1
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Li P, Yang Z, Chen Z. Rhodium(III)-Catalyzed Coupling of Quinolin-8-carboxaldehydes with CF 3-Imidoyl Sulfoxonium Ylides by Chelation-Assisted C(sp 2)-H Bond Activation for the Synthesis of Trifluoromethyl-Substituted Enaminones. J Org Chem 2024; 89:10736-10747. [PMID: 39021230 DOI: 10.1021/acs.joc.4c00984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
A rhodium(III)-catalyzed aldehydic C(sp2)-H imidoylmethylation of quinolin-8-carboxaldehydes with CF3-imidoyl sulfoxonium ylides (TFISYs) has been developed for the generation of α-imino ketones, which could be readily tautomerized to enaminones in moderate to excellent yields. In the transformation, TFISYs act as a kind of masked alkenylating reagents for the aldehyde moiety, and the obtained CF3-enaminone products have been successfully converted into other useful trifluoromethyl-substituted heterocycles.
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Affiliation(s)
- Pinyi Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zuguang Yang
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhengkai Chen
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
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2
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Thakur DG, Rathod NB, Patel SD, Patel DM, Patel RN, Sonawane MA, Ghosh SC. Palladium-Catalyzed Chelation-Assisted Aldehyde C-H Bond Activation of Quinoline-8-carbaldehydes: Synthesis of Amides from Aldehydes with Anilines and Other Amines. J Org Chem 2024. [PMID: 38195393 DOI: 10.1021/acs.joc.3c02139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
A palladium-catalyzed chelation-assisted direct aldehyde C-H bond amidation of quinoline-8-carbaldehydes with an amine was developed under mild reaction conditions. A wide range of amides were obtained in good to excellent yields from aldehyde with a variety of aniline derivatives and aliphatic amines. Our methodology was successfully applied to synthesize known DNA intercalating agents and can be easily scaled up to a gram scale.
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Affiliation(s)
- Dinesh Gopichand Thakur
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR), G. B. Marg, Bhavnagar , Gujarat 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nileshkumar B Rathod
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR), G. B. Marg, Bhavnagar , Gujarat 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sachinkumar D Patel
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR), G. B. Marg, Bhavnagar , Gujarat 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Dharmik M Patel
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR), G. B. Marg, Bhavnagar , Gujarat 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Raj N Patel
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR), G. B. Marg, Bhavnagar , Gujarat 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mahesh A Sonawane
- Natural Products and Green Chemistry Division, Central Salt and Marine Chemicals Research Institute (CSIR), G. B. Marg, Bhavnagar , Gujarat 364002, 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), G. B. Marg, Bhavnagar , Gujarat 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Aher YN, Bhaduri N, Pawar AB. Advances in transition metal-catalyzed C-H amination strategies using anthranils. Org Biomol Chem 2023; 21:8794-8812. [PMID: 37901918 DOI: 10.1039/d3ob01421e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Modern times have witnessed an uprise in the synthesis and derivatization of nitrogen-containing fused heterocycles. Amination reactions involving nitrene chemistry have always been the most convenient choice for the incorporation of a nitrogen atom in a molecule. The utilization of an open nitrene species harnesses harsh conditions. Hence, transition metal-catalyzed C-H amination reactions using aminating agents have been an attractive choice. Electrophilic aminating agents for C-H amination reactions are well exploited due to their desirable reaction conditions. Out of all, anthranils have paved the way forward due to their utility in simultaneously forming two new functional groups (amine and carbonyl). Amination using anthranils follows a metal-nitrenoid pathway. Often, the amination has been followed by a Lewis acid or transition metal-mediated intramolecular cyclization to directly produce fused heterocycles. This review broadly demonstrates the utilization of anthranils as an aminating agent for transition metal-catalyzed C-H amination reactions. The focus has been given to the scope, limitations, and mechanistic understanding of using such an electrophilic aminating agent, anthranil, with transition metals.
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Affiliation(s)
- Yogesh N Aher
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
| | - Nilanjan Bhaduri
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
| | - Amit B Pawar
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
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4
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He Y, Sun B, Lu X, Zhou Y, Zhang FL. Iridium-Catalyzed Direct Ortho-C-H Amidation of α-Ketoesters with Sulfonyl Azides Using a Transient Directing Group Strategy. J Org Chem 2023; 88:4345-4351. [PMID: 36898142 DOI: 10.1021/acs.joc.2c02944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Direct C-H amidation of α-ketoesters was accomplished using various organic azides as the amino source through the combination of transient directing group strategy and iridium catalysis. Excellent functional group tolerance and wide substrate scope were explored under simple and mild conditions. Importantly, it was found that the steric hindrance of the ester moiety played a pivotal role for the reaction efficacy. In addition, the reaction could be enlarged to gram scale, and several useful heterocycles were readily constructed via one-step late-stage derivatization.
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Affiliation(s)
- Yinlong He
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Bing Sun
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Xuelian Lu
- Shenzhen Research Institute, Wuhan University of Technology, Shenzhen, Guangdong 518057, China
| | - Yirong Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Fang-Lin Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China.,Shenzhen Research Institute, Wuhan University of Technology, Shenzhen, Guangdong 518057, China
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5
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Wang W, Pi C, Cui X, Wu Y. TBAI-Catalysed Formal [4+4]-Cycloaddition: Easy Access to Oxa-Bridged Eight-Membered Heterocycles. Chemistry 2023; 29:e202300301. [PMID: 36757635 DOI: 10.1002/chem.202300301] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/10/2023]
Abstract
TBAI-catalysed [4+4]-cyclization reaction of anthranils with hydrazones to deliver oxa-bridged eight-membered heterocycles in accepted yields was developed. Preliminary mechanistic studies indicated that the reaction involved the in situ generation of vinyldiazenes from readily available hydrazones followed by an aza-Michael addition of the anthranil substrates onto the vinyldiazenes and subsequent annulation. This transformation involved the formation of two new C-N bonds and C-O bond in one pot, overcoming the synthetic limitations of anthranils in organic chemistry. This strategy benefits from high efficiency and atomic economy with mild reaction conditions.
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Affiliation(s)
- Wenxiang Wang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China
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6
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Kharitonov VB, Muratov DV, Loginov DA. Cyclopentadienyl complexes of group 9 metals in the total synthesis of natural products. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Dong X, Shang M, Chen S, Zhang T, Jalani HB, Lu H. Carbonyl-Assisted Iridium-Catalyzed C-H Amination Using 2,2,2-Trichloroethoxycarbonyl Azide. J Org Chem 2022; 87:13990-14004. [PMID: 36190135 DOI: 10.1021/acs.joc.2c01636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The carbonyl-directed, mono C-H amination of arenes has been achieved using [Cp*Ir(III)Cl2]2 as the catalyst and 2,2,2-trichloroethoxycarbonyl (Troc) azide as an aminating reagent. The amination proceeds smoothly with a variety of arylcarbonyl compounds, including alkyl and vinyl arylketones, secondary and tertiary aryl amides, and acetyl indoles. The resulting ortho-TrocNH arylcarbonyl compounds are easily transformed to the corresponding free arylamines, aryl carbamates, or aryl ureas. Taking advantage of the electrophilic nature of both Troc and carbonyl groups in ortho-TrocNH arylcarbonyl compounds, the subsequent cyclization with dinucleophilic reagents has also been demonstrated. This provides an efficient strategy for the construction of aryl-fused N-heterocycles.
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Affiliation(s)
- Xunqing Dong
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Mingzhou Shang
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Shuguang Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Tao Zhang
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Hitesh B Jalani
- Smart BioPharm, 310-Pilotplant, Incheon Techno-Park, 12-Gaetbeol-ro, Yeonsu-gu, Incheon 21999, Republic of Korea
| | - Hongjian Lu
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
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8
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Chen YJ, Xu HB, Liu H, Dong L. Highly-selective synthesis of functionalized spirobenzofuranones and diketones. Org Chem Front 2022. [DOI: 10.1039/d2qo00677d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient and atom-economical rhodium(iii)-catalyzed highly-selective hydroacylation for the synthesis of spirobenzofuranones and diketones has been successfully developed.
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Affiliation(s)
- Yin-Jun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Hui-Bei Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Hao Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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9
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Zhang J, Zhou P, Yin A, Zhang S, Liu W. Synthetic Route to Enaminones via Metal-Free Four-Component Sequential Reactions of Aryl Olefins with CHCl 3, Et 3N, and TBHP. J Org Chem 2021; 86:8980-8986. [PMID: 34125540 DOI: 10.1021/acs.joc.1c00823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient and modular strategy was used to obtain enaminones with a wide range of functional groups via a four-component sequential reaction. This reaction proceeded under mild conditions without a catalyst in one pot. Furthermore, the products could be transformed into thiadiazoles.
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Affiliation(s)
- Jiantao Zhang
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Peng Zhou
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Aiguo Yin
- College of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Shuhua Zhang
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Weibing Liu
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
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10
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Zhang M, Meng Y, Wu Y, Song C. TfOH-Promoted Decyanative Cyclization toward the Synthesis of 2,1-Benzisoxazoles. J Org Chem 2021; 86:7326-7332. [PMID: 34014082 DOI: 10.1021/acs.joc.1c00091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel solvent-free, TfOH-promoted decyanative cyclization approach for the synthesis of 2,1-benzisoxazoles has been developed. The reactions are complete instantly at room temperature and result in the formation of the desired 2,1-benzisoxazoles in a 34-97% isolated yield.
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Affiliation(s)
- Mengge Zhang
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Yonggang Meng
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Yangang Wu
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Chuanjun Song
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
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11
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Bera S, Biswas A, Samanta R. Straightforward Construction and Functionalizations of Nitrogen-Containing Heterocycles Through Migratory Insertion of Metal-Carbenes/Nitrenes. CHEM REC 2021; 21:3411-3428. [PMID: 33913245 DOI: 10.1002/tcr.202100061] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 12/15/2022]
Abstract
Nitrogen-containing heterocycles are widely found in various biologically active substrates, pharmaceuticals, natural products and organic materials. Consequently, the continuous effort has been devoted towards the development of straightforward, economical, environmentally acceptable, efficient and ingenious methods for the synthesis of various N-containing heterocycles and their functionalizations. Arguably, one of the most prominent direct strategy is regioselective C-H bond functionalizations which provide the step and atom economical approaches in the presence of suitable coupling partners. In this context, site-selective migratory insertion of metal carbenes/nitrenes to the desired C-H bonds has proven as a useful tool to access various functionalized nitrogen heterocycles. In this personal account, we highlight some of our contemporary development toward constructing N-containing heterocycles and their direct functionalizations via transition metal catalysed C-H bond functionalizations based on migratory insertion of metal-carbenes and nitrenes.
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Affiliation(s)
- Satabdi Bera
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Aniruddha Biswas
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Rajarshi Samanta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
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12
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Sk MR, Bera SS, Basuli S, Metya A, Maji MS. Recent Progress in the C−N Bond Formation via High‐Valent Group 9 Cp*M(III)‐Catalyzed Directed sp
2
C−H Activation. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000367] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Md Raja Sk
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Sourav Sekhar Bera
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Suchand Basuli
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Abhisek Metya
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Modhu Sudan Maji
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
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13
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Ghosh P, Samanta S, Hajra A. Rhodium(iii)-catalyzed ortho-C-H amidation of 2-arylindazoles with a dioxazolone as an amidating reagent. Org Biomol Chem 2020; 18:1728-1732. [PMID: 32009136 DOI: 10.1039/c9ob02756d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A simple and efficient method for the directed amidation of a wide range of 2-arylindazoles has been established for the first time through a rhodium-catalyzed C-H activation reaction with alkyl, aryl and heteroaryl dioxazolones. A series of N-(2-(2H-indazol-2-yl)phenyl)acetamide derivatives were synthesized in excellent yields. A mechanistic study was conducted to describe C-H bond cleavage which is likely to be involved in the rate determining step.
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Affiliation(s)
- Payel Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
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14
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Kamble RB, Mane KD, Rupanawar BD, Korekar P, Sudalai A, Suryavanshi G. Ti-superoxide catalyzed oxidative amidation of aldehydes with saccharin as nitrogen source: synthesis of primary amides. RSC Adv 2020; 10:724-728. [PMID: 35494431 PMCID: PMC9047451 DOI: 10.1039/c9ra10413e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 12/19/2019] [Indexed: 02/04/2023] Open
Abstract
A new heterogeneous catalytic system (Ti-superoxide/saccharin/TBHP) has been developed that efficiently catalyzes oxidative amidation of aldehydes to produce various primary amides. The protocol employs saccharin as amine source and was found to tolerate a wide range of substrates with different functional groups. Moderate to excellent yields, catalyst reusability and operational simplicity are the main highlights. A possible mechanism and the role of the catalyst in oxidative amidation have also been discussed. Heterogeneous catalytic system using Ti-superoxide and saccharin with TBHP has been developed which catalyzes oxidative amidation of aldehyde to produce primary amides. It tolerates a wide range of substrates with different functional groups.![]()
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Affiliation(s)
- Rohit B Kamble
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory Pune Maharashtra India-411 008 .,Academy of Scientific and Innovative Research Ghaziabad UP India-201002
| | - Kishor D Mane
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory Pune Maharashtra India-411 008 .,Academy of Scientific and Innovative Research Ghaziabad UP India-201002
| | - Bapurao D Rupanawar
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory Pune Maharashtra India-411 008 .,Academy of Scientific and Innovative Research Ghaziabad UP India-201002
| | - Pranjal Korekar
- Department of Chemistry, MES Abasaheb Garware College Pune India-411004
| | - A Sudalai
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory Pune Maharashtra India-411 008 .,Academy of Scientific and Innovative Research Ghaziabad UP India-201002
| | - Gurunath Suryavanshi
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory Pune Maharashtra India-411 008 .,Academy of Scientific and Innovative Research Ghaziabad UP India-201002
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15
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Biswas A, Bera S, Poddar P, Dhara D, Samanta R. Rh(iii)-Catalyzed tandem indole C4-arylamination/annulation with anthranils: access to indoloquinolines and their application in photophysical studies. Chem Commun (Camb) 2020; 56:1440-1443. [DOI: 10.1039/c9cc08372c] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient Rh(iii)-catalyzed straightforward strategy was developed for the site-selective tandem C4 arylamination/annulation of indole derivatives with anthranil to provide indoloquinoline moieties.
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Affiliation(s)
- Aniruddha Biswas
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Satabdi Bera
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Puja Poddar
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Dibakar Dhara
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Rajarshi Samanta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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16
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Gao Y, Nie J, Huo Y, Hu XQ. Anthranils: versatile building blocks in the construction of C–N bonds and N-heterocycles. Org Chem Front 2020. [DOI: 10.1039/d0qo00163e] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review article provides an overview of the recent progress in the transformations of anthranils, which have emerged as versatile building blocks in the assembly of various C–N bonds and medicinally active heterocyclic systems.
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Affiliation(s)
- Yang Gao
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Jianhong Nie
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Xiao-Qiang Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- School of Chemistry and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
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17
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Pang X, Lin X, Zhou X, Yang B, Tian X, Wang J, Xu S, Liu Y. New quinoline alkaloid and bisabolane-type sesquiterpenoid derivatives from the deep-sea-derived fungus Aspergillus sp. SCSIO06786. Fitoterapia 2020; 140:104406. [DOI: 10.1016/j.fitote.2019.104406] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 02/07/2023]
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18
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Mihara G, Noguchi T, Nishii Y, Hayashi Y, Kawauchi S, Miura M. Rhodium-Catalyzed Annulative Coupling of Isothiazoles with Alkynes through N-S Bond Cleavage. Org Lett 2019; 22:661-665. [PMID: 31886679 DOI: 10.1021/acs.orglett.9b04437] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A Rh(III)-catalyzed annulative coupling of 3,5-diarylisothiazoles and alkynes is reported. The N-S bond in the isothiazole ring acts as an internal oxidant to regenerate the Rh(III) species in combination with an external Cu(II) oxidant, and the corresponding 1:2 coupling products are obtained. The remarkable difference in the reaction outcome between isothiazoles and the relevant isoxazoles has been investigated by DFT calculations, revealing that the relative stability of the enolate intermediates dictates the product selectivity.
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Affiliation(s)
| | | | | | - Yoshihiro Hayashi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , Ookayama, Meguro-ku, Tokyo 152-8552 , Japan
| | - Susumu Kawauchi
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , Ookayama, Meguro-ku, Tokyo 152-8552 , Japan
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19
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Mechanism and stereospecificity of Z-enamide synthesis from salicylaldehydes with isoxazoles using DFT calculations. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Shah TA, De PB, Pradhan S, Banerjee S, Punniyamurthy T. Exploiting Strained Rings in Chelation Guided C−H Functionalization: Integration of C−H Activation with Ring Cleavage. Chem Asian J 2019; 14:4520-4533. [DOI: 10.1002/asia.201901067] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/17/2019] [Indexed: 02/01/2023]
Affiliation(s)
- Tariq A. Shah
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Pinaki Bhusan De
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Sourav Pradhan
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Sonbidya Banerjee
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
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21
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Huang J, Ding J, Ding TM, Zhang S, Wang Y, Sha F, Zhang SY, Wu XY, Li Q. Cobalt-Catalyzed Ortho-C(sp 2)-H Amidation of Benzaldehydes with Dioxazolones Using Transient Directing Groups. Org Lett 2019; 21:7342-7345. [PMID: 31478381 DOI: 10.1021/acs.orglett.9b02632] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient and convenient cobalt-catalyzed ortho-C(sp2)-H amidation of benzaldehydes employing dioxazolones as the aminating reagent has been developed. The key feature of this protocol is the use of green and economic earth-abundant metals cobalt as the catalyst with the p-chloroaniline as the transient directing group. Further application of our approach was demonstrated by the synthesis of C1r serine protease inhibitor 45 and elastase inhibitor 49.
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Affiliation(s)
- Jie Huang
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Jun Ding
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Tong-Mei Ding
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Shuiyi Zhang
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Yaqiu Wang
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Feng Sha
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Shu-Yu Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs and School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xin-Yan Wu
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Qiong Li
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , China
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22
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Kotov AD, Proskurina IK. Anthranils (2,1-benzisoxazoles) as aminating agents (microreview). Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02523-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Lade DM, Aher YN, Pawar AB. Cp*Ir(III)-Catalyzed C–H/O–H Functionalization of Salicylaldehydes for the Synthesis of Chromones at Room Temperature. J Org Chem 2019; 84:9188-9195. [DOI: 10.1021/acs.joc.9b01139] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Dhanaji M. Lade
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Yogesh N. Aher
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Amit B. Pawar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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24
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Debbarma S, Sk MR, Modak B, Maji MS. On-Water Cp*Ir(III)-Catalyzed C–H Functionalization for the Synthesis of Chromones through Annulation of Salicylaldehydes with Diazo-Ketones. J Org Chem 2019; 84:6207-6216. [DOI: 10.1021/acs.joc.9b00418] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Suvankar Debbarma
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Md Raja Sk
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Biswabrata Modak
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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25
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Cheng Q, Xie J, Weng Y, You S. Pd‐Catalyzed Dearomatization of Anthranils with Vinylcyclopropanes by [4+3] Cyclization Reaction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901251] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Jia‐Hao Xie
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Yue‐Cheng Weng
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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26
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Cheng Q, Xie J, Weng Y, You S. Pd‐Catalyzed Dearomatization of Anthranils with Vinylcyclopropanes by [4+3] Cyclization Reaction. Angew Chem Int Ed Engl 2019; 58:5739-5743. [DOI: 10.1002/anie.201901251] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Jia‐Hao Xie
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Yue‐Cheng Weng
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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27
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Biswas A, Sarkar S, Samanta R. Rh
III
‐Catalyzed Straightforward Synthesis of Benzophenanthroline and Benzophenanthrolinone Derivatives using Anthranils. Chemistry 2019; 25:3000-3004. [DOI: 10.1002/chem.201806373] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/11/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Aniruddha Biswas
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Souradip Sarkar
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302 India
| | - Rajarshi Samanta
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302 India
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28
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Narendar Reddy T, Beatriz A, Jayathirtha Rao V, de Lima DP. Carbonyl Compounds′ Journey to Amide Bond Formation. Chem Asian J 2019; 14:344-388. [DOI: 10.1002/asia.201801560] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/22/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Thatikonda Narendar Reddy
- Instituto de Química (INQUI); Universidade Federal de Mato Grosso do Sul; 79074-460 Campo Grande Mato Grosso do Sul Brazil
- Crop Protection Chemicals Division; CSIR-Indian Institute of Chemical Technology; Uppal Road Tarnaka Hyderabad 500007 India
| | - Adilson Beatriz
- Instituto de Química (INQUI); Universidade Federal de Mato Grosso do Sul; 79074-460 Campo Grande Mato Grosso do Sul Brazil
| | - Vaidya Jayathirtha Rao
- Crop Protection Chemicals Division; CSIR-Indian Institute of Chemical Technology; Uppal Road Tarnaka Hyderabad 500007 India
| | - Dênis Pires de Lima
- Instituto de Química (INQUI); Universidade Federal de Mato Grosso do Sul; 79074-460 Campo Grande Mato Grosso do Sul Brazil
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29
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Rodrigo E, Baunis H, Suna E, Waldvogel SR. Simple and scalable electrochemical synthesis of 2,1-benzisoxazoles and quinoline N-oxides. Chem Commun (Camb) 2019; 55:12255-12258. [DOI: 10.1039/c9cc06054e] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
At carbon electrodes in a scalable electrosynthetic way to two classes of useful heterocycles.
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Affiliation(s)
- Eduardo Rodrigo
- Institut für Organische Chemie
- Johannes-Gutenberg-Universität Mainz
- 55128 Mainz
- Germany
| | - Haralds Baunis
- Institut für Organische Chemie
- Johannes-Gutenberg-Universität Mainz
- 55128 Mainz
- Germany
- Latvian Institute of Organic Synthesis
| | - Edgars Suna
- Latvian Institute of Organic Synthesis
- Aizkraukles 21
- Latvia
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30
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Xie F, Shen B, Li X. Enantioselective Copper-Catalyzed Hydroamination of Vinylarenes with Anthranils. Org Lett 2018; 20:7154-7157. [DOI: 10.1021/acs.orglett.8b03093] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Fang Xie
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Bingxue Shen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
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31
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Gupta SSR, Nakhate AV, Deshmukh GP, Periasamy S, Samudrala PS, Bhargava SK, Lakshmi Kantam M. Direct Synthesis of Amides from Oxidative Coupling of Benzyl Alcohols or Benzylamines with N
-Substituted Formamides Using a Cu-Fe-Based Heterogeneous Catalyst. ChemistrySelect 2018. [DOI: 10.1002/slct.201801297] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shyam Sunder R. Gupta
- Department of Chemical Engineering; Institute of Chemical Technology, N.P. Marg, Matunga; Mumbai-400 019 India
| | - Akhil V. Nakhate
- Department of Chemical Engineering; Institute of Chemical Technology, N.P. Marg, Matunga; Mumbai-400 019 India
| | - Gunjan P. Deshmukh
- Department of Chemical Engineering; Institute of Chemical Technology, N.P. Marg, Matunga; Mumbai-400 019 India
| | - Selvakannan Periasamy
- Centre for Advanced Materials & Industrial Chemistry (CAMIC); School of Applied Sciences; RMIT University, GPO BOX 2476; Melbourne-3001 Australia
| | - Priya S. Samudrala
- Centre for Advanced Materials & Industrial Chemistry (CAMIC); School of Applied Sciences; RMIT University, GPO BOX 2476; Melbourne-3001 Australia
| | - Suresh K. Bhargava
- Centre for Advanced Materials & Industrial Chemistry (CAMIC); School of Applied Sciences; RMIT University, GPO BOX 2476; Melbourne-3001 Australia
| | - Mannepalli Lakshmi Kantam
- Department of Chemical Engineering; Institute of Chemical Technology, N.P. Marg, Matunga; Mumbai-400 019 India
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32
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Kim S, Han SH, Mishra NK, Chun R, Jung YH, Kim HS, Park JS, Kim IS. Dual Role of Anthranils as Amination and Transient Directing Group Sources: Synthesis of 2-Acyl Acridines. Org Lett 2018; 20:4010-4014. [DOI: 10.1021/acs.orglett.8b01571] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Saegun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sang Hoon Han
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | | | - Rina Chun
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Young Hoon Jung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jung Su Park
- Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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33
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Sirbu D, Woodford OJ, Benniston AC, Harriman A. Photocatalysis and self-catalyzed photobleaching with covalently-linked chromophore-quencher conjugates built around BOPHY. Photochem Photobiol Sci 2018; 17:750-762. [DOI: 10.1039/c8pp00162f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Two Chromophore-Quencher Conjugates (CQCs) have been synthesized by covalent attachment of the anti-oxidant dibutylated-hydroxytoluene (BHT) to a pyrrole-BF2 chromophore (BOPHY) in an effort to protect the latter against photofading.
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Affiliation(s)
- Dumitru Sirbu
- Molecular Photonics Laboratory
- School of Natural and Environmental Sciences (Chemistry)
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
| | - Owen J. Woodford
- Molecular Photonics Laboratory
- School of Natural and Environmental Sciences (Chemistry)
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
| | - Andrew C. Benniston
- Molecular Photonics Laboratory
- School of Natural and Environmental Sciences (Chemistry)
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
| | - Anthony Harriman
- Molecular Photonics Laboratory
- School of Natural and Environmental Sciences (Chemistry)
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
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34
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Vásquez-Céspedes S, Wang X, Glorius F. Plausible Rh(V) Intermediates in Catalytic C–H Activation Reactions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03048] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Suhelen Vásquez-Céspedes
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Xiaoming Wang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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35
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Biswas A, Karmakar U, Nandi S, Samanta R. Copper-Catalyzed Direct, Regioselective Arylamination of N-Oxides: Studies To Access Conjugated π-Systems. J Org Chem 2017; 82:8933-8942. [DOI: 10.1021/acs.joc.7b01343] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aniruddha Biswas
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ujjwal Karmakar
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Shiny Nandi
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Rajarshi Samanta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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