1
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Wang Y, Tsui GC. Stereodivergent Palladium-Catalyzed C-F Bond Functionalization of gem-Difluoroalkenes. Org Lett 2024; 26:5822-5826. [PMID: 38937877 DOI: 10.1021/acs.orglett.4c02112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
We herein describe a stereodivergent C-F bond functionalization of gem-difluoroalkenes. Using trisubstituted β,β-difluoroacrylates, both E and Z monofluoroalkene products can be obtained with excellent diastereoselectivities. The design of two different reaction manifolds, i.e., Pd(II)- versus Pd(0)-catalyzed cross-coupling of boronic acids, is the key to stereocontrol.
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Affiliation(s)
- Yanhui Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, Shanghai 200032, China
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2
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Wang H, He YY, Han J, Zhou ZQ, Hu XQ. Metal-Free Cyanation of gem-Difluoroalkenes via Azide-Mediated C-C Double Bond Fragmentation. J Org Chem 2024. [PMID: 38787532 DOI: 10.1021/acs.joc.4c00281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Activation and cleavage of C-C double bonds are long-standing challenges in synthetic chemistry. Herein, we report an unprecedented azide-mediated C-C double bond fragmentation of gem-difluoroalkenes under mild and metal-free conditions, enabling the efficient synthesis of structurally diverse aromatic nitriles in moderate to good yields. This protocol is also amenable to the cyanation of gem-dichloro and dibromo alkenes. This reaction features simple operation and good functional group compatibility and can be implemented at a gram scale.
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Affiliation(s)
- Hui Wang
- 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 Minzu University, Wuhan 430074, China
| | - Yuan-Yuan He
- 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 Minzu University, Wuhan 430074, China
| | - Jianwei Han
- Jiangsu Tetra New Material Technology Co., Ltd, Taixing 225400, China
| | - Zhong-Qiang Zhou
- 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 Minzu University, Wuhan 430074, 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 Minzu University, Wuhan 430074, China
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3
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Li X, Song H, Yu S, Mi R, Li XX. Rhodium-Catalyzed Enantioselective 1,4-Oxyamination of Conjugated gem-Difluorodienes via Coupling with Carboxylic Acids and Dioxazolones. Angew Chem Int Ed Engl 2023; 62:e202305669. [PMID: 37357836 DOI: 10.1002/anie.202305669] [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: 04/25/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 06/27/2023]
Abstract
The incorporation of fluorine atoms in organics improves their bioactivity and lipophilicity. Catalytic functionalization of gem-difluorodienes represents one of the most straightforward approaches to access fluorinated alkenes. In contrast to the regular 1,3-dienes that undergo diverse asymmetric di/hydrofunctionalizations, the regio- and enantioselective oxyamination of gem-difluorodienes remains untouched. Herein, we report asymmetric 1,4-oxyamination of gem-difluorodiene by chiral rhodium-catalyzed three-component coupling with readily available carboxylic acid and dioxazolone, affording gem-difluorinated 1,4-amino alcohol derivatives. Our asymmetric protocol exhibits high 1,4-regio- and enantioselectivity with utility in the late-stage modification of pharmaceuticals and natural products. Stoichiometric experiments provide evidences for the π-allylrhodium pathway. Related oxyamination was also realized when trifluoroethanol was used as an oxygen nucleophile.
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Affiliation(s)
- Xingwei Li
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, China
| | - Heng Song
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
| | - Songjie Yu
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
| | - Ruijie Mi
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
| | - Xiao-Xi Li
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
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4
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Yang H, Wang J, Jin C, Li X, Xu X. Au(I)-Catalyzed Regioselective Hydrofluorination of Propargylamines Using Aqueous HF. J Org Chem 2023; 88:12074-12078. [PMID: 37494279 DOI: 10.1021/acs.joc.3c00594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Gold-catalyzed regioselective hydrofluorination of alkynes using aqueous HF has been achieved by employing an amide directing group. For both aryl- and alkyl-substituted propargylamines, the fluorination occurred at the site distal to the amino group.
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Affiliation(s)
- Hui Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Jie Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Can Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xiaoqing Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xiangsheng Xu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
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5
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Cui X, Qu J, Yi J, Sun W, Hu J, Guo S, Jin JW, Chen WH, Wong WL, Wu JQ. Rh(III)-catalyzed redox-neutral C-H alkenylation of benzamides with gem-difluorohomoallylic silyl ethers via β-H elimination. Chem Commun (Camb) 2023; 59:3747-3750. [PMID: 36897608 DOI: 10.1039/d3cc00529a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Fluorinated molecules are widely used in pharmaceutical and agrochemical industries. Herein we report the synthesis of 2-(3,3-difluoro-4-(silyloxy)but-1-en-1-yl)benzamides from the unprecedented rhodium(III)-catalyzed alkenylation of various benzamides with difluorohomoallylic silyl ethers. The practicability of this protocol is demonstrated by its broad substrate compatibility, good functional group tolerance, ready scalability and high regioselectivity. The oxygen in difluorohomoallylic silyl ethers makes β-H elimination feasible, which suppresses both the β-F elimination and dialkenylation of benzamides. This redox-neutral reaction proceeds efficiently via N-O bond cleavage without external oxidants and thus provides new opportunities for the synthesis of elaborate difluorinated compounds from readily available fluorinated synthons.
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Affiliation(s)
- Xueli Cui
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jing Qu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jianfeng Yi
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Weiqiang Sun
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Suqin Guo
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jing-Wei Jin
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Wing-Leung Wong
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
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6
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Bao Y, Tang M, Wang Q, Cao ZY, Wang Y, Yuan Z. Visible-Light-Induced Monofluoroalkenylation and gem-Difluoroallylation of Inactivated C(sp 3)-H Bonds via 1,5-Hydrogen Atom Transfer (HAT). J Org Chem 2023; 88:3883-3896. [PMID: 36880346 DOI: 10.1021/acs.joc.3c00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
The direct monofluoroalkenylation of C(sp3)-H bonds is of great importance and quite challenging. Current methods have been restricted to the monofluoroalkenylation of activated C(sp3)-H bonds. Here, we reported the photocatalyzed C(sp3)-H monofluoroalkenylation of inactivated C(sp3)-H bonds with gem-difluoroalkenes via 1,5-hydrogen atom transfer. This process shows good functional group tolerance, such as halides (F, Cl), nitrile, sulfone, ester, and pyridine, and good γ-selectivity. Moreover, this method succeeds in the photocatalyzed gem-difluoroallylation of inactivated C(sp3)-H with α-trifluoromethyl alkenes.
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Affiliation(s)
- Yanyang Bao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Meifang Tang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Qing Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Zhong-Yan Cao
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Yanan Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Zheliang Yuan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
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7
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Pang B, Wang Y, Hao L, Wu G, Ma Z, Ji Y. Tandem C-C/C-N Bond Formation via Rh(III)-Catalyzed α-Fluoroalkenylation and Sequential Annulation of 2-Arylquinazolinones and gem-Difluorostyrenes. J Org Chem 2023; 88:143-153. [PMID: 36563294 DOI: 10.1021/acs.joc.2c02006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An efficient method of Rh(III)-catalyzed coupling reaction between 2-arylquinazolinones and gem-difluorostyrenes has been developed. In this work, two diverse structures of monofluoroalkenes and isoindolo[1,2-b]quinazolin-10(12H)-one derivatives were respectively synthesized by controlling the amount of additives (Ca(OH)2 and AgNTf2) to achieve controlled stepwise breaking of the C-F bonds of gem-difluorostyrenes. This reaction has the characteristics of a wide range of substrates and good functional group tolerance. Meanwhile, several control experiments were conducted and a plausible mechanism was proposed.
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Affiliation(s)
- Binghan Pang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yangyang Wang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Liqiang Hao
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Gaorong Wu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Zhihong Ma
- Biotalk Co., LTD, Shanghai 200092, China
| | - Yafei Ji
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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8
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Sun G, Liu H, Wang X, Zhang W, Miao W, Luo Q, Gao B, Hu J. Palladium-Catalyzed Defluorinative Coupling of Difluoroalkenes and Aryl Boronic Acids for Ketone Synthesis. Angew Chem Int Ed Engl 2023; 62:e202213646. [PMID: 36315428 DOI: 10.1002/anie.202213646] [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: 09/15/2022] [Indexed: 11/06/2022]
Abstract
The transition-metal-catalyzed carbonylation reaction is a useful approach for ketone synthesis. However, it is often problematic to use exogenous carbonyl reagents, such as gaseous carbon monoxide. In this manuscript, we report a novel palladium-catalyzed coupling reaction of gem-difluoroalkenes and aryl boronic acids that yields bioactive indane-type ketones with an all-carbon α-quaternary center. Characterization and stoichiometric reactions of the key intermediates RCF2 PdII support a water-induced defluorination and cross-coupling cascade mechanism. The vinyl difluoromethylene motif serves as an in situ carbonyl precursor which is unprecedented in transition-metal-catalyzed coupling reactions. It is expected to raise broad research interest from the perspectives of ketone synthesis, fluoroalkene functionalization, and rational design of new synthetic protocols based on the unique reactivity of difluoroalkyl palladium(II) species.
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Affiliation(s)
- Guangwu Sun
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Chemical Biology and Nanomedicine, Hunan University, Changsha, Hunan 410082, China
| | - Herui Liu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Chemical Biology and Nanomedicine, Hunan University, Changsha, Hunan 410082, China
| | - Xiu Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Wenbo Zhang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Chemical Biology and Nanomedicine, Hunan University, Changsha, Hunan 410082, China
| | - Wenjun Miao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Qinyu Luo
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Bing Gao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Chemical Biology and Nanomedicine, Hunan University, Changsha, Hunan 410082, China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
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9
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He Y, Yuan J, Lv WX, Liu P, Teng F, Mo Q, Wu Z, Huang C, Liu Q, Wang H. Simple nucleophile/H2O promoted defluorinative ring-opening of gem-difluorocyclopropenes. GREEN SYNTHESIS AND CATALYSIS 2023. [DOI: 10.1016/j.gresc.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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10
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Lu MZ, Goh J, Maraswami M, Jia Z, Tian JS, Loh TP. Recent Advances in Alkenyl sp 2 C-H and C-F Bond Functionalizations: Scope, Mechanism, and Applications. Chem Rev 2022; 122:17479-17646. [PMID: 36240299 DOI: 10.1021/acs.chemrev.2c00032] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Alkenes and their derivatives are featured widely in a variety of natural products, pharmaceuticals, and advanced materials. Significant efforts have been made toward the development of new and practical methods to access this important class of compounds by selectively activating the alkenyl C(sp2)-H bonds in recent years. In this comprehensive review, we describe the state-of-the-art strategies for the direct functionalization of alkenyl sp2 C-H and C-F bonds until June 2022. Moreover, metal-free, photoredox, and electrochemical strategies are also covered. For clarity, this review has been divided into two parts; the first part focuses on currently available alkenyl sp2 C-H functionalization methods using different alkene derivatives as the starting materials, and the second part describes the alkenyl sp2 C-F bond functionalization using easily accessible gem-difluoroalkenes as the starting material. This review includes the scope, limitations, mechanistic studies, stereoselective control (using directing groups as well as metal-migration strategies), and their applications to complex molecule synthesis where appropriate. Overall, this comprehensive review aims to document the considerable advancements, current status, and emerging work by critically summarizing the contributions of researchers working in this fascinating area and is expected to stimulate novel, innovative, and broadly applicable strategies for alkenyl sp2 C-H and C-F bond functionalizations in the coming years.
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Affiliation(s)
- Ming-Zhu Lu
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, China.,School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Jeffrey Goh
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Manikantha Maraswami
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhenhua Jia
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jie-Sheng Tian
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Teck-Peng Loh
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, China.,School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore.,Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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11
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Luo Y, Zhou HY, Gang YC, Dong L. Formation of Fluorovinyl Spiro-[imidazole-indene] and α-Amino-β-naphthalenones via Rh(III)-Catalyzed Cascade C-H Functionalization. Org Lett 2022; 24:6940-6944. [PMID: 36129217 DOI: 10.1021/acs.orglett.2c02711] [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
An efficacious method for building fluorovinyl spiro-[imidazole-indene] and α-amino-β-naphthalenone skeletons synchronously has been shown to consist of Rh(III)-catalyzed C-H functionalization between 2H-imidazoles and difluoromethylene alkynes. This protocol demonstrates a practical and straightforward route for installing fluorine elements in the envisioned position of heterocyclic compounds.
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Affiliation(s)
- Yi Luo
- 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
| | - Han-Yi Zhou
- 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
| | - Yi-Chi Gang
- 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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12
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Liang Y, Zhou N, Ma G, Wen L, Wu X, Feng P. Tunable alkoxy-nucleophilic addition under photochemical condition: Dioxidation of gem‑difluoroalkenes with O2. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Mishra DR, Panda BS, Nayak S, Panda J, Mohapatra S. Recent Advances in the Synthesis of 5‐Membered
N
‐Heterocycles via Rhodium Catalysed Cascade Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Deepak R. Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bhabani S. Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
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14
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15
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Lu XY, Gao A, Ge MY, Xia ZJ, Liu QL, Tao TH, Sun XM. Stereoconvergent Synthesis of Monofluoroalkenes via Photoinduced Dual Decarboxylative Cross-Coupling of α-Fluoroacrylic Acids with Redox-Active Esters. J Org Chem 2022; 87:4654-4669. [PMID: 35313107 DOI: 10.1021/acs.joc.1c03088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, a new strategy for the synthesis of monofluoroalkenes via employing α-fluoroacrylic acids and N-hydroxyphthalimide (NHPI) redox-active esters as coupling partners has been developed. This decarboxylative reaction enabled the formation of C(sp2)-C(sp3) bonds to provide a practical and efficient approach for the construction of a variety of monofluoroalkenes, which are key structural motifs in organic chemistry, under mild reaction conditions. The protocol exhibited excellent functional group compatibility and delivered monofluoroalkene products with excellent Z-stereoselectivity. This work also provides a platform for the modification of complex biologically active molecules containing carboxylic acids.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering, Chuzhou University, Chuzhou 239000, China.,School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Ang Gao
- School of Materials and Chemical Engineering, Chuzhou University, Chuzhou 239000, China
| | - Meng-Yuan Ge
- School of Materials and Chemical Engineering, Chuzhou University, Chuzhou 239000, China
| | - Ze-Jie Xia
- School of Materials and Chemical Engineering, Chuzhou University, Chuzhou 239000, China
| | - Qi-Le Liu
- School of Materials and Chemical Engineering, Chuzhou University, Chuzhou 239000, China
| | - Ting-Hua Tao
- School of Materials and Chemical Engineering, Chuzhou University, Chuzhou 239000, China
| | - Xiao-Mei Sun
- School of Materials and Chemical Engineering, Chuzhou University, Chuzhou 239000, China
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16
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Lu XY, Ge MY, Tao TH, Sun XM, Gao MT, Bao ST, Liu QL, Xia ZJ, Xia J. Iron-catalyzed decarboxylative and oxidative decarbonylative cross-coupling: a new strategy for the synthesis of monofluoroalkenes. Org Chem Front 2022. [DOI: 10.1039/d1qo01567b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Herein, an iron(ii)-catalyzed decarboxylative and oxidative decarbonylative cross-coupling of α-fluoro cinnamic acids with aliphatic aldehydes is presented.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
- School of Chemistry and Chemical Engineering, AnHui University, He Fei, 230601, China
| | - Meng-Yuan Ge
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Ting-Hua Tao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Xiao-Mei Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Meng-Ting Gao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Shu-Ting Bao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Qi-Le Liu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Ze-Jie Xia
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Jing Xia
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
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17
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Hu Y, Liu X, Ren Z, Hu B, Li J. Csp3‒H Monofluoroalkenylation via Stereoselective C‒F Bond Cleavage. Chem Commun (Camb) 2022; 58:2734-2737. [DOI: 10.1039/d1cc06247f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical nickel- and photoredox-catalyzed Csp3‒H monofluoroalkenylation through chelation-assisted Csp2‒F bond cleavage of gem-difluoroalkenes has been developed, which provides an expedient access to the synthesis of tetrasubstituted fluoroalkenes with complete...
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18
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Sindhe H, Chaudhary B, Chowdhury N, Kamble A, Kumar V, Lad A, Sharma S. Recent advances in transition-metal catalyzed directed C–H functionalization with fluorinated building blocks. Org Chem Front 2022. [DOI: 10.1039/d1qo01544c] [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
This review focuses on the advances in transition-metal catalyzed reactions with fluorinated building blocks via directed C–H bond activation for the construction of diverse organic molecules with an insight into the probable mechanistic pathway.
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Affiliation(s)
- Haritha Sindhe
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Bharatkumar Chaudhary
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Neelanjan Chowdhury
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Akshay Kamble
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Vivek Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Aishwarya Lad
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
| | - Satyasheel Sharma
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Gandhinagar, Gujarat-382355, India
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19
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Song T, Tung CH, Xu Z. Synthesis of α-trifluoromethyl sulfides through fluorosulfuration of gem-difluoroalkenes. Org Chem Front 2022. [DOI: 10.1039/d2qo00391k] [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 new fluoro-sulfuration of gem-difluoroalkenes is demonstrated that occurs through a nucleophilic fluorination and subsequent interrupted electrophilic sulfuration cascade.
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Affiliation(s)
- Tingting Song
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, Shandong 250100, China
| | - Chen-Ho Tung
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, Shandong 250100, China
| | - Zhenghu Xu
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, Shandong 250100, China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, PR China
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20
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Cao CL, Zhang GX, Xue F, Deng HP. Photoinduced C–H monofluoroalkenylation with gem-difluoroalkenes through hydrogen atom transfer under batch and flow conditions. Org Chem Front 2022. [DOI: 10.1039/d1qo01689j] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A mild and effective protocol for the monofluoroalkenylation of C–H bonds with gem-difluoroalkenes through the synergetic merger of photoredox and bromine-based hydrogen atom transfer catalysis under batch and flow conditions is reported.
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Affiliation(s)
- Chen-Lin Cao
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Guang-Xu Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Fei Xue
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Hong-Ping Deng
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
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21
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Lu XY, Chen XK, Gao MT, Sun XM, Jiang RC, Wang JC, Yu LJ, Ge MY, Wei ZH, Liu Z. Copper-catalyzed direct monofluoroalkenylation of C(sp 3)–H bonds via decarboxylation of α-fluoroacrylic acids. Org Chem Front 2022. [DOI: 10.1039/d2qo00977c] [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
Herein, a protocol for the copper-catalyzed direct monofluoroalkenylation of C(sp3)–H bonds is reported.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
- School of Chemistry and Chemical Engineering, AnHui University, He Fei, 230601, China
| | - Xing-Ke Chen
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Meng-Ting Gao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Xiao-Mei Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Run-Chuang Jiang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Jun-Chao Wang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Li-Juan Yu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Meng-Yuan Ge
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Zheng-Huan Wei
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Zi Liu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
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22
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Zhao B, Prabagar B, Shi Z. Modern strategies for C–H functionalization of heteroarenes with alternative coupling partners. Chem 2021. [DOI: 10.1016/j.chempr.2021.08.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Wang Z, Zheng Z, Li P, Zhou C, Cai S, Xiao B, Wang L. Rhodium‐Catalyzed
Direct C—H Alkenylation of Indoles with Alkenyl Borates. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ze‐Tian Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University 8 Sanjiaohu Road Wuhan Hubei 430056 China
| | - Zi‐Ang Zheng
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University 8 Sanjiaohu Road Wuhan Hubei 430056 China
| | - Peng‐Jie Li
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University 8 Sanjiaohu Road Wuhan Hubei 430056 China
| | - Chun‐Ni Zhou
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University 8 Sanjiaohu Road Wuhan Hubei 430056 China
| | - Shao‐Jun Cai
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University 8 Sanjiaohu Road Wuhan Hubei 430056 China
| | - Biao Xiao
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University 8 Sanjiaohu Road Wuhan Hubei 430056 China
| | - Liang Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University 8 Sanjiaohu Road Wuhan Hubei 430056 China
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24
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Xu W, Zhang Q, Shao Q, Xia C, Wu M. Photocatalytic C−F Bond Activation of Fluoroarenes,
gem
‐Difluoroalkenes and Trifluoromethylarenes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100426] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wengang Xu
- College of New Energy China University of Petroleum China East 266580 Qingdao P. R. China
| | - Qiao Zhang
- College of Chemical Engineering State Key Laboratory of Heavy Oil Processing China University of Petroleum (China East) 266580 Qingdao P. R. China
| | - Qi Shao
- College of Chemical Engineering State Key Laboratory of Heavy Oil Processing China University of Petroleum (China East) 266580 Qingdao P. R. China
| | - Congjian Xia
- College of Chemical Engineering State Key Laboratory of Heavy Oil Processing China University of Petroleum (China East) 266580 Qingdao P. R. China
| | - Mingbo Wu
- College of New Energy China University of Petroleum China East 266580 Qingdao P. R. China
- College of Chemical Engineering State Key Laboratory of Heavy Oil Processing China University of Petroleum (China East) 266580 Qingdao P. R. China
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25
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Zhao B, Rogge T, Ackermann L, Shi Z. Metal-catalysed C-Het (F, O, S, N) and C-C bond arylation. Chem Soc Rev 2021; 50:8903-8953. [PMID: 34190223 DOI: 10.1039/c9cs00571d] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The formation of C-aryl bonds has been the focus of intensive research over the last decades for the construction of complex molecules from simple, readily available feedstocks. Traditionally, these strategies involve the coupling of organohalides (I, Br, Cl) with organometallic reagents (Mg, Zn, B, Si, Sn,…) such as Kumada-Corriu, Negishi, Suzuki-Miyaura, Hiyama and Sonogashira cross-couplings. More recently, alternative methods have provided access to these products by reactions with less reactive C-Het (F, O, S, N) and C-C bonds. Compared to traditional methods, the direct cleavage and arylation of these chemical bonds, the essential link in accessible feedstocks, has become increasingly important from the viewpoint of step-economy and functional-group compatibility. This comprehensive review aims to outline the development and advances of this topic, which was organized into (1) C-F bond arylation, (2) C-O bond arylation, (3) C-S bond arylation, (4) C-N bond arylation, and (5) C-C bond arylation. Substantial attention has been paid to the strategies and mechanistic investigations. We hope that this review can trigger chemists to discover more efficient methodologies to access arylation products by cleavage of these C-Het and C-C bonds.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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26
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Yang J, Shi W, Chen W, Gao H, Zhou Z, Yi W. Rh(III)-Catalyzed Chemoselective C-H Alkenylation and [5 + 1] Annulation with Gem-Difluoromethylene Enabled by the Distinctive Fluorine Effect. J Org Chem 2021; 86:9711-9722. [PMID: 34189921 DOI: 10.1021/acs.joc.1c01012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The efficient couplings of diverse N-arylureas and gem-difluoromethylene alkynes have been realized via Rh(III)-catalyzed chemoselective C-H alkenylation and [5 + 1] annulation, which were induced by the distinctive fluorine effect to provide the different coordination mode of the Rh(III) catalyst binding to the directing group, thereby giving the direct access to difluorinated 2-alkenyl arylureas and 3,4-dihydroquinazolin-2(1H)-ones bearing both an α-quaternary carbon center and a monofluoroalkenyl moiety with broad substrate compatibility and good functional group tolerance. The synthetic application in C-H alkenylation of the N-pyridylaniline, the late-stage [3 + 2] annulation, and the derivation of the obtained products has been also demonstrated to further strengthen the synthetic utility of the chemodivergent transformations.
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Affiliation(s)
- Jian Yang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P. R. China
| | - Wendi Shi
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P. R. China
| | - Weijie Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P. R. China
| | - Hui Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P. R. China
| | - Zhi Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P. R. China
| | - Wei Yi
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P. R. China
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27
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Wang C, Liu YC, Xu MY, Xiao B. Synthesis of Dialkyl-Substituted Monofluoroalkenes via Palladium-Catalyzed Cross-Coupling of Alkyl Carbagermatranes. Org Lett 2021; 23:4593-4597. [PMID: 34060856 DOI: 10.1021/acs.orglett.1c01289] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An unprecedented cross-coupling reaction of alkyl carbagermatranes with bromofluoroolefins to deliver dialkyl-substituted monofluoroalkenes was achieved. This cross-coupling reaction was performed under base/additive-free conditions with excellent functional group tolerance, therefore offering an opportunity for challenging dialkyl-substituted monofluoroalkenes. The preparation of bioactive agent analogues including an antitubercular agent mimic and a COX-2 inhibitor analogue and the late-stage fluoroalkenylation of drug-molecule derivatives proved the utility of this strategy.
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Affiliation(s)
- Chao Wang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yu-Chao Liu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Meng-Yu Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Bin Xiao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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28
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Jambu S, Shambhavi CN, Jeganmohan M. Aerobic Oxidative C-H Olefination of Arylamides with Unactivated Olefins via a Rh(III)-Catalyzed C-H Activation. Org Lett 2021; 23:2964-2970. [PMID: 33818094 DOI: 10.1021/acs.orglett.1c00646] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient Rh(III)-catalyzed aerobic oxidative C-H alkenylation of arylamides with unactivated alkenes is described. The olefination reaction was compatible with various substituted arylamides including primary, secondary, and tertiary as well as functionalized unactivated olefins. Meanwhile, ortho mono/bis-alkylated arylamides were synthesized in the reaction of arylamides with norbornene. In the alkenylation reaction, molecular oxygen along with organic acid was used to regenerate the active catalyst for the next catalytic cycle. A possible reaction mechanism involving C-H activation/insertion/β-hydride elimination followed by aerobic oxidation was proposed and supported by the deuterium labeling studies.
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Affiliation(s)
- Subramanian Jambu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | | | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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29
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Wu FP, Yuan Y, Liu J, Wu XF. Pd/Cu-Catalyzed Defluorinative Carbonylative Coupling of Aryl Iodides and gem-Difluoroalkenes: Efficient Synthesis of α-Fluorochalcones. Angew Chem Int Ed Engl 2021; 60:8818-8822. [PMID: 33538042 DOI: 10.1002/anie.202017365] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Indexed: 01/12/2023]
Abstract
An unprecedented and challenging defluorinative carbonylation was achieved. Enabled by a Pd/Cu cooperative catalyst system, the first example of defluorinative carbonylative coupling has been established. With gem-difluoroalkenes and aryl iodides as the substrates, this methodology offers flexible and facile access to privileged α-fluorochalcones under mild reaction conditions in moderate-to-excellent yields. Mechanistic studies indicated transmetalation between palladium and copper intermediates as a crucial step of the catalytic cycle.
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Affiliation(s)
- Fu-Peng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Yang Yuan
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Jiawang Liu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, 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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30
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Wu F, Yuan Y, Liu J, Wu X. Pd/Cu‐Catalyzed Defluorinative Carbonylative Coupling of Aryl Iodides and
gem
‐Difluoroalkenes: Efficient Synthesis of α‐Fluorochalcones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fu‐Peng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Yang Yuan
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Jiawang Liu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao‐Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock 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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31
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Zhong X, Lin S, Gao H, Liu FX, Zhou Z, Yi W. Rh(III)-Catalyzed Redox-Neutral C-H Activation/[3 + 2] Annulation of N-Phenoxy Amides with Propargylic Monofluoroalkynes. Org Lett 2021; 23:2285-2291. [PMID: 33657804 DOI: 10.1021/acs.orglett.1c00418] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An efficient and redox-neutral Rh(III)-catalyzed C-H activation/[3 + 2] annulation of N-phenoxy amides with propargylic monofluoroalkynes has been realized to afford 3-alkylidene dihydrobenzofurans with an interesting α-quaternary carbon center. Combined experimental and computational mechanistic studies revealed that a Rh(III)-Rh(V)-Rh(III) catalytic pathway/uncatalyzed intramolecular [H···F] bonding-assisted SN2'-type substitution cascade might be involved in the catalytic cycle, thereby enabling an excellent site-/regioselectivity with broad substrate/functional group compatibility, including the complete retention of the highly strained cyclobutyl structure in the 3-position.
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Affiliation(s)
- Xiuhua Zhong
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Shuang Lin
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Fu-Xiaomin Liu
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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32
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Chen K, Chen W, Chen F, Zhang H, Xu H, Zhou Z, Yi W. Synthesis of 2-aminobenzofurans via base-mediated [3 + 2] annulation of N-phenoxy amides with gem-difluoroalkenes. Org Chem Front 2021. [DOI: 10.1039/d1qo00709b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Efficient metal-free [3 + 2] annulation of N-phenoxy amides with gem-difluoroalkenes has been realized for the assembly of 2-aminobenzofuran derivatives with potent cytotoxicity against cancer cell lines and application potential for DELs.
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Affiliation(s)
- Kaifeng Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & the Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Weijie Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & the Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Fangyuan Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & the Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Haiman Zhang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & the Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Huiying Xu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & the Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Zhi Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & the Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Wei Yi
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & the Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- P. R. China
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33
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Kumar P, Nagtilak PJ, Kapur M. Transition metal-catalyzed C–H functionalizations of indoles. NEW J CHEM 2021. [DOI: 10.1039/d1nj01696b] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarises a wide range of transformations on the indole skeleton, including arylation, alkenylation, alkynylation, acylation, nitration, borylation, and amidation, using transition-metal catalyzed C–H functionalization as the key step.
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Affiliation(s)
- Pravin Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Prajyot Jayadev Nagtilak
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
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34
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Shu B, Chen SY, Deng NX, Zheng T, Xie H, Xie XL, Wu JQ, Cao H, Zhang SS. Rhodium( iii)-catalyzed C–H/C–F activation sequence: expedient and divergent synthesis of 2-benzylated indoles and 2,2′-bis(indolyl)methanes. Org Chem Front 2021. [DOI: 10.1039/d1qo00462j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel method for the construction of fluorinated 2-benzylated indoles and 2,2’-bis(indolyl)methanes was developed via Rh(iii)-catalyzed C–H/C–F activation of arenes with employing 3,3-difluoro-2-exo-methylidene indolines as cross-coupling partner.
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Affiliation(s)
- Bing Shu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
- Center for Drug Research and Development
| | - Shao-Yong Chen
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
| | - Nan-Xiang Deng
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Tao Zheng
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Hui Xie
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Xiao-Ling Xie
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
- Guangdong Pharmaceutical University
- Zhongshan
- P. R. China
| | - Shang-Shi Zhang
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
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35
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Liu X, Lin J, Zhuang C, Zhong J, Song D, Zhao J, Cao H. Switchable hydroxysulfonyloxylation and defluorination–decarboxylation sulfonylation of gem-difluoroalkenes with sodium sulfinate via aerobic oxidation. Org Chem Front 2021. [DOI: 10.1039/d1qo01005k] [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 novel and attractive aerobic oxidative hydroxysulfonyloxylation of gem-difluoroalkenes with sodium sulfinate via free radical addition has been developed.
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Affiliation(s)
- Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Jiatong Lin
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Canzhan Zhuang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Jinling Zhong
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Dan Song
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Jiaji Zhao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
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36
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Jiang X, Wang G, Zheng Z, Yu X, Hong Y, Xia H, Yu C. Autocatalytic Synthesis of Thioesters via Thiocarbonylation of gem-Difluoroalkenes. Org Lett 2020; 22:9762-9766. [PMID: 33285069 DOI: 10.1021/acs.orglett.0c03860] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report a new method for the synthesis of acyethanethioates via thiocarbonylation of gem-difluoroalkenes with thiols. This reaction provides a new pathway to prepare thioesters under mild conditions without the use of any additives. Mechanistic studies revealed that in situ generated HF facilitated the C-F bond cleavage in an autocatalytic manner.
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Affiliation(s)
- Xinpeng Jiang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Guan Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Zicong Zheng
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xiaohui Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Ye Hong
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Haoqi Xia
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Chuanming Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
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37
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Yuan K, Feoktistova T, Cheong PHY, Altman RA. Arylation of gem-difluoroalkenes using a Pd/Cu Co-catalytic system that avoids β-fluoride elimination. Chem Sci 2020; 12:1363-1367. [PMID: 34163899 PMCID: PMC8179108 DOI: 10.1039/d0sc05192f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
PdII/CuI co-catalyze an arylation reaction of gem-difluoroalkenes using arylsulfonyl chlorides to deliver α,α-difluorobenzyl products. The reaction proceeds through a β,β-difluoroalkyl-Pd intermediate that typically undergoes unimolecular β-F elimination to deliver monofluorinated alkene products in a net C-F functionalization reaction. However to avoid β-F elimination, we offer the β,β-difluoroalkyl-Pd intermediate an alternate low-energy route involving β-H elimination to ultimately deliver difluorinated products in a net arylation/isomerization sequence. Overall, this reaction enables exploration of new reactivities of unstable fluorinated alkyl-metal species, while also providing new opportunities for transforming readily available fluorinated alkenes into more elaborate substructures.
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Affiliation(s)
- Kedong Yuan
- Tianjin Key Laboratory of Advanced Functional Porous Materials, Institute for New Energy Materials & Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology Tianjin 300384 P. R. China
| | - Taisiia Feoktistova
- Department of Chemistry, Oregon State University 153 Gilbert Hall Corvallis OR USA
| | - Paul Ha-Yeon Cheong
- Department of Chemistry, Oregon State University 153 Gilbert Hall Corvallis OR USA
| | - Ryan A Altman
- Department of Medicinal Chemistry and Molecular Pharmacology, Department of Chemistry, Purdue University West Lafayette IN 47907 USA
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38
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Chandra D, Dhiman AK, Parmar D, Sharma U. Alkylation, alkenylation, and alkynylation of heterocyclic compounds through group 9 (Co, Rh, Ir) metal-catalyzed C-H activation. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2020. [DOI: 10.1080/01614940.2020.1839849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Devesh Chandra
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
| | - Ankit Kumar Dhiman
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
| | - Diksha Parmar
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
| | - Upendra Sharma
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., India
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39
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Gao H, Lin S, Zhang S, Chen W, Liu X, Yang G, Lerner RA, Xu H, Zhou Z, Yi W. gem
‐Difluoromethylene Alkyne‐Enabled Diverse C−H Functionalization and Application to the on‐DNA Synthesis of Difluorinated Isocoumarins. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202013052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hui Gao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Shuang Lin
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Shuning Zhang
- Shanghai Institute for Advanced Immunochemical Studies & School of Life Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Weijie Chen
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Xiawen Liu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Guang Yang
- Shanghai Institute for Advanced Immunochemical Studies & School of Life Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Richard A. Lerner
- Department of Chemistry Scripps Research Institute La Jolla CA 92037 USA
| | - Hongtao Xu
- Shanghai Institute for Advanced Immunochemical Studies & School of Life Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Zhi Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
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40
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Gao H, Lin S, Zhang S, Chen W, Liu X, Yang G, Lerner RA, Xu H, Zhou Z, Yi W. gem
‐Difluoromethylene Alkyne‐Enabled Diverse C−H Functionalization and Application to the on‐DNA Synthesis of Difluorinated Isocoumarins. Angew Chem Int Ed Engl 2020; 60:1959-1966. [DOI: 10.1002/anie.202013052] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Hui Gao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Shuang Lin
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Shuning Zhang
- Shanghai Institute for Advanced Immunochemical Studies & School of Life Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Weijie Chen
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Xiawen Liu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Guang Yang
- Shanghai Institute for Advanced Immunochemical Studies & School of Life Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Richard A. Lerner
- Department of Chemistry Scripps Research Institute La Jolla CA 92037 USA
| | - Hongtao Xu
- Shanghai Institute for Advanced Immunochemical Studies & School of Life Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Zhi Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation & Molecular Target and Clinical Pharmacology the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P. R. China
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41
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Carral-Menoyo A, Sotomayor N, Lete E. Cp*Co(III)-Catalyzed C-H Hydroarylation of Alkynes and Alkenes and Beyond: A Versatile Synthetic Tool. ACS OMEGA 2020; 5:24974-24993. [PMID: 33043175 PMCID: PMC7542607 DOI: 10.1021/acsomega.0c03639] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/02/2020] [Indexed: 05/03/2023]
Abstract
The use of earth-abundant first-row transition metals, such as cobalt, in C-H activation reactions for the construction and functionalization of a wide variety of structures has become a central topic in synthetic chemistry over the last few years. In this context, the emergence of cobalt catalysts bearing pentamethylcyclopentadienyl ligands (Cp*) has had a major impact on the development of synthetic methodologies. Cp*Co(III) complexes have been proven to possess unique reactivity compared, for example, to their Rh(III) counterparts, obtaining improved chemo- or regioselectivities, as well as yielding new reactivities. This perspective is focused on recent advances on the alkylation and alkenylation reactions of (hetero)arenes with alkenes and alkynes under Cp*Co(III) catalysis.
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42
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Zhang L, Deng K, Wu G, Yang J, Tang S, Fu X, Xia C, Ji Y. Ruthenium(II)-Catalyzed α-Fluoroalkenylation of Oxime Ethers with gem-Difluorostyrenes via C-H Activation and C-F Cleavage. J Org Chem 2020; 85:12670-12681. [PMID: 32885652 DOI: 10.1021/acs.joc.0c01842] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel route for ruthenium(II)-catalyzed α-fluoroalkenylation of oxime ethers with gem-difluorostyrenes via C-H activation and C-F cleavage has been developed for the first time. Notably, the alkenyl units of products exhibit exclusive Z-configuration. This reaction features a broad substrate scope and good functional group tolerance. A plausible reaction mechanism is confirmed by an available cycloruthenated intermediate. Besides, the O-methyl oximyl-directing group can be readily removed to access the α-fluoroalkenylated acetophenones.
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Affiliation(s)
- Lili Zhang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Kezuan Deng
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Gaorong Wu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Jinyue Yang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Shibiao Tang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xiaopan Fu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Chengcai Xia
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, P. R. China
| | - Yafei Ji
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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43
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Orsi DL, Douglas JT, Sorrentino JP, Altman RA. Cobalt-Catalyzed Selective Unsymmetrical Dioxidation of gem-Difluoroalkenes. J Org Chem 2020; 85:10451-10465. [PMID: 32697905 DOI: 10.1021/acs.joc.0c00415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
gem-Difluoroalkenes represent valuable synthetic handles for organofluorine chemistry; however, most reactions of this substructure proceed through reactive intermediates prone to eliminate a fluorine atom and generate monofluorinated products. Taking advantage of the distinct reactivity of gem-difluoroalkenes, we present a cobalt-catalyzed regioselective unsymmetrical dioxygenation of gem-difluoroalkenes using phenols and molecular oxygen, which retains both fluorine atoms and provides β-phenoxy-β,β-difluorobenzyl alcohols. Mechanistic studies suggest that the reaction operates through a radical chain process initiated by Co(II)/O2/phenol and quenched by the Co-based catalyst. This mechanism enables the retention of both fluorine atoms, which contrasts most transition-metal-catalyzed reactions of gem-difluoroalkenes that typically involve defluorination.
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Affiliation(s)
- Douglas L Orsi
- Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Justin T Douglas
- Molecular Structures Group, Nuclear Magnetic Resonance Laboratory, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Jacob P Sorrentino
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Ryan A Altman
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47907, United States.,Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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44
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Wang N, Yang Q, Deng Z, Mao X, Peng Y. Rhodium-Catalyzed Merging of 2-Arylquinazolinone and 2,2-Difluorovinyl Tosylate: Diverse Synthesis of Monofluoroolefin Quinazolinone Derivatives. ACS OMEGA 2020; 5:14635-14644. [PMID: 32596601 PMCID: PMC7315571 DOI: 10.1021/acsomega.0c01344] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/20/2020] [Indexed: 05/07/2023]
Abstract
An efficient method for the synthesis of 2-(o-monofluoroalkenylaryl)quinazolinone derivatives was developed. In this context, the quinazolinone ring served as the inherent directing group, 2,2-difluorovinyl tosylate was used as the monofluoroolefin synthon, and Rh(III)-catalyzed C-H bond difluorovinylation of 2-arylquinazolinons was performed to give the corresponding monofluoroalkene-containing quinazolinons in yields of 65-92%. The method is characterized by broad synthetic utility, mild conditions, and high efficiency.
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Affiliation(s)
- Ning Wang
- Key Laboratory of Functional Small
Organic Molecules, Ministry of Education, Jiangxi Province’s
Key Laboratory of Green Chemistry, Jiangxi
Normal University, Nanchang 330022, China
| | - Qin Yang
- Key Laboratory of Functional Small
Organic Molecules, Ministry of Education, Jiangxi Province’s
Key Laboratory of Green Chemistry, Jiangxi
Normal University, Nanchang 330022, China
| | - Zhihong Deng
- Key Laboratory of Functional Small
Organic Molecules, Ministry of Education, Jiangxi Province’s
Key Laboratory of Green Chemistry, Jiangxi
Normal University, Nanchang 330022, China
| | - Xuechun Mao
- Key Laboratory of Functional Small
Organic Molecules, Ministry of Education, Jiangxi Province’s
Key Laboratory of Green Chemistry, Jiangxi
Normal University, Nanchang 330022, China
| | - Yiyuan Peng
- Key Laboratory of Functional Small
Organic Molecules, Ministry of Education, Jiangxi Province’s
Key Laboratory of Green Chemistry, Jiangxi
Normal University, Nanchang 330022, China
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45
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Ma Q, Wang Y, Tsui GC. Stereoselective Palladium‐Catalyzed C−F Bond Alkynylation of Tetrasubstituted
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2020; 59:11293-11297. [DOI: 10.1002/anie.202002219] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/29/2020] [Indexed: 01/02/2023]
Affiliation(s)
- Qiao Ma
- Department of Chemistry The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR Hong Kong
| | - Yanhui Wang
- Department of Chemistry The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR Hong Kong
| | - Gavin Chit Tsui
- Department of Chemistry The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR Hong Kong
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46
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Ma Q, Wang Y, Tsui GC. Stereoselective Palladium‐Catalyzed C−F Bond Alkynylation of Tetrasubstituted
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002219] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Qiao Ma
- Department of Chemistry The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR Hong Kong
| | - Yanhui Wang
- Department of Chemistry The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR Hong Kong
| | - Gavin Chit Tsui
- Department of Chemistry The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR Hong Kong
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47
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Lu CJ, Yu X, Chen YT, Song QB, Wang H. Indolizine synthesis via copper-catalyzed cyclization of gem-difluoroalkenes and 2-(pyridin-2-yl)acetate derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo00553c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel and versatile approach to construct substituted indolizines through copper-catalyzed coupling cyclization of 2-(pyridin-2-yl)acetate with gem-difluoroalkenes has been developed.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemistry and Chemical Engineering
- Qingdao University
- China
- College of Chemical Engineering
- Zhejiang University of Technology
| | - Xin Yu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Yu-Ting Chen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Qing-Bao Song
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Hong Wang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
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48
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Yao J, Kong L, Li X. Rhodium-catalyzed coupling of arenes and fluorinated α-diazo diketones: synthesis of chromones. Chem Commun (Camb) 2020; 56:13169-13172. [DOI: 10.1039/d0cc05664b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Rh(iii)-Catalyzed synthesis of chromones using arenes and fluorinated diazo reagents via C–H activation, carbene insertion, and uncatalyzed intramolecular nucleophilic aromatic substitution.
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Affiliation(s)
- Jiayi Yao
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Lingheng Kong
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
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49
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Zhang D, Fang Z, Cai J, Liu C, He W, Duan J, Qin N, Yang Z, Guo K. The copper(ii)-catalyzed and oxidant-promoted regioselective C-2 difluoromethylation of indoles and pyrroles. Chem Commun (Camb) 2020; 56:8119-8122. [DOI: 10.1039/d0cc03345f] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel and efficient approach for the highly selective C-2 difluoromethylation of indole derivatives was developed by using sodium difluoromethylsulfinate (HCF2SO2Na) as the source of difluoromethyl groups and a Cu(ii) complex as the catalyst.
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Affiliation(s)
- Dong Zhang
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
| | - Jinlin Cai
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
| | - Wei He
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
| | - Jindian Duan
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
| | - Ning Qin
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
| | - Zhao Yang
- College of Engineering China Pharmaceutical University, 24 Tongjiaxiang
- Nanjing
- China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S
- Nanjing
- China
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50
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Chen G, Li C, Peng J, Yuan Z, Liu P, Liu X. Silver-promoted decarboxylative radical addition/annulation of oxamic acids with gem-difluoroolefins: concise access to CF 2-containing 3,4-dihydroquinolin-2-ones. Org Biomol Chem 2019; 17:8527-8532. [PMID: 31512696 DOI: 10.1039/c9ob01236b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described is a silver-promoted decarboxylative radical addition/annulation of oxamic acids with gem-difluoroalkenes. This reaction proceeded under mild reaction conditions with broad functional group compatibility, enabling the convenient synthesis of various structurally diverse CF2-containing 3,4-dihydroquinolin-2-ones that might find applications in medical chemistry.
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Affiliation(s)
- Guojun Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, P. R. China.
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