1
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Jiang M, Yu L, Zou C, Yuan H, Xu M, Chen B, Hu P, Wang BQ, Cao P. Nickel-Catalyzed Enantioselective Carbonyl Addition of Aryl Chlorides and Bromides to Aldehydes. Chemistry 2024; 30:e202401591. [PMID: 38844428 DOI: 10.1002/chem.202401591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Indexed: 07/31/2024]
Abstract
The Ni-catalyzed enantioselective addition reaction of aryl halides to aldehydes was studied with cyanobis(oxazoline) as chiral ligands and Mn as reductant. Aryl and heteroaryl bromides reacted with phenyl aldehyde at room temperature to produce dibenzyl alcohols in 16-99 % yields with 53-92 % ees. Moreover, the coupling of phenyl chloride with a variety of aryl, heteroaryl and alkyl aldehydes was demonstrated in the presence of cyanobis(oxazoline)/Ni(II) at 60 °C in generally high yields with moderate enantioselectivities.
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Affiliation(s)
- Mingjie Jiang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Limei Yu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Chenhui Zou
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Hao Yuan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Minghui Xu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Bin Chen
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Peng Cao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
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2
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Chen JH, Zhang LR, Wang ZY, Liu LJ, Tu LP, Zhang Y, Chen YZ, Han WY. De Novo Synthesis of α-Ketoamides via Pd/TBD Synergistic Catalysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404266. [PMID: 38986026 DOI: 10.1002/advs.202404266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/17/2024] [Indexed: 07/12/2024]
Abstract
Precisely controlling the product selectivity of a reaction is an important objective in organic synthesis. α-Ketoamides are vital intermediates in chemical transformations and privileged motifs in numerous drugs, natural products, and biologically active molecules. The selective synthesis of α-ketoamides from feedstock chemicals in a safe and operationally simple manner under mild conditions is a long-standing catalysis challenge. Herein, an unprecedented TBD-switched Pd-catalyzed double isocyanide insertion reaction for assembling ketoamides in aqueous DMSO from (hetero)aryl halides and pseudohalides under mild conditions is reported. The effectiveness and utility of this protocol are demonstrated by its diverse substrate scope (93 examples), the ability to late-stage modify pharmaceuticals, scalability to large-scale synthesis, and the synthesis of pharmaceutically active molecules. Mechanistic studies indicate that TBD is a key ligand that modulates the Pd-catalyzed double isocyanide insertion process, thereby selectively providing the desired α-ketoamides in a unique manner. In addition, the imidoylpalladium(II) complex and α-ketoimine amide are successfully isolated and determined by X-ray analysis, confirming that they are probable intermediates in the catalytic pathway.
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Affiliation(s)
- Jia-He Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
| | - Li-Ren Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
| | - Zhang-Yang Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
| | - Lu-Jie Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
| | - Li-Ping Tu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
| | - Yun Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
| | - Wen-Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, No. 6 West Xuefu Rd., Zunyi, 563006, China
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3
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Huang S, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Arylation of Common Ketones. J Am Chem Soc 2024; 146:12895-12900. [PMID: 38696162 DOI: 10.1021/jacs.4c02818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
A nickel complex of chiral bisoxazolines catalyzed the stereoselective reductive arylation of ketones in high enantioselectivity. A range of common acyclic and cyclic ketones reacted without the aid of directing groups. Mechanistic studies using isolated complex of a chiral bis(oxazoline) (L)Ni(Ar)Br revealed that Mn reduction was not needed, while Lewis acidic titanium alkoxides were critical to ketone insertion.
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Affiliation(s)
- Shuai Huang
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, 2199 Lishui Road, Nanshan District, Shenzhen 518055, China
| | - Jianrong Steve Zhou
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, 2199 Lishui Road, Nanshan District, Shenzhen 518055, China
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4
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Shinde PS, Shinde VS, Rueping M. Electrochemical low valent cobalt-catalyzed addition of aryl and vinyl chlorides to α-ketoamides via C-Cl bond activation. Chem Commun (Camb) 2024; 60:3826-3829. [PMID: 38497225 DOI: 10.1039/d4cc00309h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
The development of an electrochemical cobalt catalyzed C-Cl bond activation at room temperature for the nucleophilic addition of aryl and vinyl chlorides to α-ketoamides is described. The overall method operates through an electrochemically induced low valent cobalt catalyst that oxidatively adds to aryl or vinyl chlorides affording medicinally important 3-hydroxy oxindole and 3-hydroxypyrrolidinone scaffolds. The development of an enantioselective version using a chiral pyrox ligand is also demonstrated.
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Affiliation(s)
- Prashant S Shinde
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia.
| | - Valmik S Shinde
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia.
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, Uttar Pradesh, India.
| | - Magnus Rueping
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia.
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5
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Changmai S, Gogoi T, Phukon J, Das B, Gogoi S. Ru(II)-catalyzed oxidative coupling of sulfoxonium ylides with amines: efficient synthesis of α-ketoamides and indolo[2,1- a]isoquinolines. Org Biomol Chem 2023; 21:3235-3244. [PMID: 36994697 DOI: 10.1039/d3ob00187c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
The first use of sulfoxonium ylides for the synthesis of α-ketoamides is described via a Ru(II)-catalyzed amidation reaction with amines. The same Ru(II)-catalyzed reaction of sulfoxonium ylides with 2-phenylindoles provided indolo[2,1-a]isoquinolines instead of α-ketoamides.
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Affiliation(s)
- Sumi Changmai
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Tribeni Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Jyotshna Phukon
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Bipul Das
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
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6
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Ping Y, Li X, Pan Q, Kong W. Ni-Catalyzed Divergent Synthesis of 2-Benzazepine Derivatives via Tunable Cyclization and 1,4-Acyl Transfer Triggered by Amide N-C Bond Cleavage. Angew Chem Int Ed Engl 2022; 61:e202201574. [PMID: 35385598 DOI: 10.1002/anie.202201574] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Indexed: 01/08/2023]
Abstract
Ligand-directed divergent synthesis can transform common starting materials into distinct molecular scaffolds by simple tuning different ligands. This strategy enables the rapid construction of structurally rich collection of small molecules for biological evaluation and reveals novel modes of catalytic transformation, representing one of the most sought-after challenges in synthetic chemistry. We herein report a Ni-catalyzed ligand-controlled tunable cyclization/cross-couplings for the divergent synthesis of pharmacologically important 2-benzazepine frameworks. The bidentate ligand facilitates the nucleophilic addition of the aryl halides to the amide carbonyl, followed by 1,4-acyl transfer and cross-coupling to obtain 2-benzazepin-5-ones and benzo[c]pyrano[2,3-e]azepines. The tridentate ligand promotes the selective 7-endo cyclization/cross-coupling to access to 2-benzazepin-3-ones. The protocol operates under mild reaction conditions with divergent cyclization patterns that can be easily modulated through the ligand backbone.
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Affiliation(s)
- Yuanyuan Ping
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Xiao Li
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Qi Pan
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
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7
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Jiang X, Jiang H, Yang Q, Cheng Y, Lu LQ, Tunge JA, Xiao WJ. Photoassisted Cobalt-Catalyzed Asymmetric Reductive Grignard-Type Addition of Aryl Iodides. J Am Chem Soc 2022; 144:8347-8354. [PMID: 35481388 DOI: 10.1021/jacs.2c02481] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Grignard addition is one of the most important methods used for syntheses of alcohol compounds and has been known for over a hundred years. However, research on asymmetric catalysis relies on the use of organometallic nucleophiles. Here, we report the first visible-light-induced cobalt-catalyzed asymmetric reductive Grignard-type addition for synthesizing chiral benzyl alcohols (>50 examples, up to 99% yield, and 99% ee). This methodology has the advantages of mild reaction conditions, good functionality tolerance, excellent enantiocontrol, the avoidance of mass metal wastes, and the use of precious metal catalysts. Kinetic realization studies suggested that migratory insertion of an aryl cobalt species into the aldehyde was the rate-determining step of the reductive addition reaction.
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Affiliation(s)
- Xuan Jiang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Hao Jiang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Qian Yang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Ying Cheng
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Liang-Qiu Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jon A Tunge
- Department of Chemistry, The University of Kansas, 1567 Irving Hill Rd., Lawrence, Kansas 66045, United States
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China.,State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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8
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Zhang S, Perveen S, Ouyang Y, Xu L, Yu T, Zhao M, Wang L, Song P, Li P. Design and Synthesis of Tunable Chiral 2,2'-Bipyridine Ligands: Application to the Enantioselective Nickel-Catalyzed Reductive Arylation of Aldehydes. Angew Chem Int Ed Engl 2022; 61:e202117843. [PMID: 35174597 DOI: 10.1002/anie.202117843] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Indexed: 11/11/2022]
Abstract
A new class of chiral 2,2'-bipyridine ligands, SBpy, featuring minimized short-range steric hindrance and structural tunability was rationally designed and developed, and the effectiveness was demonstrated in the first highly enantioselective Ni-catalyzed addition of aryl halides to aldehydes. In comparison with known approaches using preformed aryl metallic reagents, this reaction is more step-economical and functional group tolerant. The reaction mechanism and a model of stereocontrol were proposed based on experimental and computational results.
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Affiliation(s)
- Shuai Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Saima Perveen
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi, 832003, China
| | - Tao Yu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Min Zhao
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Linghua Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Peidong Song
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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9
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Zhu Z, Xiao J, Li M, Shi Z. Nickel-Catalyzed Intermolecular Asymmetric Addition of Aryl Iodides across Aldehydes. Angew Chem Int Ed Engl 2022; 61:e202201370. [PMID: 35147282 DOI: 10.1002/anie.202201370] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Indexed: 01/03/2023]
Abstract
Enantioenriched alcohols comprise much of the framework of organic molecules. Here, we first report that chiral nickel complexes can catalyze the intermolecular enantioselective addition of aryl iodides across aldehydes to provide diverse optically active secondary alcohols using zinc metal as the reducing agent. This method shows a broad substrate scope under mild reaction conditions and precludes the traditional strategy through the pre-generation of organometallic reagents. Mechanistic studies indicate that an in situ formed arylnickel, instead of an arylzinc, adds efficiently to aldehydes, forming a new C-C bond and a chiral nickel alkoxide that may be turned over by zinc powder.
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Affiliation(s)
- Ziqi Zhu
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Jieshuai Xiao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Mingjie Li
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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10
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Ping Y, Li X, Pan Q, Kong W. Ni‐Catalyzed Divergent Synthesis of 2‐Benzazepine Derivatives via Tunable Cyclization and 1,4‐Acyl Transfer Triggered by Amide N‐C Bond Cleavage. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuanyuan Ping
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Xiao Li
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Qi Pan
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
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11
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Zhao F, Ai HJ, Wu XF. Copper-Catalyzed Substrate-Controlled Carbonylative Synthesis of α-Keto Amides and Amides from Alkyl Halides. Angew Chem Int Ed Engl 2022; 61:e202200062. [PMID: 35175679 DOI: 10.1002/anie.202200062] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 12/15/2022]
Abstract
Controllable production of α-keto amides and amides from the same substrates is an attractive goal in the field of transition-metal-catalyzed (double-)carbonylation. Herein, a novel copper-catalyzed highly selective double carbonylation of alkyl bromides has been developed. Moderate to good yields of α-keto amides were obtained as the only products. In the case of alkyl iodides, double- and mono-carbonylation can be achieved controllably under different conditions.
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Affiliation(s)
- Fengqian Zhao
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Han-Jun Ai
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China
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12
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Singh S, Sureshbabu P, Sabiah S, Kandasamy J. Synthesis of N‐Aryl α–Ketoamides, α–Ketoesters, α–Ketothioesters and Their Applications in Quinoxalinone Preparation. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shweta Singh
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | - Popuri Sureshbabu
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | | | - Jeyakumar Kandasamy
- Indian Institute of Technology (BHU) Chemistry Varanasi 221005 Varanasi INDIA
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13
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Zhang S, Perveen S, Ouyang Y, Xu L, Yu T, Zhao M, Wang L, Song P, Li P. Design and Synthesis of Tunable Chiral 2,2′‐Bipyridine Ligands: Application to the Enantioselective Nickel‐Catalyzed Reductive Arylation of Aldehydes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuai Zhang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Saima Perveen
- School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi 832003 China
| | - Tao Yu
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Min Zhao
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Linghua Wang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Peidong Song
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Pengfei Li
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
- State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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14
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Zhao F, Ai H, Wu X. Copper‐Catalyzed Substrate‐Controlled Carbonylative Synthesis of α‐Keto Amides and Amides from Alkyl Halides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fengqian Zhao
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Han‐Jun Ai
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao‐Feng Wu
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian Liaoning China
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15
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Zhu Z, Xiao J, Li M, Shi Z. Nickel‐Catalyzed Intermolecular Asymmetric Addition of Aryl Iodides across Aldehydes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ziqi Zhu
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Jieshuai Xiao
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Mingjie Li
- Nanjing University School of Chemistry and Chemical Engineering CHINA
| | - Zhuangzhi Shi
- Nanjing University 南京大学 School of Chemistry & Chemical Engineering 163 Xianlin Avenue栖霞区仙林大道163号南京大学化学化工学院 210046 Nanjing CHINA
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16
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Chandrasekaran R, Pulikkottil FT, Elama KS, Rasappan R. Direct synthesis and applications of solid silylzinc reagents. Chem Sci 2021; 12:15719-15726. [PMID: 35003603 PMCID: PMC8654096 DOI: 10.1039/d1sc06038d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 11/19/2021] [Indexed: 01/29/2023] Open
Abstract
The increased synthetic utility of organosilanes has motivated researchers to develop milder and more practical synthetic methods. Silylzinc reagents, which are typically the most functional group tolerant, are notoriously difficult to synthesize because they are obtained by a pyrophoric reaction of silyllithium, particularly Me3SiLi which is itself prepared by the reaction of MeLi and disilane. Furthermore, the dissolved LiCl in silylzinc may have a detrimental effect. A synthetic method that can avoid silyllithium and involves a direct synthesis of silylzinc reagents from silyl halides is arguably the simplest and most economical strategy. We describe, for the first time, the direct synthesis of PhMe2SiZnI and Me3SiZnI reagents by employing a coordinating TMEDA ligand, as well as single crystal XRD structures. Importantly, they can be obtained as solids and stored for longer periods at 4 °C. We also demonstrate their significance in cross-coupling of various free alkyl/aryl/alkenyl carboxylic acids with broader functional group tolerance and API derivatives. The general applicability and efficiency of solid Me3SiZnI are shown in a wide variety of reactions including alkylation, arylation, allylation, 1,4-addition, acylation and more.
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Affiliation(s)
- Revathi Chandrasekaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram Kerala 695551 India
| | - Feba Thomas Pulikkottil
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram Kerala 695551 India
| | - Krishna Suresh Elama
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram Kerala 695551 India
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram Vithura Thiruvananthapuram Kerala 695551 India
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17
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Singh S, Popuri S, Junaid QM, Sabiah S, Kandasamy J. Diversification of α-ketoamides via transamidation reactions with alkyl and benzyl amines at room temperature. Org Biomol Chem 2021; 19:7134-7140. [PMID: 34355726 DOI: 10.1039/d1ob01021b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A wide range of N-tosyl α-ketoamides underwent transamidation with various alkyl amines in the absence of a catalyst, base, or additive. On the other hand, transamidation in N-Boc α-ketoamides was achieved in the presence of Cs2CO3. The reactions proceeded at room temperature and provided good to excellent yields of transamidation products under the optimized conditions. Broad substrate scope, functional group tolerance and quick conversions are the important features of the developed methodology.
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Affiliation(s)
- Shweta Singh
- Department of chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005, India.
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18
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Chen X, Yue J, Wang K, Gui Y, Niu Y, Liu J, Ran C, Kong W, Zhou W, Yu D. Nickel‐Catalyzed Asymmetric Reductive Carbo‐Carboxylation of Alkenes with CO
2. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102769] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiao‐Wang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jun‐Ping Yue
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Kuai Wang
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Yong‐Yuan Gui
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Materials Science Sichuan Normal University Chengdu 610068 P. R. China
| | - Ya‐Nan Niu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jie Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Chuan‐Kun Ran
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Wangqing Kong
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Wen‐Jun Zhou
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Chemical Engineering Neijiang Normal University Neijiang 641100 P. R. China
| | - Da‐Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- Beijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
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19
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Chen X, Yue J, Wang K, Gui Y, Niu Y, Liu J, Ran C, Kong W, Zhou W, Yu D. Nickel‐Catalyzed Asymmetric Reductive Carbo‐Carboxylation of Alkenes with CO
2. Angew Chem Int Ed Engl 2021; 60:14068-14075. [DOI: 10.1002/anie.202102769] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Xiao‐Wang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jun‐Ping Yue
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Kuai Wang
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Yong‐Yuan Gui
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Materials Science Sichuan Normal University Chengdu 610068 P. R. China
| | - Ya‐Nan Niu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jie Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Chuan‐Kun Ran
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Wangqing Kong
- The Center for Precision Synthesis Institute for Advanced Studies Wuhan University Wuhan 430072 P. R. China
| | - Wen‐Jun Zhou
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- College of Chemistry and Chemical Engineering Neijiang Normal University Neijiang 641100 P. R. China
| | - Da‐Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- Beijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
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20
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Komeyama K. Reductive Transformations of Organo (pseudo) halides Catalyzed by Cobalt and/or Nickel Catalyst. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kimihiro Komeyama
- Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University
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21
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Li Y, Li W, Tian J, Huang G, Lv H. Nickel-Catalyzed Asymmetric Addition of Aromatic Halides to Ketones: Highly Enantioselective Synthesis of Chiral 2,3-Dihydrobenzofurans Containing a Tertiary Alcohol. Org Lett 2020; 22:5353-5357. [PMID: 32573236 DOI: 10.1021/acs.orglett.0c01612] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly enantioselective and straightforward synthetic procedure to chiral 3-hydroxy-2,3-dihydrobenzofurans has been developed by nickel/bisoxazoline-catalyzed intramolecular asymmetric addition of aryl halides to unactivated ketones, giving 2,3-dihydrobenzofurans with a chiral tertiary alcohol at the C-3 position in good yields and excellent enantioselectivities (up to 92% yield and 98% ee). The gram-scale reaction also proceeded smoothly without a loss of yield and enantioselectivity.
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Affiliation(s)
- Ying Li
- Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.,Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wendian Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Jiangyan Tian
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Guozheng Huang
- Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
| | - Hui Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education & College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
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22
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Urbán B, Nagy E, Nagy P, Papp M, Skoda-Földes R. Double carbonylation of iodoarenes in the presence of a pyridinium SILP-Pd catalyst. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Bayat M, Nasri S, Alivisi R, Jani A. Novel synthesis of oxoacetamides via reaction of salicylaldehyde and isocyanide under mild reaction condition. Heliyon 2020; 6:e04076. [PMID: 32490258 PMCID: PMC7260292 DOI: 10.1016/j.heliyon.2020.e04076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/27/2020] [Accepted: 05/21/2020] [Indexed: 11/28/2022] Open
Abstract
A convenient procedure for the formation of oxoacetamides derivatives is reported via the reaction of salicylaldehyde and alkyl isocyanide in a simple process without the use of any catalyst or metal promoters in DCM at room temperature. The structure of all obtained derivatives were determined by elemental and spectral analyses. In this reaction, 1,3-dioxine-4,4-dicarboxamide was obtained as minor product. This process offers considerable advantages such as the simplicity of reaction, regioselectivity, and the use of commercially available materials.
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Affiliation(s)
- Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Shima Nasri
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Rahman Alivisi
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Azadeh Jani
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
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24
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Zhou P, XU T. Nickel-catalyzed intramolecular desymmetrization addition of aryl halides to 1,3-diketones. Chem Commun (Camb) 2020; 56:8194-8197. [DOI: 10.1039/d0cc00457j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A nickel-catalyzed intramolecular addition of aryl halides to 1,3-diketones was first developed to afford a polycyclic framework with two tetrasubstituted carbons in excellent diastereoselectivity. Moderate enantioselectivities were also achieved.
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Affiliation(s)
- Pan Zhou
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- School of Chemical Science and Engineering
- Tongji University
- Shanghai
- P. R. China
| | - Tao XU
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- School of Chemical Science and Engineering
- Tongji University
- Shanghai
- P. R. China
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25
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Zhou Z, Xu Y, Zhu B, Li P, Hu G, Yang F, Xu S, Zhang X. One-pot synthesis of 3-hydroxy-2-oxindoles via acyloin rearrangements of 2-hydroxy-indolin-3-ones generated in situ from 2-alkynyl arylazides. NEW J CHEM 2020. [DOI: 10.1039/d0nj04588h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A novel one-pot method to prepare 3-hydroxy-2-oxindoles via acyloin rearrangements of 2-hydroxy-indolin-3-ones generated in situ from 2-alkynyl arylazides has been described.
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Affiliation(s)
- Zhiqiang Zhou
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Yao Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Boyu Zhu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Ping Li
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Guiwen Hu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Fan Yang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Shijie Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Xiaoxiang Zhang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
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26
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Islam SS, Riyajuddin S, Molla RA, Yasmin N, Ghosh K, Islam SM. POP-Pd(ii) catalyzed easy and safe in situ carbonylation towards the synthesis of α-ketoamides from secondary cyclic amines utilizing CHCl3 as a carbon monoxide surrogate. NEW J CHEM 2020. [DOI: 10.1039/c9nj05089b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
POP-palladium(ii) was synthesized for the in situ carbonylation of aryl iodides and secondary cyclic amine to the respective α-ketoamides.
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Affiliation(s)
- Sk Safikul Islam
- Department of Chemistry
- University of Kalyani
- Nadia
- India
- Department of Chemistry
| | | | - Rostam Ali Molla
- Department of Chemistry
- S. N. Bose Govt. Polytechnic College
- Malda
- India
| | - Nasima Yasmin
- Department of Chemistry
- Aliah University
- Kolkata-700160
- India
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27
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El-Meligie SEM, Khalil NA, El-Nassan HB, Ibraheem AAM. A Review on the Synthetic Routes to β-Keto Amides. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666191021120336] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the data published on the methods of preparation of β-
keto amides as a versatile synthon for many heterocyclic rings and asymmetric urea derivatives.
Based on the starting materials used for the synthesis of β-keto amides, eight
methods were reported including β-keto acids and their derivatives, Meldrum’s acid and
their derivatives, diketene, 2,6-dimethyl-1,3-dioxin-4-one derivatives (TMD), α-diazo ketones,
enamines and enolates, acetamides and their derivatives and reduction of certain
Passerini products.
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Affiliation(s)
- Salwa E. M. El-Meligie
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Nadia A. Khalil
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Hala B. El-Nassan
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ahmed A. M. Ibraheem
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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28
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Muthukumar A, Sangeetha S, Sekar G. Recent developments in functionalization of acyclic α-keto amides. Org Biomol Chem 2018; 16:7068-7083. [DOI: 10.1039/c8ob01423j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes the synthetic utility of α-keto amides to synthesize various important molecules via mono, dual and triple functionalization reactions.
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Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Subramani Sangeetha
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Govindasamy Sekar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
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29
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Wang L, Qu X, Fang L, Li Z, Hu S, Wang F. Synthesis of 3-Acetoxyoxindole Derivatives by Metal-Free PhI(OAc)2-Mediated Oxidation of 3-Substituted Indoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600706] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Liang Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Xing Qu
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Lizhu Fang
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Zhan Li
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Siqian Hu
- Key Laboratory of Optoelectronic Chemical Materials and Devices; Ministry of Education; School of Chemical and Enviromental Engineering; Jianghan University; 430056 Wuhan P. R. China
| | - Feng Wang
- College of Chemistry and Materials Science; Hubei Engineering University; 432000 Xiaogan P. R. China
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30
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Affiliation(s)
- Dinesh Kumar
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Sandeep R. Vemula
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
| | - Gregory R. Cook
- Department
of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108-6050, United States
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31
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Moon HR, Lee S, Roh HJ, Kim JN. Facile Synthesis of 3-Aryl-3-hydroxy-2-oxindoles from 2-Arylindoles. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10807] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hye Ran Moon
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Sangku Lee
- Targeted Medicine Research Center; Korea Research Institute of Bioscience and Biotechnology; Chungbuk 363-883 Korea
| | - Hwa Jung Roh
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
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32
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Nickel-Catalyzed Reductive Couplings. Top Curr Chem (Cham) 2016; 374:43. [DOI: 10.1007/s41061-016-0042-2] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 05/30/2016] [Indexed: 12/14/2022]
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33
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Liu W, Xu S, Chen C, Zhu Z. An Expedient Approach to Synthesize Aryl-α-ketoamides from Acetophenones and N,N-Dimethylformamide. ChemistrySelect 2016. [DOI: 10.1002/slct.201600053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Weibing Liu
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 P. R. China
| | - Songsen Xu
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 P. R. China
| | - Cui Chen
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 P. R. China
| | - Zhibo Zhu
- TCM-Integrated Cancer center of southern medical university; 13 Shiliugang Road, Haizhu district Guangzhou 510315 P. R. China
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34
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Burke AJ. Recent advances in metal catalyzed intramolecular aryl additions—accessing bioactive molecules. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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35
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Zhang S, Chen WQ, Yu A, He LN. Palladium-Catalyzed Carboxylation of Benzyl Chlorides with Atmospheric Carbon Dioxide in Combination with Manganese/Magnesium Chloride. ChemCatChem 2015. [DOI: 10.1002/cctc.201500724] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuai Zhang
- Department State Key Laboratory and Institute of Elemento-Organic Chemistry; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 P. R. China
| | - Wei-Qiang Chen
- College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Ao Yu
- College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Liang-Nian He
- Department State Key Laboratory and Institute of Elemento-Organic Chemistry; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 P. R. China
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36
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Komeyama K, Asakura R, Takaki K. A Sn atom-economical approach toward arylstannanes: Ni-catalysed stannylation of aryl halides using Bu3SnOMe. Org Biomol Chem 2015; 13:8713-6. [PMID: 26178882 DOI: 10.1039/c5ob01096a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stannylation of carbon-halogen bonds is one of the most promising and straightforward approaches for the preparation of organostannane compounds. Although a wide variety of methods are now available, all protocols require the use of highly nucleophilic organometals or wasteful stannyl sources like distannanes. Here, we report a new nickel-catalysed stannylation of aryl and alkenyl-halides using Bu3SnOMe as a stannyl source to afford aryl and vinyl-stannanes, respectively. This method enables the stannylation of not only bromides, but also chlorides and triflates to furnish functionalized aryl- and alkenyl-stannanes without the release of wasteful and toxic stannyl byproducts.
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Affiliation(s)
- Kimihiro Komeyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8527, Japan.
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37
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Lai J, Tian L, Liang Y, Zhang Y, Xie X, Fang B, Tang S. Di-tert-Butyl Peroxide-Mediated Atom-Transfer Radical Addition of 2-Chlorodithiane to Aryl Alkynes under Mild Conditions. Chemistry 2015; 21:14328-31. [PMID: 26296151 DOI: 10.1002/chem.201502581] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Junshan Lai
- School of Pharmacy, Lanzhou University, Lanzhou 730000 (P. R. China)
| | - Lixia Tian
- School of Pharmacy, Lanzhou University, Lanzhou 730000 (P. R. China)
| | - Yongping Liang
- School of Pharmacy, Lanzhou University, Lanzhou 730000 (P. R. China)
| | - Yuan Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000 (P. R. China)
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000 (P. R. China)
| | - Bowen Fang
- Chemical Engineering Institute, Northwest University for Nationalities, Lanzhou, 730030 (P. R. China)
| | - Shouchu Tang
- School of Pharmacy, Lanzhou University, Lanzhou 730000 (P. R. China).
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000 (P. R. China).
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38
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Li J, Zheng Y, Yu X, Lv S, Wang Q, Hai L, Wu Y. Synthesis of isatins by the palladium-catalyzed intramolecular acylation of unactivated aryl C(sp2)–H bonds. RSC Adv 2015. [DOI: 10.1039/c5ra23837d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Synthesis of isatins from formyl-N-arylformamides is achieved via PdCl2-catalyzed intramolecular acylation.
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Affiliation(s)
- Jue Li
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
- P. R. China
| | - Yang Zheng
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
- P. R. China
| | - Xinling Yu
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
- P. R. China
| | - Songyang Lv
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
- P. R. China
| | - Qiantao Wang
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
- P. R. China
| | - Li Hai
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
- P. R. China
| | - Yong Wu
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
- P. R. China
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39
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Zhu YF, Cai C. N-Heterocyclic carbene-catalyzed synthesis of functionalized 3-hydroxypyrrolidinones via a domino aza-Michael/aldol reaction. NEW J CHEM 2015. [DOI: 10.1039/c4nj02420f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction features a transition-metal-free approach, mild reaction conditions, as well as a simple procedure.
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Affiliation(s)
- Yan-fang Zhu
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
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40
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Naganawa Y, Aoyama T, Nishiyama H. Cu(ii)-catalyzed enantioselective oxygen atom transfer from oxaziridine to oxindole derivatives with chiral phenanthroline. Org Biomol Chem 2015; 13:11499-506. [DOI: 10.1039/c5ob01840d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In the presence of a Cu(ii) complex of chiral, N,N,O-tridentate phenanthroline ligand (S)-2, asymmetric oxygen atom transfer of oxindole (3) using Davis’ oxaziridine (4) occurred to give the corresponding 3-aryl-3-hydroxy-2-oxindole derivatives (1) with excellent enantioselectivity.
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Affiliation(s)
- Yuki Naganawa
- Department of Applied Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603, Japan
| | - Tomotaka Aoyama
- Department of Applied Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603, Japan
| | - Hisao Nishiyama
- Department of Applied Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603, Japan
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41
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Zhou S, Schlangen M, Schwarz H. Mechanistic Aspects of the Gas-Phase Reactions of Halobenzenes with Bare Lanthanide Cations: A Combined Experimental/Theoretical Investigation. Chemistry 2014; 21:2123-31. [DOI: 10.1002/chem.201405964] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 11/10/2022]
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42
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Wang Y, Yang X, Zhang C, Yu J, Liu J, Xia C. Phosphine-Free, Efficient Double Carbonylation of Aryl Iodides with Amines Catalyzed by Water-Insoluble and Water-Soluble N-Heterocyclic Carbene-Amine Palladium Complexes. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Li C, Guo F, Xu K, Zhang S, Hu Y, Zha Z, Wang Z. Copper-Catalyzed Enantioselective Friedel–Crafts Alkylation of Pyrrole with Isatins. Org Lett 2014; 16:3192-5. [DOI: 10.1021/ol501086q] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chong Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Fengfeng Guo
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kun Xu
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Sheng Zhang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yanbin Hu
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
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Moragas T, Correa A, Martin R. Metal-Catalyzed Reductive Coupling Reactions of Organic Halides with Carbonyl-Type Compounds. Chemistry 2014; 20:8242-58. [DOI: 10.1002/chem.201402509] [Citation(s) in RCA: 333] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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45
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He JQ, Chen C, Yu WB, Liu RR, Xu M, Li YJ, Gao JR, Jia YX. Nickel-catalyzed intramolecular addition of vinyl or aryl bromides to ketoamides. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.069] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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46
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Shirai T, Ito H, Yamamoto Y. Cationic Ir/Me-BIPAM-Catalyzed Asymmetric Intramolecular Direct Hydroarylation of α-Ketoamides. Angew Chem Int Ed Engl 2014; 53:2658-61. [DOI: 10.1002/anie.201400147] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Indexed: 11/06/2022]
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47
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Shirai T, Ito H, Yamamoto Y. Cationic Ir/Me-BIPAM-Catalyzed Asymmetric Intramolecular Direct Hydroarylation of α-Ketoamides. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400147] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Solé D, Fernández I. Controlling the ambiphilic nature of σ-arylpalladium intermediates in intramolecular cyclization reactions. Acc Chem Res 2014; 47:168-79. [PMID: 23957464 DOI: 10.1021/ar400104j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reactivity of main group organometallics, such as organolithium compounds (RLi) and Grignard reagents (RMgX), is quite straightforward. In these species the R group usually exhibits nucleophilic reactivity without any possibility of inducing electrophilic character. In contrast, in organopalladium complexes, researchers can switch the reactivity from electrophilic to nucleophilic relatively simply. Although σ-aryl and σ-vinylpalladium complexes are commonly used as electrophiles in C-C bond-forming reactions, recent research has demonstrated that they can also react with carbon-heteroatom multiple bonds in a nucleophilic manner. Nevertheless, researchers have completely ignored the issue of controlling the ambiphilic nature of such species. This Account describes our efforts toward selectively promoting the same starting materials toward either electrophilic α-arylation or nucleophilic addition reactions to different carbonyl groups. We could tune the properties of the σ-arylpalladium intermediates derived from amino-tethered aryl halides and carbonyl compounds to achieve chemoselective transformations. Therefore, chemists can control the ambiphilic nature of such intermediates and, consequently, the competition between the alternative reaction pathways by the adequate selection of the reaction conditions and additives (base, presence/absence of phenol, bidentate phosphines). The nature of the carbonyl group (aldehydes, ketones, esters, and amides) and the length of the tether connecting it to the aniline moiety also play an important role in the outcome of these processes. Our joint computational and experimental efforts to elucidate the reaction mechanism of these palladium-catalyzed transformations suggest that beyond the formation of the four-membered azapalladacycle, two major factors help to control the dual character of the palladium(II) intermediates derived from 2-haloanilines. First, their high nucleophilicity strongly modifies the interaction of the metal center with the carbonyl group. Second, the additive phenol exchanges the iodide ligand to give an arylpalladium(II) phenoxide complex, which has a beneficial effect on the arylation. The formation of this transient intermediate not only stabilizes the arylpalladium moiety, thus preventing the nucleophilic attack at the carbonyl group, but also assists the enolization reaction, which takes place in a more favorable intramolecular manner. The azapalladacycle intermediate is, in the words of J. R. R. Tolkien, "the one ring to bring them all and in the darkness to bind them." With this intermediate, we can easily achieve the synthesis of a variety of heterocyclic systems by selectively promoting electrophilic α-arylation or nucleophilic addition reactions from the same precursors.
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Affiliation(s)
- Daniel Solé
- Laboratori de Química Orgànica, Facultat de Farmàcia, and Institut de Biomedicina (IBUB), Universitat de Barcelona, 08028-Barcelona, Spain
| | - Israel Fernández
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040-Madrid, Spain
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Du B, Jin B, Sun P. The syntheses of α-ketoamides vianBu4NI-catalyzed multiple sp3C–H bond oxidation of ethylarenes and sequential coupling with dialkylformamides. Org Biomol Chem 2014; 12:4586-9. [DOI: 10.1039/c4ob00520a] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nBu4NI-catalyzed sequential C–O and C–N bond formation via multiple sp3C–H bond activation of ethylarenes, using N,N-dialkylformamide as the amino source, provided α-ketoamides with moderate yields.
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Affiliation(s)
- Bingnan Du
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
| | - Bo Jin
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
| | - Peipei Sun
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
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50
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Formation of organopalladium complexes via C–Br and C–C bond activation. Application in C–C and C–N coupling reactions. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.03.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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