1
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Wang X, He J, Wang YN, Zhao Z, Jiang K, Yang W, Zhang T, Jia S, Zhong K, Niu L, Lan Y. Strategies and Mechanisms of First-Row Transition Metal-Regulated Radical C-H Functionalization. Chem Rev 2024; 124:10192-10280. [PMID: 39115179 DOI: 10.1021/acs.chemrev.4c00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
Radical C-H functionalization represents a useful means of streamlining synthetic routes by avoiding substrate preactivation and allowing access to target molecules in fewer steps. The first-row transition metals (Ti, V, Cr, Mn, Fe, Co, Ni, and Cu) are Earth-abundant and can be employed to regulate radical C-H functionalization. The use of such metals is desirable because of the diverse interaction modes between first-row transition metal complexes and radical species including radical addition to the metal center, radical addition to the ligand of metal complexes, radical substitution of the metal complexes, single-electron transfer between radicals and metal complexes, hydrogen atom transfer between radicals and metal complexes, and noncovalent interaction between the radicals and metal complexes. Such interactions could improve the reactivity, diversity, and selectivity of radical transformations to allow for more challenging radical C-H functionalization reactions. This review examines the achievements in this promising area over the past decade, with a focus on the state-of-the-art while also discussing existing limitations and the enormous potential of high-value radical C-H functionalization regulated by these metals. The aim is to provide the reader with a detailed account of the strategies and mechanisms associated with such functionalization.
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Affiliation(s)
- Xinghua Wang
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Jing He
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Ya-Nan Wang
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Chemical Theory and Mechanism, Chongqing University, Chongqing 401331, P. R. China
| | - Zhenyan Zhao
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Kui Jiang
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Wei Yang
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Tao Zhang
- Institute of Intelligent Innovation, Henan Academy of Sciences, Zhengzhou, Henan 451162, P. R. China
| | - Shiqi Jia
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Kangbao Zhong
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Linbin Niu
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yu Lan
- College of Chemistry, and Pingyuan Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Chemical Theory and Mechanism, Chongqing University, Chongqing 401331, P. R. China
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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2
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Yu H, Xu F. Non-noble metal-catalyzed cross-dehydrogenation coupling (CDC) involving ether α-C(sp 3)-H to construct C-C bonds. Beilstein J Org Chem 2023; 19:1259-1288. [PMID: 37701303 PMCID: PMC10494247 DOI: 10.3762/bjoc.19.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/23/2023] [Indexed: 09/14/2023] Open
Abstract
Ether derivatives are widespread as essential building blocks in various drugs, natural products, agrochemicals, and materials. Modern economy requires developing green strategies with improved efficiency and reduction of waste. Due to its atom and step-economy, the cross-dehydrogenative coupling (CDC) reaction has become a major strategy for ether functionalization. This review covers C-H/C-H cross-coupling reactions of ether derivatives with various C-H bond substrates via non-noble metal catalysts (Fe, Cu, Co, Mn, Ni, Zn, Y, Sc, In, Ag). We discuss advances achieved in these CDC reactions and hope to attract interest in developing novel methodologies in this field of organic chemistry.
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Affiliation(s)
- Hui Yu
- Department of Pharmacy, Shi zhen College of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550200, P. R. China
| | - Feng Xu
- School of Mathematics and Information Science, Guiyang University, Guiyang, Guizhou 550005, P. R. China
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3
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Chen J, Wang F, Huang Y, Jia X, Zhuang D, Wan Z, Li Z. Remote carbamate-directed site-selective benzylic C–H oxygenation via synergistic copper/TEMPO catalysis at room temperature. Org Chem Front 2022. [DOI: 10.1039/d2qo00435f] [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 benzylic C(sp3)–H oxygenation with water at room temperature through a ligand- and additive-free synergistic copper/TEMPO-catalysed radical relay pathway and a remote directing strategy is described.
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Affiliation(s)
- Jiaming Chen
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Fang Wang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yanping Huang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Engineering Experimental Teaching Centre, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaoqi Jia
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Dailin Zhuang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhenyang Wan
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
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4
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Weigel WK, Dang HT, Feceu A, Martin DBC. Direct radical functionalization methods to access substituted adamantanes and diamondoids. Org Biomol Chem 2021; 20:10-36. [PMID: 34651636 DOI: 10.1039/d1ob01916c] [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
Adamantane derivatives have diverse applications in the fields of medicinal chemistry, catalyst development and nanomaterials, owing to their unique structural, biological and stimulus-responsive properties, among others. The synthesis of substituted adamantanes and substituted higher diamondoids is frequently achieved via carbocation or radical intermediates that have unique stability and reactivity when compared to simple hydrocarbon derivatives. In this review, we discuss the wide range of radical-based functionalization reactions that directly convert diamondoid C-H bonds to C-C bonds, providing a variety of products incorporating diverse functional groups (alkenes, alkynes, arenes, carbonyl groups, etc.). Recent advances in the area of selective C-H functionalization are highlighted with an emphasis on the H-atom abstracting species and their ability to activate the particularly strong C-H bonds that are characteristic of these caged hydrocarbons, providing insights that can be applied to the C-H functionalization of other substrate classes.
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Affiliation(s)
- William K Weigel
- Chemistry, University of Iowa, Iow City, Iowa, USA.,University of California Riverside, Riverside, California, USA.
| | - Hoang T Dang
- Chemistry, University of Iowa, Iow City, Iowa, USA
| | - Abigail Feceu
- University of California Riverside, Riverside, California, USA.
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5
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Yang D, Chen J, Huang Y, Pan H, Shi J, Zhang Y, Wang F, Li Z. Room-temperature Formal Aza-Wacker Cyclization through Synergistic Copper/TEMPO-catalyzed Radical Relay. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Dong Yang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jiaming Chen
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Yanping Huang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
- Engineering Experimental Teaching Centre, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Huiquan Pan
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jingqi Shi
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Yingyue Zhang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Fang Wang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
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6
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Shao Z, Wang F, Shi J, Ma L, Li Z. Synergetic copper/TEMPO-catalysed benzylic C–H imidation with N-fluorobenzenesulfonimide at room temperature and tandem conversions with alcohols or arenes. Org Chem Front 2021. [DOI: 10.1039/d1qo00340b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A remote carbamate-directed benzylic C–H imidation with NFSI at room temperature through synergetic CuCl-TEMPO catalysis and tandem alkoxylation or arylation with alcohols or arenes are described.
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Affiliation(s)
- Zhong Shao
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Fang Wang
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Jingqi Shi
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Lifang Ma
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
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7
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Ibrahim HM, Behbehani H. Palladium-Catalyzed Q-Tube-Assisted Protocol for Synthesizing Diaza-dibenzo[ a, e]azulene and Diaza-benzo[ a]fluorene Derivatives via O 2 Acid-Promoted Cross-Dehydrogenative Coupling. J Org Chem 2020; 85:15368-15381. [PMID: 33147024 DOI: 10.1021/acs.joc.0c02186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An appropriate and efficient Q-tube-assisted palladium-catalyzed strategy for the synthesis of novel, unparalleled diaza-dibenzo[a,e]azulene and diaza-benzo[a]fluorene derivatives has been sophisticated, which includes oxygen and AcOH-induced oxidative C(sp3)-C(sp2) cross-dehydrogenative coupling reactions of 1-amino-2-imino-4-arylpyridine-3-carbonitriles with benzocyclic ketones such as benzosuberone, tetralone, thiochromone, and chromone, respectively. This Q-tube gas purging kit assisted-protocol features safe due to easy pressing and sealing, a wide substrate scope, easy workup and purifying phases, and the use of O2 as a benign oxidant, in addition to being scalable and having a high atom economy. The suggested mechanistic pathway includes a formal dehydrative step followed by palladium AcOH-induced CH(sp3)-CH(sp2) oxidative cross-coupling. In this study, X-ray crystallographic analysis has been used to authenticate the targeted products.
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Affiliation(s)
- Hamada Mohamed Ibrahim
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.,Chemistry Department, Faculty of Science, Fayoum University, P.O. Box 63514, Fayoum 63514, Egypt
| | - Haider Behbehani
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
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8
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Affiliation(s)
- Moriah Locklear
- Department of Chemistry; University of Nebraska-Lincoln; 68588-0304 Lincoln NE USA
| | - Patrick H. Dussault
- Department of Chemistry; University of Nebraska-Lincoln; 68588-0304 Lincoln NE USA
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9
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Bismuth-catalyzed methylation and alkylation of quinone derivatives with tert-butyl peroxybenzoate as an oxidant. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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10
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Cobalt‐Catalyzed Oxyalkylation of Styrenes via α‐C(Sp
3
)−H Bond Activation of Ethers Without Organic Peroxides. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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11
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Behbehani H, Ibrahim HM. Synthetic Strategy for Pyrazolo[1,5- a]pyridine and Pyrido[1,2- b]indazole Derivatives through AcOH and O 2-Promoted Cross-dehydrogenative Coupling Reactions between 1,3-Dicarbonyl Compounds and N-Amino-2-iminopyridines. ACS OMEGA 2019; 4:15289-15303. [PMID: 31552376 PMCID: PMC6751734 DOI: 10.1021/acsomega.9b02430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/21/2019] [Indexed: 05/12/2023]
Abstract
An efficient method has been developed for the synthesis of uniquely substituted pyrazolo[1,5-a]pyridine and pyrido[1,2-b]indazole derivatives, which involves acetic acid and molecular oxygen promoted cross-dehydrogenative coupling reactions of respective β-ketoesters and β-diketones (like ethyl acetoacetate, ethyl benzoylacetate, methyl propionylacetate, acetylacetone, dimedone, 1,3-cyclohexanedione, and 1,3-cyclopentanedione) with N-amino-2-iminopyridines. The proposed tentative mechanism involves formal acetic acid-promoted oxidative C(sp3)-C(sp2) dehydrogenative coupling followed by dehydrative cyclization under a catalyst-free condition within high atom economy processes.
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Affiliation(s)
- Haider Behbehani
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
| | - Hamada Mohamed Ibrahim
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
- Chemistry
Department, Faculty of Science, Fayoum University, P.O. Box 63514, Fayoum, Egypt
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12
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Ibrahim HM, Behbehani H. Sustainable Synthetic Approach for (Pyrazol-4-ylidene)pyridines By Metal Catalyst-Free Aerobic C(sp 2)-C(sp 3) Coupling Reactions between 1-Amino-2-imino-pyridines and 1-Aryl-5-pyrazolones. ACS OMEGA 2019; 4:11701-11711. [PMID: 31460276 PMCID: PMC6682090 DOI: 10.1021/acsomega.9b01650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/21/2019] [Indexed: 05/26/2023]
Abstract
A novel, metal catalyst-free, and efficient method has been developed for the synthesis of (pyrazol-4-ylidene)pyridine derivatives. The process involves dehydrogenative coupling of 1-amino-2-imino-pyridines with 1-aryl-5-pyrazolone derivatives utilizing O2 as the sole oxidant. The new method benefits from a high atom economy, efficiency, and substrate scope, as well as the simplicity of reaction and product purification procedures.
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Affiliation(s)
- Hamada Mohamed Ibrahim
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
- Chemistry
Department, Faculty of Science, Fayoum University, P.O. Box 63514, Fayoum, Egypt
| | - Haider Behbehani
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
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13
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Liang D, Huo B, Dong Y, Wang Y, Dong Y, Wang B, Ma Y. Copper-Catalyzed Alkylarylation of Unactivated Alkenes: Synthesis of 3-Alkyl Indolines from N-Allyl Anilines and Alkanes. Chem Asian J 2019; 14:1932-1936. [PMID: 31046195 DOI: 10.1002/asia.201900176] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 03/26/2019] [Indexed: 01/14/2023]
Abstract
A rare example of C(sp3 )-H functionalization of simple alkanes with unactivated alkenes is presented. In the presence of a copper salt and di-tert-butyl peroxide (DTBP), N-allyl anilines underwent exo-selective alkylation/cyclization cascade with unactivated alkenic bonds as radical acceptors and simple alkanes as radical precursors, providing a direct access to 3-alkyl indolines. The present protocol features simple operation, broad substrate scope and great exo selectivity.
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Affiliation(s)
- Deqiang Liang
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Bojie Huo
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Yongrui Dong
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Yan Wang
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
| | - Ying Dong
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong Province, 250014, China
| | - Baoling Wang
- Yunnan Engineering Technology Research Center for Plastic Films, Kunming, Yunnan Province, 650214, China
| | - Yinhai Ma
- Department of Chemistry, Kunming University, 2 Puxin Road, Kunming, Yunnan Province, 650214, China
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14
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Shi C, Miao Q, Ma L, Lu T, Yang D, Chen J, Li Z. Room‐Temperature C‐H Bromination and Iodination with Sodium Bromide and Sodium Iodide Using
N
‐Fluorobenzenesulfonimide as an Oxidant. ChemistrySelect 2019. [DOI: 10.1002/slct.201901456] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cuiying Shi
- Department of Pharmaceutical and Biological EngineeringSchool of Chemical Engineering, Sichuan University No.24 South Section 1, Yihuan Road Chengdu 610065 China
| | - Qi Miao
- Department of Pharmaceutical and Biological EngineeringSchool of Chemical Engineering, Sichuan University No.24 South Section 1, Yihuan Road Chengdu 610065 China
| | - Lifang Ma
- Department of Pharmaceutical and Biological EngineeringSchool of Chemical Engineering, Sichuan University No.24 South Section 1, Yihuan Road Chengdu 610065 China
| | - Tao Lu
- Department of Pharmaceutical and Biological EngineeringSchool of Chemical Engineering, Sichuan University No.24 South Section 1, Yihuan Road Chengdu 610065 China
| | - Dong Yang
- Department of Pharmaceutical and Biological EngineeringSchool of Chemical Engineering, Sichuan University No.24 South Section 1, Yihuan Road Chengdu 610065 China
| | - Jiaming Chen
- Department of Pharmaceutical and Biological EngineeringSchool of Chemical Engineering, Sichuan University No.24 South Section 1, Yihuan Road Chengdu 610065 China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological EngineeringSchool of Chemical Engineering, Sichuan University No.24 South Section 1, Yihuan Road Chengdu 610065 China
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15
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Zhou Y, Li C, Yuan X, Zhang F, Liu X, Liu P. Cobalt-catalyzed C2α-acyloxylation of 2-substituted indoles with tert-butyl peresters. Org Biomol Chem 2019; 17:3343-3347. [PMID: 30882836 DOI: 10.1039/c9ob00159j] [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
An efficient cobalt-catalyzed C2α selective C(sp3)-H acyloxylation of 2-substituted indoles with tert-butyl peresters to synthesize diverse 2α-acyloxylated indole derivatives is described. This newly developed method exhibits mild conditions, low-cost catalyst, and high functional group compatibility. In addition, the effectiveness of this chemistry is illuminated by a late-stage modification of methylated indomethacin.
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Affiliation(s)
- Yuxiang Zhou
- Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China.
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16
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Singsardar M, Laru S, Mondal S, Hajra A. Visible-Light-Induced Regioselective Cross-Dehydrogenative Coupling of 2H-Indazoles with Ethers. J Org Chem 2019; 84:4543-4550. [DOI: 10.1021/acs.joc.9b00318] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mukta Singsardar
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Sudip Laru
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Susmita Mondal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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17
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Decoration of 1,3-oxazole by alkyl substituents via CH activation (microreview). Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02442-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Baccalini A, Vergura S, Dolui P, Zanoni G, Maiti D. Recent advances in cobalt-catalysed C–H functionalizations. Org Biomol Chem 2019; 17:10119-10141. [DOI: 10.1039/c9ob01994d] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ready availability, low cost and low toxicity of cobalt salts have redirected the attention of researchers away from noble metals, such as Pd, Rh, and Ir, towards Co in the field of C–H functionalisation.
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Affiliation(s)
| | | | - Pravas Dolui
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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19
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Lei B, Miao Q, Ma L, Fu R, Hu F, Ni N, Li Z. Efficient metal-free aminoiodination of alkenes with N-fluorobenzenesulfonimide under mild conditions. Org Biomol Chem 2019; 17:2126-2133. [DOI: 10.1039/c8ob03019g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel regioselective and stereoselective transition-metal-free aminoiodination of alkenes through an iodonium intermediate using NFSI as both the oxidant and amino precursor under mild conditions with a broad alkene scope is disclosed.
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Affiliation(s)
- Bowen Lei
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Qi Miao
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Lifang Ma
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ruoqi Fu
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Fangrong Hu
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ni Ni
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
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20
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Miao Q, Shao Z, Shi C, Ma L, Wang F, Fu R, Gao H, Li Z. Metal-free C–H amination of arene with N-fluorobenzenesulfonimide catalysed by nitroxyl radicals at room temperature. Chem Commun (Camb) 2019; 55:7331-7334. [DOI: 10.1039/c9cc02739d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The first C–H amination of arene with NFSI via organocatalysis is disclosed, which can be achieved at room temperature with a broad substrate scope.
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Affiliation(s)
- Qi Miao
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Zhong Shao
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Cuiying Shi
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Lifang Ma
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Fang Wang
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ruoqi Fu
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Haochen Gao
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological Engineering
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
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21
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Zhou Y, Chen G, Li C, Liu X, Liu P. Cobalt (II)-catalyzed direct C3-selective C–H acyloxylation of indoles with tert-butyl peresters. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1524493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yuxiang Zhou
- Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, PR China
| | - Guojun Chen
- Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, PR China
| | - Chenglong Li
- Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, PR China
| | - Xiaozu Liu
- Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, PR China
| | - Peijun Liu
- Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, PR China
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22
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Faisca Phillips AM, Pombeiro AJL. Recent Developments in Transition Metal-Catalyzed Cross-Dehydrogenative Coupling Reactions of Ethers and Thioethers. ChemCatChem 2018. [DOI: 10.1002/cctc.201800582] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ana Maria Faisca Phillips
- Centro de Química Estrutural; Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural; Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
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23
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Synthesis of Alkyl-Substituted Pyrazine N
-Oxides by Transition-Metal-Free Oxidative Cross-Coupling Reactions. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800183] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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24
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Satheesh V, Vivek Kumar S, Punniyamurthy T. Expedient stereospecific Co-catalyzed tandem C–N and C–O bond formation of N-methylanilines with styrene oxides. Chem Commun (Camb) 2018; 54:11813-11816. [DOI: 10.1039/c8cc06223d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Co(ii)-catalyzed stereospecific sequential C–N and C–O bond formation of styrene oxides with N-methylanilines has been developed. Optically active epoxides can be coupled with high enantiomeric purity.
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Affiliation(s)
- Vanaparthi Satheesh
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
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