1
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Love BE, Simmons AL. Electronic effects in the oxidation of 1,4-Dimethoxybenzene derivatives with ceric ammonium nitrate. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2095209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Brian E. Love
- Department of Chemistry, East Carolina University, Greenville, NC, USA
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2
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Palladium-Catalyzed Organic Reactions Involving Hypervalent Iodine Reagents. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123900. [PMID: 35745020 PMCID: PMC9230104 DOI: 10.3390/molecules27123900] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/07/2022] [Accepted: 06/11/2022] [Indexed: 01/13/2023]
Abstract
The chemistry of polyvalent iodine compounds has piqued the interest of researchers due to their role as important and flexible reagents in synthetic organic chemistry, resulting in a broad variety of useful organic molecules. These chemicals have potential uses in various functionalization procedures due to their non-toxic and environmentally friendly properties. As they are also strong electrophiles and potent oxidizing agents, the use of hypervalent iodine reagents in palladium-catalyzed transformations has received a lot of attention in recent years. Extensive research has been conducted on the subject of C—H bond functionalization by Pd catalysis with hypervalent iodine reagents as oxidants. Furthermore, the iodine(III) reagent is now often used as an arylating agent in Pd-catalyzed C—H arylation or Heck-type cross-coupling processes. In this article, the recent advances in palladium-catalyzed oxidative cross-coupling reactions employing hypervalent iodine reagents are reviewed in detail.
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3
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Hou X, Kaplaneris N, Yuan B, Frey J, Ohyama T, Messinis AM, Ackermann L. Ruthenaelectro-catalyzed C-H acyloxylation for late-stage tyrosine and oligopeptide diversification. Chem Sci 2022; 13:3461-3467. [PMID: 35432858 PMCID: PMC8943857 DOI: 10.1039/d1sc07267f] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/09/2022] [Indexed: 11/25/2022] Open
Abstract
Ruthenaelectro(ii/iv)-catalyzed intermolecular C-H acyloxylations of phenols have been developed by guidance of experimental, CV and computational insights. The use of electricity bypassed the need for stoichiometric chemical oxidants. The sustainable electrocatalysis strategy was characterized by ample scope, and its unique robustness enabled the late-stage C-H diversification of tyrosine-derived peptides.
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Affiliation(s)
- Xiaoyan Hou
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Nikolaos Kaplaneris
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Binbin Yuan
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Johanna Frey
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Tsuyoshi Ohyama
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Antonis M Messinis
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
- German Center for Cardiovascular Research (DZHK) Potsdamer Straße 58 10785 Berlin Germany
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4
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Urruzuno I, Andrade-Sampedro P, Correa A. Late-Stage C-H Acylation of Tyrosine-Containing Oligopeptides with Alcohols. Org Lett 2021; 23:7279-7284. [PMID: 34477386 PMCID: PMC8453636 DOI: 10.1021/acs.orglett.1c02764] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Indexed: 12/13/2022]
Abstract
The selective tagging of amino acids within a peptide framework while using atom-economical C-H counterparts poses an unmet challenge within peptide chemistry. Herein, we report a novel Pd-catalyzed late-stage C-H acylation of a collection of Tyr-containing peptides with alcohols. This water-compatible labeling technique is distinguished by its reliable scalability and features the use of ethanol as a renewable feedstock for the assembly of a variety of peptidomimetics.
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Affiliation(s)
- Iñaki Urruzuno
- Department
of Organic Chemistry I, University of the
Basque Country (UPV/EHU), Joxe Mari Korta
R&D Center, Avenida Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Paula Andrade-Sampedro
- Department
of Organic Chemistry I, University of the
Basque Country (UPV/EHU), Joxe Mari Korta
R&D Center, Avenida Tolosa 72, 20018 Donostia-San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
| | - Arkaitz Correa
- Department
of Organic Chemistry I, University of the
Basque Country (UPV/EHU), Joxe Mari Korta
R&D Center, Avenida Tolosa 72, 20018 Donostia-San Sebastián, Spain
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5
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Sarkar S, Sahoo T, Sen C, Ghosh SC. Copper(II) mediated ortho C-H alkoxylation of aromatic amines using organic peroxides: efficient synthesis of hindered ethers. Chem Commun (Camb) 2021; 57:8949-8952. [PMID: 34486598 DOI: 10.1039/d1cc01803e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of hindered alkyl aryl ether derivatives (R-O-Ar) remains a huge challenge and highly desirable in organic and medicinal chemistry because extensive substitution on the ether bond prevents the undesired metabolic process and thus avoids rapid degradation in vivo. Herein, we report an unprecedented hindered alkoxylation of picolinamide attached aromatic amines using economic copper salt and organic peroxide to get highly desirable α-tertiary alkyl aryl ethers.
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Affiliation(s)
- Souvik Sarkar
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar-364002, Gujarat, India.
| | - Tapan Sahoo
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar-364002, Gujarat, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Chiranjit Sen
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar-364002, Gujarat, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Subhash Chandra Ghosh
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar-364002, Gujarat, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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6
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Abdolalian P, Tizhoush SK, Farshadfar K, Ariafard A. The role of hypervalent iodine(iii) reagents in promoting alkoxylation of unactivated C(sp 3)-H bonds catalyzed by palladium(ii) complexes. Chem Sci 2021; 12:7185-7195. [PMID: 34123345 PMCID: PMC8153247 DOI: 10.1039/d1sc01230d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/14/2021] [Indexed: 11/21/2022] Open
Abstract
Although Pd(OAc)2-catalysed alkoxylation of the C(sp3)-H bonds mediated by hypervalent iodine(iii) reagents (ArIX2) has been developed by several prominent researchers, there is no clear mechanism yet for such crucial transformations. In this study, we shed light on this important issue with the aid of the density functional theory (DFT) calculations for alkoxylation of butyramide derivatives. We found that the previously proposed mechanism in the literature is not consistent with the experimental observations and thus cannot be operating. The calculations allowed us to discover an unprecedented mechanism composed of four main steps as follows: (i) activation of the C(sp3)-H bond, (ii) oxidative addition, (iii) reductive elimination and (iv) regeneration of the active catalyst. After completion of step (i) via the CMD mechanism, the oxidative addition commences with an X ligand transfer from the iodine(iii) reagent (ArIX2) to Pd(ii) to form a square pyramidal complex in which an iodonium occupies the apical position. Interestingly, a simple isomerization of the resultant five-coordinate complex triggers the Pd(ii) oxidation. Accordingly, the movement of the ligand trans to the Pd-C(sp3) bond to the apical position promotes the electron transfer from Pd(ii) to iodine(iii), resulting in the reduction of iodine(iii) concomitant with the ejection of the second X ligand as a free anion. The ensuing Pd(iv) complex then undergoes the C-O reductive elimination by nucleophilic attack of the solvent (alcohol) on the sp3 carbon via an outer-sphere SN2 mechanism assisted by the X- anion. Noteworthy, starting from the five coordinate complex, the oxidative addition and reductive elimination processes occur with a very low activation barrier (ΔG ‡ 0-6 kcal mol-1). The strong coordination of the alkoxylated product to the Pd(ii) centre causes the regeneration of the active catalyst, i.e. step (iv), to be considerably endergonic, leading to subsequent catalytic cycles to proceed with a much higher activation barrier than the first cycle. We also found that although, in most cases, the alkoxylation reactions proceed via a Pd(ii)-Pd(iv)-Pd(ii) catalytic cycle, the other alternative in which the oxidation state of the Pd(ii) centre remains unchanged during the catalysis could be operative, depending on the nature of the organic substrate.
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Affiliation(s)
- Payam Abdolalian
- Department of Chemistry, Islamic Azad University Central Tehran Branch, Poonak Tehran 1469669191 Iran
| | - Samaneh K Tizhoush
- Department of Chemistry, Islamic Azad University Central Tehran Branch, Poonak Tehran 1469669191 Iran
| | - Kaveh Farshadfar
- Department of Chemistry, Islamic Azad University Central Tehran Branch, Poonak Tehran 1469669191 Iran
| | - Alireza Ariafard
- Department of Chemistry, Islamic Azad University Central Tehran Branch, Poonak Tehran 1469669191 Iran
- School of Natural Sciences - Chemistry, University of Tasmania Private Bag 75 Hobart TAS 7001 Australia
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7
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Lu X, Wan B. Palladium‐Catalyzed C−H Functionalization of Diaryl 1,3,5‐Triazines. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaodong Lu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences 19A Yuquan Road, Shijingshan District Beijing 100049 China
| | - Boshun Wan
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences 19A Yuquan Road, Shijingshan District Beijing 100049 China
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8
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Sun MR, Kang YY, Duan YT, Liu HM. Concise synthesis of 2-methoxyestradiol through C(sp 2)-H methoxylation. Steroids 2020; 162:108697. [PMID: 32682814 DOI: 10.1016/j.steroids.2020.108697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/01/2020] [Accepted: 07/11/2020] [Indexed: 11/28/2022]
Abstract
An efficient and concise synthesis of 2-methoxyestradiol (4) from 17β-estradiol (1) has been achieved in three synthetic steps with a 63.3% overall yield. The key step was the palladium-catalyzed direct C(sp2)-H methoxylation of 2-aryloxypyridines. Using 2-pyridyloxyl as the directing group, Pd(OAc)2 as the catalyst, PhI(OAc)2 as the oxidant and methanol as both the methoxylation reagent and solvent, the methoxy group could be handily installed at the 2-position of 3-(2-pyridoxy) estradiol (2). Subsequently, the pyridyl group could be easily removed by nucleophilic substitution with a methoxy anion after being oxidized to a pyridyl N-oxide by m-chloroperoxybenzoic acid, delivering the target product 2-methoxyestradiol (4) in quantitative yield. In contrast, when the pyridyl directing group was removed by the TfOMe-NaOMe/MeOH system as reported in the literature, TfOMe inevitably methylated the 17-OH of 2-methoxy-3-(2-pyridoxy) estradiol (3). In effect, we have fortuitously found a new method to cleave the pyridyl directing group, which is highly suitable for substrates bearing hydroxy groups.
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Affiliation(s)
- Mo-Ran Sun
- School of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450001, China
| | - Ying-Ying Kang
- School of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450001, China
| | - Yong-Tao Duan
- Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou Children's Hospital, Zhengzhou University, Zhengzhou 450018, China
| | - Hong-Min Liu
- School of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450001, China.
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9
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Shetgaonkar SE, Singh FV. Hypervalent Iodine Reagents in Palladium-Catalyzed Oxidative Cross-Coupling Reactions. Front Chem 2020; 8:705. [PMID: 33134246 PMCID: PMC7553084 DOI: 10.3389/fchem.2020.00705] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/09/2020] [Indexed: 01/12/2023] Open
Abstract
Hypervalent iodine compounds are valuable and versatile reagents in synthetic organic chemistry, generating a diverse array of useful organic molecules. Owing to their non-toxic and environmentally friendly features, these reagents find potential applications in various oxidative functionalization reactions. In recent years, the use of hypervalent iodine reagents in palladium-catalyzed transformations has been widely studied as they are strong electrophiles and powerful oxidizing agents. For instance, extensive work has been carried out in the field of C–H bond functionalization via Pd-catalysis using hypervalent iodine reagents as oxidants. In addition, nowadays, iodine(III) reagents have been frequently employed as arylating agents in Pd-catalyzed C–H arylation or Heck-type cross-coupling reactions. In this review, recent advancements in the area of palladium-catalyzed oxidative cross-coupling reactions using hypervalent iodine reagents are summarized in detail.
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Affiliation(s)
- Samata E Shetgaonkar
- Chemistry Division, School of Advanced Science, Vellore Institute of Technology, Chennai, India
| | - Fateh V Singh
- Chemistry Division, School of Advanced Science, Vellore Institute of Technology, Chennai, India
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10
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Javed E, Guthrie JD, Neu J, Chirayath GS, Huo S. Introducing an α-Keto Ester Functional Group through Pt-Catalyzed Direct C-H Acylation with Ethyl Chlorooxoacetate. ACS OMEGA 2020; 5:8393-8402. [PMID: 32309750 PMCID: PMC7161214 DOI: 10.1021/acsomega.0c00982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
Platinum-catalyzed selective C-H acylation of 2-aryloxypyridines with ethyl chlorooxoacetate provides an efficient way of introducing an α-keto ester functional group. The reaction is oxidant-free, additive-free, and, more significantly, free of any decarbonylative side reactions. The reaction tolerates a variety of substituents from strongly electron-donating to strongly electron-withdrawing groups. Double acylation is feasible for 2-phenoxypyridine and its derivatives with only one substituent at the para position. Although the reaction of 2-(2-methylphenoxy)pyridine with ethyl malonyl chloride did not produce the desired β-keto ester, the reaction with ethyl succinyl chloride proceeded smoothly to give the γ-keto ester. Ethyl chlorooxoacetate is much more reactive than ethyl succinyl chloride in this Pt-catalyzed C-H acylation reaction.
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Affiliation(s)
- Erman Javed
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | | | - Justin Neu
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | - George S. Chirayath
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | - Shouquan Huo
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
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11
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Yun YL, Yang J, Miao YH, Sun J, Wang XJ. Recent advances in Palladium(II)-catalyzed activation of aromatic ring C–H bonds. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.01.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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12
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Kong Y, Wang Z. Nickel‐Catalyzed Reaction of Aryl 2‐Pyridyl Ethers with Silylzinc Chlorides: Silylation of Aryl 2‐Pyridyl Ethers via Cleavage of the Carbon−Oxygen Bond. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900949] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ying‐Ying Kong
- CAS Key Laboratory of Soft Matter Chemistry and Department of ChemistryUniversity of Science and Technology of China, Hefei Anhui 230026 People's Republic of China
| | - Zhong‐Xia Wang
- CAS Key Laboratory of Soft Matter Chemistry and Department of ChemistryUniversity of Science and Technology of China, Hefei Anhui 230026 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 People's Republic of China
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13
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Xu X, Luo J. Transition Metal-Catalyzed Directing-Group-Assisted C-H Activation of Phenols. CHEMSUSCHEM 2019; 12:4601-4616. [PMID: 31418536 DOI: 10.1002/cssc.201901951] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/14/2019] [Indexed: 05/08/2023]
Abstract
Strategies that exploit directing groups to control the site selectivity in the C-H activation of arenes have received much attention during the past two decades. In light of the importance of phenol derivatives in the areas of pharmaceuticals, agrochemicals, and materials science, transition-metal-catalyzed C-H activation of phenols has proven to be an extremely useful tool in organic synthesis. This Minireview summarizes the current state-of-the-art direct C-H activation of phenol derivatives under transition-metal catalysis.
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Affiliation(s)
- Xing Xu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
| | - Junfei Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
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14
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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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15
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Nickel-catalysed C O bond reduction of 2,4,6-triaryloxy-1,3,5-triazines in 2-methyltetrahydrofuran. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Li QL, Li ZY, Wang GW. Palladium-Catalyzed Decarboxylative ortho-Acylation of Anilines with Carbamate as a Removable Directing Group. ACS OMEGA 2018; 3:4187-4198. [PMID: 31458653 PMCID: PMC6641432 DOI: 10.1021/acsomega.8b00441] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 04/04/2018] [Indexed: 05/12/2023]
Abstract
An efficient palladium-catalyzed decarboxylative ortho-acylation of anilines with α-oxocarboxylic acids has been realized by using carbamate as a directing group (DG). The reaction proceeds smoothly with high regioselectivity to afford diverse acylation products of aniline derivatives in moderate to good yields under mild conditions. This transformation exhibits broad substrate scope and highly functional group tolerance. In addition, the employed DG can be easily removed to give the corresponding 2-amino aromatic ketones. Importantly, several transformations of the synthesized ortho-acylated anilines into several synthetically valuable products have been demonstrated for their utilities.
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Affiliation(s)
- Qi-Li Li
- 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
| | - Zhong-Yuan Li
- 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
- E-mail:
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17
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Zeng W, Nukeyeva M, Wang Q, Jiang C. Synthesis of unnatural α-amino acid derivatives via selective o-C–H functionalization. Org Biomol Chem 2018; 16:598-608. [DOI: 10.1039/c7ob02921g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Selective o-C–H functionalization of aryl based amino acids including arylation, alkylation, alkynylation, halogenation, alkoxylation, and acyloxylation were developed.
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Affiliation(s)
- Wanting Zeng
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Moldir Nukeyeva
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Qiumei Wang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Chao Jiang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
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18
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Qiu FC, Xie Q, Guan BT. Palladium-Catalyzed ortho
-Alkoxylation of Tertiary Benzamides: H2
SO4
as an Effective Additive. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700525] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Fang-Cheng Qiu
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Qi Xie
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Bing-Tao Guan
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; Tianjin 300071 China
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19
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Redox-Induced Aromatic C–H Bond Functionalization in Metal Complex Catalysis from the Electrochemical Point of View. INORGANICS 2017. [DOI: 10.3390/inorganics5040070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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20
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Wang L, Yu Y, Yang M, Kuai C, Cai D, Yu J, Cui X. Rhodium‐Catalyzed Synthesis of Multiaryl‐substituted Naphthols via a Removable Directing Group. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700726] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lianhui Wang
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Yunliang Yu
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Mengqi Yang
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Changsheng Kuai
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Dingding Cai
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Jinfeng Yu
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
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21
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Wang L, Yang Z, Yang M, Tian M, Kuai C, Cui X. A Facile Route toOrtho-Hydroxyanilnes through an IrIII-Catalyzed Direct C−H Amidation of 2-Phenoxypyridines. Chem Asian J 2017; 12:2634-2643. [DOI: 10.1002/asia.201701028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/21/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Lianhui Wang
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen Fujian 361021 P. R. China
| | - Zi Yang
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen Fujian 361021 P. R. China
| | - Mengqi Yang
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen Fujian 361021 P. R. China
| | - Miaodou Tian
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen Fujian 361021 P. R. China
| | - Changsheng Kuai
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen Fujian 361021 P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen Fujian 361021 P. R. China
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22
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Peng Z, Yu Z, Li T, Li N, Wang Y, Song L, Jiang C. Catalytic Regioselective C–H Acetoxylation of Arenes Using 4,6-Dimethoxy-1,3,5-triazin-2-yloxy as a Removable/Modifiable Directing Group. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00314] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Zhihua Peng
- Department of Chemistry, China University of Petroleum, Qingdao 266580, People’s Republic of China
| | - Zhi Yu
- Department of Chemistry, China University of Petroleum, Qingdao 266580, People’s Republic of China
| | - Tian Li
- Department of Chemistry, China University of Petroleum, Qingdao 266580, People’s Republic of China
| | - Na Li
- Department of Chemistry, China University of Petroleum, Qingdao 266580, People’s Republic of China
| | - Yilei Wang
- Department of Chemistry, China University of Petroleum, Qingdao 266580, People’s Republic of China
| | - Linhua Song
- Department of Chemistry, China University of Petroleum, Qingdao 266580, People’s Republic of China
| | - Cuiyu Jiang
- Department of Chemistry, China University of Petroleum, Qingdao 266580, People’s Republic of China
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23
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Yang L, Li S, Cai L, Ding Y, Fu L, Cai Z, Ji H, Li G. Palladium-Catalyzed C–H Trifluoroethoxylation of N-Sulfonylbenzamides. Org Lett 2017; 19:2746-2749. [DOI: 10.1021/acs.orglett.7b01103] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Long Yang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shangda Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Lei Cai
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yongzheng Ding
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Lei Fu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zhihua Cai
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Huafang Ji
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology and ‡State Key Laboratory
of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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24
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Le Bras J, Muzart J. Dehydrogenative (Hetero)arene Alkoxylations Triggered by PdII
-Catalyzed C(sp2
)-H Activation and Coordinating Substituent: PdII,III
or PdIV
Complex as Key Intermediate? European J Org Chem 2017. [DOI: 10.1002/ejoc.201601592] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jean Le Bras
- Institut de Chimie Moléculaire de Reims, UMR 7312; CNRS - Université de Reims Champagne-Ardenne; B. P. 1039 51687 Reims Cedex 2 France
| | - Jacques Muzart
- Institut de Chimie Moléculaire de Reims, UMR 7312; CNRS - Université de Reims Champagne-Ardenne; B. P. 1039 51687 Reims Cedex 2 France
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25
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26
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Liu GD, Du CY, Zheng XW, Zhao FY, Liu SJ, Liu T. Theoretical insight into the mechanisms and regioselectivity for the borylation reactions of aryl 2-pyridyl ethers catalyzed by rhodium. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.12.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Lu W, Xu H, Shen Z. Copper-catalyzed aromatic C-H alkoxylation with alcohols under aerobic conditions. Org Biomol Chem 2017; 15:1261-1267. [PMID: 28098319 DOI: 10.1039/c6ob02582j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An efficient protocol for copper-catalyzed aromatic C-H alkoxylation with alcohols has been developed under aerobic conditions. The protocol provides a complementary method to couple arenes and alcohols to furnish aromatic ethers. The advantages of this method are the employment of a cheap Cu(OAc)2 catalyst, oxygen as the terminal oxidant and alcohol as both an alkoxy reagent and a solvent. Notably, the catalytic amount of benzoic acid plays a significant role in this transformation.
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Affiliation(s)
- Wenkui Lu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 DongchuanRoad, Shanghai 200240, China.
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28
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Gao C, Li H, Liu M, Ding J, Huang X, Wu H, Gao W, Wu G. Regioselective C–H chlorination: towards the sequential difunctionalization of phenol derivatives and late-stage chlorination of bioactive compounds. RSC Adv 2017. [DOI: 10.1039/c7ra09939h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Palladium-catalyzed C–H chlorination of phenol derivatives and late-stage chlorination of diflufenican and estrone.
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Affiliation(s)
- Chao Gao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Hongchen Li
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Miaochang Liu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Jinchang Ding
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Xiaobo Huang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Huayue Wu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Wenxia Gao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Ge Wu
- School of Pharmaceutical Science
- Wenzhou Medical University
- Wenzhou 325035
- People's Republic of China
- State Key Laboratory of Structural Chemistry
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29
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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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30
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Palladium-Catalyzed Acylation of Arenes by 1,2,3-Triazole-Directed C-H Activation. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601061] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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31
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Das P, Saha D, Saha D, Guin J. Aerobic Direct C(sp2)-H Hydroxylation of 2-Arylpyridines by Palladium Catalysis Induced with Aldehyde Auto-Oxidation. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01539] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Prasenjit Das
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Debajyoti Saha
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Dibyajyoti Saha
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Joyram Guin
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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32
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Kolle S, Batra S. Pd(OAc)2-catalysed regioselective alkoxylation of aryl (β-carbolin-1-yl)methanones via β-carboline directed ortho-C(sp(2))-H activation of an aryl ring. Org Biomol Chem 2016; 13:10376-85. [PMID: 26324764 DOI: 10.1039/c5ob01500f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Synthesis of (2-alkoxyphenyl)(9H-pyrido[3,4-b]indol-1-yl)methanone via Pd(OAc)2-catalyzed regioselective alkoxylation of aryl (β-carbolin-1-yl) methanones employing β-carboline directed ortho-C(sp(2))-H activation of an aryl ring under oxidative conditions is described.
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Affiliation(s)
- Shivalinga Kolle
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow-226031, UP, India.
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33
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Wang L, Pan L, Huang Y, Chen Q, He M. Palladium-Catalyzed Regioselective C-H Acetoxylation of 2-Aryloxypyridines with 2-Pyridyloxy as a Removable Directing Group. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600508] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Liang Wang
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
| | - Liang Pan
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
| | - Yibo Huang
- Department of Pharmacy; Changzhou Institute of Engineering and Technology; 213164 Changzhou P. R. China
| | - Qun Chen
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
| | - Mingyang He
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
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34
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Tobisu M, Zhao J, Kinuta H, Furukawa T, Igarashi T, Chatani N. Nickel-Catalyzed Borylation of Aryl and Benzyl 2-Pyridyl Ethers: A Method for Converting a Robust ortho
-Directing Group. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600336] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mamoru Tobisu
- Center for Atomic and Molecular Technologies, Graduate School of Engineering; Osaka University; Suita, Osaka 565-0871 Japan
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; Suita, Osaka 565-0871 Japan
| | - Jiangning Zhao
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; Suita, Osaka 565-0871 Japan
| | - Hirotaka Kinuta
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; Suita, Osaka 565-0871 Japan
| | - Takayuki Furukawa
- Department of Applied Chemistry, Faculty of Engineering; Osaka University; Suita, Osaka 565-0871 Japan
| | - Takuya Igarashi
- 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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35
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Yu M, Wang Z, Tian M, Lu C, Li S, Du H. Purinyl N(3)-Directed Palladium-Catalyzed C-H Alkoxylation of N(9)-Arylpurines: A Late-Stage Strategy to Synthesize N(9)-(ortho-Alkoxyl)arylpurines. J Org Chem 2016; 81:3435-42. [PMID: 27015589 DOI: 10.1021/acs.joc.6b00148] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A palladium-catalyzed alkoxylation of N(9)-arylpurines with primary or secondary alcohols has been developed successfully, which is a rare C-H activation reaction of polynitrogenated purines and offers a late-stage strategy to synthesize N(9)-(ortho-alkoxyl)arylpurines. Although there are more than four nitrogen atoms present in the purine moiety, the reaction can be effectively conducted by sterically blocking the N(1) site for catalyst coordination and first employing the purinyl N(3) atom as a directing group.
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Affiliation(s)
- Mingwu Yu
- Faculty of Science, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Zhiqian Wang
- Faculty of Science, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Miao Tian
- Faculty of Science, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Chenghu Lu
- Faculty of Science, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Shunlai Li
- Faculty of Science, Beijing University of Chemical Technology , Beijing 100029, P. R. China
| | - Hongguang Du
- Faculty of Science, Beijing University of Chemical Technology , Beijing 100029, P. R. China
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36
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Pawar GG, Brahmanandan A, Kapur M. Palladium(II)-Catalyzed, Heteroatom-Directed, Regioselective C–H Nitration of Anilines Using Pyrimidine as a Removable Directing Group. Org Lett 2016; 18:448-51. [DOI: 10.1021/acs.orglett.5b03493] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Govind Goroba Pawar
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass
Road, Bhauri, Bhopal 462066, India
| | - Abhilashamole Brahmanandan
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass
Road, Bhauri, Bhopal 462066, India
| | - Manmohan Kapur
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass
Road, Bhauri, Bhopal 462066, India
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37
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Thompson SJ, Thach DQ, Dong G. Cyclic Ether Synthesis via Palladium-Catalyzed Directed Dehydrogenative Annulation at Unactivated Terminal Positions. J Am Chem Soc 2015; 137:11586-9. [PMID: 26322370 DOI: 10.1021/jacs.5b07384] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Here, a palladium-catalyzed functionalization of unactivated sp(3) C-H bonds with internal alcohol nucleophiles is described. Directed by an oxime-masked alcohol, annulation chemoselectively occurs at the β position, leading to a range of aliphatic cyclic ethers with four- to seven-membered rings. Tethered primary, secondary, and tertiary free hydroxyl groups can all react to give the corresponding cyclized products. In addition, benzyl and silyl protected alcohols can also be directly coupled. An sp(3) C-H activation/intramolecular SN2 pathway was proposed.
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Affiliation(s)
- Samuel J Thompson
- Department of Chemistry, University of Texas at Austin , Austin, Texas 78712, United States
| | - Danny Q Thach
- Department of Chemistry, University of Texas at Austin , Austin, Texas 78712, United States
| | - Guangbin Dong
- Department of Chemistry, University of Texas at Austin , Austin, Texas 78712, United States
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38
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Borah AJ, Yan G, Wang L. RhIII-Catalyzed Olefination of 2-Aryloxypyridines Using 2-Pyridyloxyl as the Removable Directing Group. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500530] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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39
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Premi C, Dixit A, Jain N. Palladium-Catalyzed Regioselective Decarboxylative Alkylation of Arenes and Heteroarenes with Aliphatic Carboxylic Acids. Org Lett 2015; 17:2598-601. [DOI: 10.1021/acs.orglett.5b00878] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chanchal Premi
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Ankit Dixit
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Nidhi Jain
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
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40
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Dong J, Liu P, Sun P. Palladium-Catalyzed Aryl C(sp2)–H Bond Hydroxylation of 2-Arylpyridine Using TBHP as Oxidant. J Org Chem 2015; 80:2925-9. [DOI: 10.1021/acs.joc.5b00167] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jiawei Dong
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu
Provincial Key Laboratory of Material Cycle Processes and Pollution
Control, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
| | - Ping Liu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu
Provincial Key Laboratory of Material Cycle Processes and Pollution
Control, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
- Jiangsu
Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu
Provincial Key Laboratory of Material Cycle Processes and Pollution
Control, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
- Jiangsu
Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
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41
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Kinuta H, Tobisu M, Chatani N. Rhodium-Catalyzed Borylation of Aryl 2-Pyridyl Ethers through Cleavage of the Carbon–Oxygen Bond: Borylative Removal of the Directing Group. J Am Chem Soc 2015; 137:1593-600. [DOI: 10.1021/ja511622e] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hirotaka Kinuta
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mamoru Tobisu
- Center
for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, 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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42
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Krylov IB, Vil’ VA, Terent’ev AO. Cross-dehydrogenative coupling for the intermolecular C-O bond formation. Beilstein J Org Chem 2015; 11:92-146. [PMID: 25670997 PMCID: PMC4311763 DOI: 10.3762/bjoc.11.13] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 12/31/2014] [Indexed: 12/11/2022] Open
Abstract
The present review summarizes primary publications on the cross-dehydrogenative C-O coupling, with special emphasis on the studies published after 2000. The starting compound, which donates a carbon atom for the formation of a new C-O bond, is called the CH-reagent or the C-reagent, and the compound, an oxygen atom of which is involved in the new bond, is called the OH-reagent or the O-reagent. Alcohols and carboxylic acids are most commonly used as O-reagents; hydroxylamine derivatives, hydroperoxides, and sulfonic acids are employed less often. The cross-dehydrogenative C-O coupling reactions are carried out using different C-reagents, such as compounds containing directing functional groups (amide, heteroaromatic, oxime, and so on) and compounds with activated C-H bonds (aldehydes, alcohols, ketones, ethers, amines, amides, compounds containing the benzyl, allyl, or propargyl moiety). An analysis of the published data showed that the principles at the basis of a particular cross-dehydrogenative C-O coupling reaction are dictated mainly by the nature of the C-reagent. Hence, in the present review the data are classified according to the structures of C-reagents, and, in the second place, according to the type of oxidative systems. Besides the typical cross-dehydrogenative coupling reactions of CH- and OH-reagents, closely related C-H activation processes involving intermolecular C-O bond formation are discussed: acyloxylation reactions with ArI(O2CR)2 reagents and generation of O-reagents in situ from C-reagents (methylarenes, aldehydes, etc.).
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Affiliation(s)
- Igor B Krylov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Vera A Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Alexander O Terent’ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
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Villuendas P, Serrano E, Urriolabeitia EP. Pd-catalysed ortho-alkoxylation of benzamides N-protected with an iminophosphorane functionality. NEW J CHEM 2015. [DOI: 10.1039/c5nj00189g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mild Pd-catalysed ortho-alkoxylation of benzamides, protected as keto-stabilised iminophosphoranes, with alcohols, is regioselective and tolerates different substituents and alcohols.
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Affiliation(s)
- Pedro Villuendas
- Instituto de Síntesis Química y Catálisis Homogénea
- ISQCH (CSIC-Universidad de Zaragoza)
- 50009 Zaragoza
- Spain
| | - Elena Serrano
- Centro Universitario de la Defensa
- Academia General Militar
- 50090 Zaragoza
- Spain
| | - Esteban P. Urriolabeitia
- Instituto de Síntesis Química y Catálisis Homogénea
- ISQCH (CSIC-Universidad de Zaragoza)
- 50009 Zaragoza
- Spain
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44
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Liu Y, Zhang Y, Huang M, Wan JP. Step economical synthesis of o-aryl benzamides via C–H activation relayed by the in situ installation of directing group: a multicomponent method. RSC Adv 2015. [DOI: 10.1039/c5ra09078d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Multicomponent reactions have been successfully applied as a platform for the step economical C–H activation based synthesis wherein the in situ installation of directing group and the subsequent C–H arylation have been achieved in one-step.
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Affiliation(s)
- Yunyun Liu
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education, College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
| | - Yi Zhang
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education, College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
| | - Meiying Huang
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education, College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
| | - Jie-Ping Wan
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education, College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
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45
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46
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Xu Y, Liu P, Li SL, Sun P. Palladium-Catalyzed ortho-Sulfonylation of 2-Aryloxypyridines and Subsequent Formation of ortho-Sulfonylated Phenols. J Org Chem 2014; 80:1269-74. [DOI: 10.1021/jo5026095] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yinfeng Xu
- Jiangsu
Key Laboratory of Biofunctional Materials, Jiangsu Provincial Key
Laboratory of Material Cycle Processes and Pollution Control, College
of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
| | - Ping Liu
- Jiangsu
Key Laboratory of Biofunctional Materials, Jiangsu Provincial Key
Laboratory of Material Cycle Processes and Pollution Control, College
of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing 210023, China
| | - Shun-Li Li
- Jiangsu
Key Laboratory of Biofunctional Materials, Jiangsu Provincial Key
Laboratory of Material Cycle Processes and Pollution Control, College
of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing 210023, China
| | - Peipei Sun
- Jiangsu
Key Laboratory of Biofunctional Materials, Jiangsu Provincial Key
Laboratory of Material Cycle Processes and Pollution Control, College
of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing 210023, China
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Zhang W, Zhang J, Ren S, Liu Y. Palladium-Catalyzed Aromatic C–H Bond Nitration Using Removable Directing Groups: Regiospecific Synthesis of Substituted o-Nitrophenols from Related Phenols. J Org Chem 2014; 79:11508-16. [DOI: 10.1021/jo502145v] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Wei Zhang
- State Key Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Jian Zhang
- State Key Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Shaobo Ren
- State Key Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Yunkui Liu
- State Key Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
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Li DY, Chen HJ, Liu PN. Rhodium-Catalyzed Oxidative Annulation of Hydrazines with Alkynes Using a Nitrobenzene Oxidant. Org Lett 2014; 16:6176-9. [DOI: 10.1021/ol5030794] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Deng Yuan Li
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Hao Jie Chen
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Pei Nian Liu
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
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Gao T, Sun P. Palladium-catalyzed N-nitroso-directed C-H alkoxylation of arenes and subsequent formation of 2-alkoxy-N-alkylarylamines. J Org Chem 2014; 79:9888-93. [PMID: 25251557 DOI: 10.1021/jo501902d] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A palladium-catalyzed direct ortho-alkoxylation of N-alkyl-N-nitrosoarylamines was developed in which alcohols were used as the alkoxylation reagents and PhI(OAc)2 was employed as the oxidant. The protocol was available for both primary and secondary alcohols. The products were transformed to o-alkoxy-N-alkylanilines expediently by a simple reduction.
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Affiliation(s)
- Tingting Gao
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, College of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210097, China
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