enabled by amino acid amides as chiral bidentate directing groups. The use of an Ile-NH2 auxiliary embedded in the substrate provided excellent levels of asymmetric induction (diastereomeric ratio of up to 72 : 1) in the Pd(ii)-catalyzed β-methylene C(sp3)-H bond activation of cyclopropanes and cross-coupling with aryl iodides.
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Affiliation(s)
- Jinhee Kim
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon , 305-701 , Korea
- Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon , 305-701 , Korea .
| | - Mikyung Sim
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon , 305-701 , Korea
- Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon , 305-701 , Korea .
| | - Namhoon Kim
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon , 305-701 , Korea
- Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon , 305-701 , Korea .
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalization , Institute for Basic Science (IBS) , Daejeon , 305-701 , Korea .
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon , 305-701 , Korea
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50
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Wang Y, Zhou K, Lan Q, Wang XS. Pd(II)-catalyzed C-H arylation of aryl and benzyl Weinreb amides. Org Biomol Chem 2015; 13:353-6. [PMID: 25380404 DOI: 10.1039/c4ob02039a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The first example of palladium-catalyzed ortho-C-H arylation of aryl and benzyl Weinreb amides was developed, in which HOTf was used as a key promoter. This method exhibits good functional group tolerance, a broad substrate scope of both Weinreb amides and aryl iodides, high mono-selectivity and mild reaction conditions.
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Affiliation(s)
- Yan Wang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
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