1
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Yuan J, Shen L, Guo N, Yin Y, Yang P, Yang L, Xiao Y, Zhang S. Visible-Light-Induced Cascade Cyclization of 1-Acryloyl-2-cyanoindole: Access of Difluoroalkylated Pyrrolo[1,2- a]indolediones. J Org Chem 2023; 88:16598-16608. [PMID: 37948397 DOI: 10.1021/acs.joc.3c02183] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
An effective method for accessing diverse difluoroalkylated pyrrolo[1,2-a]indolediones via visible-light-induced PhI(OAc)2-promoted cascade difluoroalkylation/cyclization reaction under mild conditions has been established. This method is noteworthy for its use of DMSO-H2O as a green medium at room temperature and avoidance of photocatalysts. The reactions are straightforward to execute and convenient to expand on, provide good to excellent yields, and have good functional group tolerance.
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Affiliation(s)
- Jinwei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Lu Shen
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Na Guo
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Yanli Yin
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Pengyuan Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Liangru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Yongmei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Shouren Zhang
- Henan Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, P. R. China
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2
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Borrel J, Waser J. Azido-alkynylation of alkenes through radical-polar crossover. Chem Sci 2023; 14:9452-9460. [PMID: 37712015 PMCID: PMC10498506 DOI: 10.1039/d3sc03309k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/10/2023] [Indexed: 09/16/2023] Open
Abstract
We report an azido-alkynylation of alkenes allowing a straightforward access to homopropargylic azides by combining hypervalent iodine reagents and alkynyl-trifluoroborate salts. The design of a photocatalytic redox-neutral radical polar crossover process was key to develop this transformation. A variety of homopropargylic azides possessing electron-rich and -poor aryls, heterocycles or ether substituents could be accessed in 34-84% yield. The products are synthetically useful building blocks that could be easily transformed into pyrroles or bioactive amines.
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Affiliation(s)
- Julien Borrel
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne EPFL SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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3
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Zhang C, Yu Z, Ding Y, Shi Y, Xie Y. Metal-free electrochemistry promoted radical cascade cyclization to access CF 3-containing benzimidazo[2,1- a]isoquinolin-6(5 H)-ones. Org Biomol Chem 2023; 21:6715-6718. [PMID: 37462425 DOI: 10.1039/d3ob00854a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Using CF3SO2Na as the CF3 radical source, an eco-friendly approach for electrochemistry-mediated radical cascade cyclization of N-methacryloyl-2-phenylbenzoimidazoles was described. This reaction features mild reaction conditions, readily available substrates, and moderate to good yields through the construction of two C-C bonds in one step.
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Affiliation(s)
- Changjun Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Zhichen Yu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Yuxin Ding
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Yuan Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Yuanyuan Xie
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, China.
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, China
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Hangzhou, 310014, China
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4
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Sun Q, Li H, Chen X, Hao J, Deng H, Jiang H. Silver-Promoted Radical Cascade Aryldifluoromethylation/Cyclization of 2-Allyloxybenzaldehydes for the Synthesis of 3-Aryldifluoromethyl-Containing Chroman-4-one Derivatives. Molecules 2023; 28:molecules28083578. [PMID: 37110812 PMCID: PMC10142801 DOI: 10.3390/molecules28083578] [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: 03/23/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
A convenient silver-promoted radical cascade aryldifluoromethylation/cyclization of 2-allyloxybenzaldehydes has been developed. Experimental studies disclosed that the addition of aryldifluoromethyl radicals in situ produced from easily accessible gem-difluoroarylacetic acids to unactivated double bonds in 2-allyloxybenzaldehyde was an effective route to access a series of 3-aryldifluoromethyl-containing chroman-4-one derivatives in moderate to good yields under mild reaction conditions.
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Affiliation(s)
- Qianqian Sun
- Department of Chemistry, Shanghai University, Shanghai 200444, China
| | - Hongxiao Li
- Department of Chemistry, Shanghai University, Shanghai 200444, China
| | - Xingyu Chen
- Department of Chemistry, Shanghai University, Shanghai 200444, China
| | - Jian Hao
- Department of Chemistry, Shanghai University, Shanghai 200444, China
| | - Hongmei Deng
- Laboratory for Microstructures, Shanghai University, Shanghai 200444, China
| | - Haizhen Jiang
- Department of Chemistry, Shanghai University, Shanghai 200444, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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5
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Hendy CM, Pratt CJ, Jui NT, Blakey SB. Defluoroalkylation of Trifluoromethylarenes with Hydrazones: Rapid Access to Benzylic Difluoroarylethylamines. Org Lett 2023; 25:1397-1402. [PMID: 36848497 PMCID: PMC10012270 DOI: 10.1021/acs.orglett.3c00126] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Here, we report an efficient and modular approach toward the formation of difluorinated arylethylamines from simple aldehyde-derived N,N-dialkylhydrazones and trifluoromethylarenes (CF3-arenes). This method relies on selective C-F bond cleavage via reduction of the CF3-arene. We show that a diverse set of CF3-arenes and CF3-heteroarenes react smoothly with a range of aryl and alkyl hydrazones. The β-difluorobenzylic hydrazine product can be selectively cleaved to form the corresponding benzylic difluoroarylethylamines.
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Affiliation(s)
- Cecilia M Hendy
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Cameron J Pratt
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Nathan T Jui
- Loxo Oncology, Boulder, Colorado 80301, United States
| | - Simon B Blakey
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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6
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Gutiérrez-Bonet Á, Liu W. Synthesis of Alkyl Fluorides and Fluorinated Unnatural Amino Acids via Photochemical Decarboxylation of α-Fluorinated Carboxylic Acids. Org Lett 2023; 25:483-487. [PMID: 36652608 DOI: 10.1021/acs.orglett.2c04144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Leveraging α-fluoroalkyl or fluorobenzyl radicals to introduce fluorinated motifs allows for the rapid preparation of fluorine-containing building blocks. Herein, we report the generation of α-fluoroalkyl or fluorobenzyl radicals from readily available α-fluorocarboxylic acids under mild reaction conditions and their utilization in the Giese-type addition on Michael acceptors and dehydroamino acids, resulting in the preparation of mono- and difluorinated Michael addition adducts and unnatural fluorinated amino acids.
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Affiliation(s)
- Álvaro Gutiérrez-Bonet
- Process Research & Development, MRL, Merck & Co., Inc., West Point, Pennsylvania 19486, United States
| | - Wenbin Liu
- Process Research & Development, MRL, Merck & Co., Inc., West Point, Pennsylvania 19486, United States
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7
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Yuan JW, Zhang MY, Liu Y, Hu WY, Yang LR, Xiao YM, Diao XQ, Zhang SR, Mao J. Transition-metal-free radical difluorobenzylation/cyclization of unactivated alkenes: access to ArCF 2-substituted ring-fused quinazolinones. Org Biomol Chem 2022; 20:9722-9733. [PMID: 36440712 DOI: 10.1039/d2ob01904c] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A mild and efficient transition-metal-free radical difluorobenzylation/cyclization of unactivated alkenes toward the synthesis of difluorobenzylated polycyclic quinazolinone derivatives with easily accessible α,α-difluoroarylacetic acids has been developed. This transformation has the advantages of wide functional group compatibility, a broad substrate scope, and operational simplicity. This methodology provided a highly attractive access to pharmaceutically valuable ArCF2-containing polycyclic quinazolinones.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Mei-Yue Zhang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Yan Liu
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Wen-Yu Hu
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Yong-Mei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Xiao-Qiong Diao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Shou-Ren Zhang
- Henan Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, China.
| | - Jian Mao
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou 450001, P. R. China
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8
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The radical reaction of ethynylbenziodoxolone (EBX) reagents with pentafluorosulfanyl chloride: New approach to SF5-substituted alkynes. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.110018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Chen Z, Huang X, Sun J, Liu Y, Li Z. Metal‐free Cascade Radical Cyclization of
N
‐Methylacrylyl‐2‐phenylbenzimidazole: Construction of Aryldifluoromethylated Benzimidazole[2,1‐
a
]
iso
‐Quinoline‐6(5
H
)‐ketone. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhiwei Chen
- College of Pharmaceutical Sciences Zhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou P. R. China
| | - Xiaoxiao Huang
- College of Pharmaceutical Sciences Zhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou P. R. China
| | - Jie Sun
- College of Pharmaceutical Sciences Zhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou P. R. China
| | - Yanmin Liu
- College of Pharmaceutical Sciences Zhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou P. R. China
| | - Ziwei Li
- College of Pharmaceutical Sciences Zhejiang University of Technology. Chao Wang Road 18th 310014 Hangzhou P. R. China
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10
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Li P, Yang X, Liu J, Zhang Y, Wang L, Gao Y. Photo‐driven Radical Addition/Cyclization of Biaryl Vinyl Ketones with CF3SO2Na and ArCF2CO2K without an External Photocatalyst. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pinhua Li
- Huaibei Normal University Department of Chemistry Dongshan Road 235000 Huaibei CHINA
| | - Xingyu Yang
- Huaibei Normal University Department of Chemistry Huaibei CHINA
| | - Jie Liu
- Huaibei Normal University Department of Chemistry Huaibei CHINA
| | - Yicheng Zhang
- Huaibei Normal University Department of Chemistry Huaibei CHINA
| | - Lei Wang
- Huaibei Normal University Department of Chemistry Huaibei CHINA
| | - Yanhui Gao
- Huaibei Normal University Department of chemistry CHINA
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11
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Peng Y, Gong H, Wang J, Chen H, Deng H, Hao J, Wan W. Regiospecific C2‐Difluoroalkylation on Chromone via Transition‐Metal‐free Oxidative Decarboxylation of Aryldifluoroacetic acids. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yi Peng
- Shanghai University Department of chemistry CHINA
| | - Haiying Gong
- Shanghai University Department of chemistry CHINA
| | - Juan Wang
- Shanghai University Department of chemistry CHINA
| | - Hua Chen
- Shanghai University Department of chemistry CHINA
| | - Hongmei Deng
- Shanghai University laboratory of Microstructures CHINA
| | - Jian Hao
- Shanghai University Department of chemistry CHINA
| | - Wen Wan
- Shanghai University of Science and Technology: Shanghai University Deptartment of Chemistry Shangda Road 99 200444 Shanghai CHINA
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12
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Guo X, Li P, Wang Q, Wang Q, Wang L. Remote Selective Decarboxylative Difluoroarylmethylation of 8-Aminoquinolines under Transition Metal-Free Conditions. Org Chem Front 2022. [DOI: 10.1039/d1qo01912k] [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 facile transition metal-free decarboxylative C4 selective C-H difluoroarylmethylation of 8-aminoquinolines has been developed. This strategy proceeds under simple aqueous conditions and displays a broad substrate scope and excellent functional...
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13
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Zhu Y, Xiao T, Xia D, Yang W. Recent Advances in the Decarboxylative Fluoroalkylation of Fluoroalkyl Carboxylic Acids. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Behera BK, Sahu AK, Devi NR, Saikia AK. K 2S 2O 8-Mediated Synthesis of Highly Functionalized Pyrroles via Oxidative Self-Dimerization of N-Propargylamines. J Org Chem 2021; 86:12481-12493. [PMID: 34463507 DOI: 10.1021/acs.joc.1c00471] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient methodology has been developed for the synthesis of tetra- and pentasubstituted pyrroles via oxidative self-dimerization of N-propargylamines catalyzed by silver benzoate in the presence of K2S2O8 in good yields. The protocol provides a simple route for the synthesis of both tetra- and pentasubstituted pyrroles with two carbonyl groups in the side chain. The methodology can be extended toward the synthesis of pyrrolo[3,4-d]pyridazine.
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Affiliation(s)
- Bipin Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Archana Kumari Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Ngangbam Renubala Devi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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15
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Zhang Y, Wang Q, Peng Y, Gong H, Chen H, Deng H, Hao J, Wan W. Metal-free, oxidative decarboxylation of aryldifluoroacetic acid with the formation of the ArS-CF 2 bond. Org Biomol Chem 2021; 19:7024-7030. [PMID: 34328491 DOI: 10.1039/d1ob01165k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A metal-free, oxidative decarboxylative reaction of aryldifluoroacetic acids with diaryl disulfides or thiols under mild reaction conditions has been developed. This is an efficient and straightforward radical cross-coupling method for the synthesis of diverse aryldifluoromethylthio ethers in moderate to excellent yields.
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Affiliation(s)
- Yifang Zhang
- Department of Chemistry, Shanghai University, Shanghai, China.
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16
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17
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Xiao P, Pannecoucke X, Bouillon JP, Couve-Bonnaire S. Wonderful fusion of organofluorine chemistry and decarboxylation strategy. Chem Soc Rev 2021; 50:6094-6151. [PMID: 34027960 DOI: 10.1039/d1cs00216c] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Decarboxylation strategy has been emerging as a powerful tool for the synthesis of fluorine-containing organic compounds that play important roles in various fields such as pharmaceuticals, agrochemicals, and materials science. Considerable progress in decarboxylation has been made over the past decade towards the construction of diverse valuable fluorinated fine chemicals for which the fluorinated part can be brought in two ways. The first way is described as the reaction of non-fluorinated carboxylic acids (and their derivatives) with fluorinating reagents, as well as fluorine-containing building blocks. The second way is dedicated to the exploration and the use of fluorine-containing carboxylic acids (and their derivatives) in decarboxylative transformations. This review aims to provide a comprehensive summary of the development and applications of decarboxylative radical, nucleophilic and cross-coupling strategies in organofluorine chemistry.
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Affiliation(s)
- Pan Xiao
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | - Xavier Pannecoucke
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
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18
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Wang P, Du P, Sun Q, Zhang J, Deng H, Jiang H. Silver-catalyzed decarboxylative radical allylation of α,α-difluoroarylacetic acids for the construction of CF 2-allyl bonds. Org Biomol Chem 2021; 19:2023-2029. [PMID: 33594399 DOI: 10.1039/d0ob02546a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient silver-catalyzed method of decarboxylative radical allylation of α,α-difluoroarylacetic acids to build CF2-allyl bonds has been developed. Using allylsulfone as an allyl donor, α,α-difluorine substituted arylacetic acids bearing various functional groups are successfully allylated to access a series of 3-(α,α-difluorobenzyl)-1-propylene compounds in moderate to excellent yields in aqueous CH3CN solution under the mild conditions. Experimental studies disclosed that the α-fluorine substitution of arylacetic acid has a great influence on free radical activity and reactivity.
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Affiliation(s)
- Pingyang Wang
- Department of Chemistry, Shanghai University, Shanghai, 200444, PR China.
| | - Pengcheng Du
- Department of Chemistry, Shanghai University, Shanghai, 200444, PR China.
| | - Qianqian Sun
- Department of Chemistry, Shanghai University, Shanghai, 200444, PR China.
| | - Jianhua Zhang
- Key Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai University, Shanghai, 200072, PR China
| | - Hongmei Deng
- Laboratory for Microstructures, Shanghai University, Shanghai, 200444, PR China
| | - Haizhen Jiang
- Department of Chemistry, Shanghai University, Shanghai, 200444, PR China. and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, PR China
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19
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Radical coupling of arylthiodifluoroacetic acids and ethynylbenziodoxolone (EBX) reagents to access arylthiodifluoromethylated alkynes. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2020.109715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Mei W, Kong Y, Yan G. Synthetic applications of α,α-difluoroarylacetic acids and salts via decarboxylative functionalization. Org Chem Front 2021. [DOI: 10.1039/d1qo00775k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
α,α-Difluoroarylacetic acids are stable, inexpensive and readily available building blocks which can be used to access various difluoromethylated aryl motifs via decarboxylative functionalization for the formation of carbon–carbon and carbon-heteroatom (F, O, S) bonds.
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Affiliation(s)
- Wenqiang Mei
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Yilin Kong
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Guobing Yan
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
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21
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Karmakar S, Das P, Kundu S. Silver-catalyzed tandem 5- and 6- endo-cyclizations via concomitant yne-ol-imine activation: selective entry to 2-aryldihydrofuroquinolines. NEW J CHEM 2021. [DOI: 10.1039/d1nj02643g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ag(i)-catalyzed domino imination-intramolecular bi-heterocyclization-aromatization cascade has been developed to construct 2-aryldihydrofuroquinolines from aldehyde and unprotected 4-(2-aminophenyl)but-3-yn-1-ol via tandem 5-endo-dig and 6-endo-trig cyclization.
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Affiliation(s)
- Swastik Karmakar
- Department of Chemistry, Basirhat College, A/w West Bengal State University, Basirhat-743412, West Bengal, India
| | - Prasanta Das
- Department of Chemistry, Basirhat College, A/w West Bengal State University, Basirhat-743412, West Bengal, India
| | - Sandip Kundu
- CIF Division, Indian Institute of Chemical Biology (IICB), Jadavpur-700032, West Bengal, India
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22
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Zhao F, Guo S, Zhang Y, Sun T, Yang B, Ye Y, Sun K. Silver-catalyzed decarboxylative radical relay difluoroalkylation–carbocyclization: convenient access to CF 2-containing quinolinones. Org Chem Front 2021. [DOI: 10.1039/d1qo01425k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical Ag-catalyzed formal decarboxylation and radical difluoroalkylation–carbocyclization–hydrolysis route is established to construct a series of structurally diverse CF2-containing N-heterocycles.
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Affiliation(s)
- Feng Zhao
- School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Sa Guo
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Yan Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Ting Sun
- School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Bing Yang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Yong Ye
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
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23
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Yu B, Perfetto A, Allievi L, Dhambri S, Rager MN, Selkti M, Ciofini I, Lannou MI, Sorin G. Silver(I) Oxide-/DBU-Promoted Synthesis of Dihydrofuran Units through Allenyl Silver Formation. Chemistry 2020; 26:17455-17461. [PMID: 32978998 DOI: 10.1002/chem.202002696] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/17/2020] [Indexed: 11/08/2022]
Abstract
A formal [3+2] cyclization mediated by silver(I) oxide and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) is described herein. Through a broad variety of carbonyl compounds, this system can promote cyclization reactions with high yield (up to 85 %) and diastereoselectivity (up to 95:5) for a straightforward access to complex and congested dihydrofuran derivatives in one step under mild conditions. Based on DFT studies, the proposed mechanism would involve an allenyl silver intermediate.
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Affiliation(s)
- Bao Yu
- Faculté des Sciences Pharmaceutiques et Biologiques, Unité CNRS UMR 8038 CiTCoM, Université de Paris Descartes, 4 avenue de l'Observatoire, 75270, Paris Cedex 06, France
| | - Anna Perfetto
- Chimie ParisTech, PSL University, Unité CNRS FRE 2027, Institute of Chemistry for Life and Health Science (i-CLeHS), 11, rue Pierre et Marie Curie, 75005, Paris, France
| | - Luca Allievi
- Faculté des Sciences Pharmaceutiques et Biologiques, Unité CNRS UMR 8038 CiTCoM, Université de Paris Descartes, 4 avenue de l'Observatoire, 75270, Paris Cedex 06, France
| | - Sabrina Dhambri
- Faculté des Sciences Pharmaceutiques et Biologiques, Unité CNRS UMR 8038 CiTCoM, Université de Paris Descartes, 4 avenue de l'Observatoire, 75270, Paris Cedex 06, France
| | - Marie-Noelle Rager
- Chimie ParisTech, PSL University, Unité CNRS FRE 2027, Institute of Chemistry for Life and Health Science (i-CLeHS), 11, rue Pierre et Marie Curie, 75005, Paris, France
| | - Mohamed Selkti
- Faculté des Sciences Pharmaceutiques et Biologiques, Unité CNRS UMR 8038 CiTCoM, Université de Paris Descartes, 4 avenue de l'Observatoire, 75270, Paris Cedex 06, France
| | - Ilaria Ciofini
- Chimie ParisTech, PSL University, Unité CNRS FRE 2027, Institute of Chemistry for Life and Health Science (i-CLeHS), 11, rue Pierre et Marie Curie, 75005, Paris, France
| | - Marie-Isabelle Lannou
- Faculté des Sciences Pharmaceutiques et Biologiques, Unité CNRS UMR 8038 CiTCoM, Université de Paris Descartes, 4 avenue de l'Observatoire, 75270, Paris Cedex 06, France
| | - Geoffroy Sorin
- Faculté des Sciences Pharmaceutiques et Biologiques, Unité CNRS UMR 8038 CiTCoM, Université de Paris Descartes, 4 avenue de l'Observatoire, 75270, Paris Cedex 06, France
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24
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Vayer M, Bour C, Gandon V. Exploring the Versatility of 7‐Alkynylcycloheptatriene Scaffolds Under π‐Acid Catalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Marie Vayer
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris‐Saclay Bâtiment 420 91405 Orsay cedex France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris‐Saclay Bâtiment 420 91405 Orsay cedex France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris‐Saclay Bâtiment 420 91405 Orsay cedex France
- Laboratoire de Chimie Moléculaire (LCM) CNRS UMR 9168, Ecole Polytechnique Institut Polytechnique de Paris route de Saclay 91128 Palaiseau cedex France
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25
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Chen Z, Bai X, Sun J, Xu Y. Fe(III)-Catalyzed Decarboxylative C3-Difluoroarylmethylation of Coumarins with α,α-Difluoroarylacetic Acids. J Org Chem 2020; 85:7674-7682. [PMID: 32436381 DOI: 10.1021/acs.joc.0c00113] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A facile Fe(III)-catalyzed oxidative decarboxylative radical coupling reaction of α,α-difluoroarylacetic acids with coumarins has been developed. This transformation, which provides a series of C-3 difluoroarylmethylated coumarins containing various functional groups in moderate-to-good yields, features easily accessible starting materials and operational simplicity.
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Affiliation(s)
- Zhiwei Chen
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou310014, P. R. China
| | - Xiang Bai
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou310014, P. R. China
| | - Jie Sun
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou310014, P. R. China
| | - Yicheng Xu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou310014, P. R. China
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26
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Gao Y, Zhao L, Xiang T, Li P, Wang L. Photoinitiated decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1 H)-ones with potassium 2,2-difluoro-2-arylacetates in water. RSC Adv 2020; 10:10559-10568. [PMID: 35492892 PMCID: PMC9050393 DOI: 10.1039/d0ra02059a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/05/2020] [Indexed: 12/19/2022] Open
Abstract
An efficient and green strategy for the preparation of C3-difluoroarylmethylated quinoxalin-2(1H)-one via a visible-light-induced decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1H)-one with potassium 2,2-difluoro-2-arylacetate in water at room temperature was developed. This photoinduced reaction generated the desired products in good yields under simple and mild conditions.
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Affiliation(s)
- Yanhui Gao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Department of Chemistry, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Lulu Zhao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Department of Chemistry, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Tianyi Xiang
- College of Pharmacy, Shenyang Pharmaceutical University Shenyang 110016 P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Department of Chemistry, Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Lei Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Department of Chemistry, Huaibei Normal University Huaibei Anhui 235000 P. R. China
- Department of Chemistry, Advanced Research Institute, Taizhou University Taizhou Zhejiang 318000 P. R. China
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27
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Li X, Zhang R, Zhang X, Zhu P, Yao T. Silver-Catalyzed Decarboxylative Allylation of Difluoroarylacetic Acids with Allyl Sulfones in Water. Chem Asian J 2020; 15:1175-1179. [PMID: 32056375 DOI: 10.1002/asia.202000059] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/11/2020] [Indexed: 11/07/2022]
Abstract
A practical silver-catalyzed decarboxylative allylation of α,α-difluoroarylacetic acids with allyl sulfones is described, which provides a variety of β,β-difluorinated alkenes in good yields. Notably, the reaction proceeds smoothly in water with good functional group tolerance. The practicality and synthetic value of this process was demonstrated by scaled-up experiment and elaboration of the products via reduction or Heck reaction. Primary mechanism investigations suggest that a radical process might be involved.
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Affiliation(s)
- Xiang Li
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Ruihong Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Xiaofei Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Peiyuan Zhu
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Tuanli Yao
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
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28
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Xie X, Zhang Y, Hao J, Wan W. Ag-Catalyzed minisci C–H difluoromethylarylation of N-heteroarenes. Org Biomol Chem 2020; 18:400-404. [DOI: 10.1039/c9ob02586c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A mild silver-catalyzed decarboxylative C–H difluoromethylarylation of electron-deficient N-heteroarenes.
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Affiliation(s)
- Xiaojuan Xie
- Department of Chemistry
- Shanghai University
- Shanghai
- China
| | - Yifang Zhang
- Department of Chemistry
- Shanghai University
- Shanghai
- China
| | - Jian Hao
- Department of Chemistry
- Shanghai University
- Shanghai
- China
- Key Laboratory of Organofluorine Chemistry
| | - Wen Wan
- Department of Chemistry
- Shanghai University
- Shanghai
- China
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29
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Le Vaillant F, Waser J. Alkynylation of radicals: spotlight on the "Third Way" to transfer triple bonds. Chem Sci 2019; 10:8909-8923. [PMID: 31762975 PMCID: PMC6855197 DOI: 10.1039/c9sc03033f] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 08/12/2019] [Indexed: 12/20/2022] Open
Abstract
The alkynylation of radical intermediates has been known since a long time, but had not been broadly applied in synthetic chemistry, in contrast to the alkynylation of either electrophiles or nucleophiles. In the last decade however, it has been intensively investigated leading to new disconnections to introduce versatile triple bonds into organic compounds. Nowadays, such processes are important alternatives to classical nucleophilic and electrophilic alkynylations. Efficient alkyne transfer reagents, in particular arylsulfones and hypervalent iodine reagents were introduced. Direct alkynylation, as well as cascade reactions, were subsequently developed. If relatively harsh conditions were required in the past, a new era began with progress in photoredox and transition metal catalysis. Starting from various radical precursors, alkynylations under very mild reaction conditions were rapidly discovered. This review covers the evolution of radical alkynylation, from its emergence to its current intensive stage of development. It will focus in particular on improvements for the generation of radicals and on the extension of the scope of radical precursors and alkyne sources.
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Affiliation(s)
- Franck Le Vaillant
- Laboratory of Catalysis and Organic Synthesis , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSO , BCH 4306 , 1015 Lausanne , Switzerland .
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSO , BCH 4306 , 1015 Lausanne , Switzerland .
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30
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Yang X, Tsui GC. Silver-Catalyzed Trifluoromethylalkynylation of Unactivated Alkenes with Hypervalent Iodine Reagents. Org Lett 2019; 21:8625-8629. [DOI: 10.1021/acs.orglett.9b03230] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xinkan Yang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
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31
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Li CG, Xie Q, Xu XL, Wang F, Huang B, Liang YF, Xu HJ. Silver-Catalyzed Decarboxylative Alkylfluorination of Alkenes. Org Lett 2019; 21:8496-8500. [PMID: 31591887 DOI: 10.1021/acs.orglett.9b03381] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A decarboxylation of alkyl carboxylic acids for alkylfluorination of alkene was developed, with the catalysis of silver(I) and Selectfluor as both the oxidant and fluorine source. This reaction is highly chemoselective, producing the decarboxylative alkylfluorination products rather than the competitive fluorination of aliphatic carboxylic acids. This practical transformation proceeds efficiently in aqueous media at room temperature and exhibits a large range of functional-group tolerance in various primary and secondary aliphatic carboxylates and alkenes.
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Affiliation(s)
- Chen-Guang Li
- School of Food and Biological Engineering , Hospital of Hefei University of Technology , Hefei 230009 , P. R. China
| | - Qiang Xie
- PET-CT Center , The First Affiliated Hospital of USTC , Hefei 230001 , P. R. China
| | - Xiao-Lan Xu
- School of Medical Science , Anhui Medical University , Hefei 230026 , P. R. China
| | - Feng Wang
- School of Food and Biological Engineering , Hospital of Hefei University of Technology , Hefei 230009 , P. R. China
| | - Bei Huang
- School of Food and Biological Engineering , Hospital of Hefei University of Technology , Hefei 230009 , P. R. China
| | - Yu-Feng Liang
- Department of Chemistry , McGill University , 801 Sherbrooke Street West , Montreal , Quebec H3A 0B8 , Canada
| | - Hua-Jian Xu
- School of Food and Biological Engineering , Hospital of Hefei University of Technology , Hefei 230009 , P. R. China
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32
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Wang Y, Zhao H, Xie X, Jiang H, Deng H, Hao J, Wan W. Silver-catalyzed decarboxylative homocoupling reaction for the construction of tetrafluoroethylene-bridging aromatic compounds. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1651865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yong Wang
- Department of Chemistry, Shanghai University, Shanghai, China
| | - Huaxin Zhao
- Department of Chemistry, Shanghai University, Shanghai, China
| | - Xiaojuan Xie
- Department of Chemistry, Shanghai University, Shanghai, China
| | - Haizhen Jiang
- Department of Chemistry, Shanghai University, Shanghai, China
| | - Hongmei Deng
- Laboratory of Microstructures, Shanghai University, Shanghai, China
| | - Jian Hao
- Department of Chemistry, Shanghai University, Shanghai, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Wen Wan
- Department of Chemistry, Shanghai University, Shanghai, China
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33
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Li M, Wang JH, Li W, Lin CD, Zhang LB, Wen LR. N-Phenoxyamides as Multitasking Reagents: Base-Controlled Selective Construction of Benzofurans or Dihydrobenzofuro[2,3-d]oxazoles. J Org Chem 2019; 84:8523-8530. [DOI: 10.1021/acs.joc.9b00858] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Jia-Hui Wang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Wei Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Cheng-Dong Lin
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Lin-Bao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
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34
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Li M, Li W, Lin CD, Wang JH, Wen LR. One Base for Two Shots: Metal-Free Substituent-Controlled Synthesis of Two Kinds of Oxadiazine Derivatives from Alkynylbenziodoxolones and Amidoximes. J Org Chem 2019; 84:6904-6915. [DOI: 10.1021/acs.joc.9b00659] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Wei Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Cheng-Dong Lin
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Jia-Hui Wang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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35
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Kawanishi R, Phongphane L, Iwasa S, Shibatomi K. Decarboxylative Fluorination of 2‐Pyridylacetates. Chemistry 2019; 25:7453-7456. [DOI: 10.1002/chem.201900565] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/01/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Ryouta Kawanishi
- Department of Applied Chemistry and Life ScienceToyohashi University of Technology 1-1 Hibarigaoka, Tempaku-cho Toyohashi 441-8580 Japan
| | - Lacksany Phongphane
- Department of Applied Chemistry and Life ScienceToyohashi University of Technology 1-1 Hibarigaoka, Tempaku-cho Toyohashi 441-8580 Japan
| | - Seiji Iwasa
- Department of Applied Chemistry and Life ScienceToyohashi University of Technology 1-1 Hibarigaoka, Tempaku-cho Toyohashi 441-8580 Japan
| | - Kazutaka Shibatomi
- Department of Applied Chemistry and Life ScienceToyohashi University of Technology 1-1 Hibarigaoka, Tempaku-cho Toyohashi 441-8580 Japan
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36
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Zhou Y, Xiong Z, Qiu J, Kong L, Zhu G. Visible light photocatalytic acyldifluoroalkylation of unactivated alkenes for the direct synthesis of gem-difluorinated ketones. Org Chem Front 2019. [DOI: 10.1039/c9qo00136k] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photoredox-catalyzed alkene acyldifluoroalkylation with difluoroacetic acids for the direct synthesis of gem-difluorinated cyclic ketones is developed.
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Affiliation(s)
- Yulu Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Zhimin Xiong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Jiayan Qiu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Lichun Kong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
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37
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Hong G, Yuan J, Fu J, Pan G, Wang Z, Yang L, Xiao Y, Mao P, Zhang X. Transition-metal-free decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1H)-ones with α,α-difluoroarylacetic acids. Org Chem Front 2019. [DOI: 10.1039/c9qo00105k] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A facile and efficient transition-metal-free decarboxylative radical coupling reaction of α,α-difluoroarylacetic acids with quinoxalin-2(1H)-ones has been developed under mild conditions.
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Affiliation(s)
- Guangfeng Hong
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
- Zhengzhou Tobacco Research Institute of CNTC
| | - Jinwei Yuan
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Junhao Fu
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Guoyong Pan
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Zhengwang Wang
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Liangru Yang
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Yongmei Xiao
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Pu Mao
- School of Chemistry & Chemical Engineering
- Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Xiangmin Zhang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
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38
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Banerjee S, Senthilkumar B, Patil NT. Gold-Catalyzed 1,2-Oxyalkynylation of N-Allenamides with Ethylnylbenziodoxolones. Org Lett 2018; 21:180-184. [DOI: 10.1021/acs.orglett.8b03651] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Somsuvra Banerjee
- Division of Organic Chemistry, CSIR—National Chemical Laboratory, Dr. Homi Bhabha Road, Pune − 411 008, India
- Academy of Scientific and Innovative Research, Ghaziabad − 201 002, India
| | - Beeran Senthilkumar
- Division of Organic Chemistry, CSIR—National Chemical Laboratory, Dr. Homi Bhabha Road, Pune − 411 008, India
- Academy of Scientific and Innovative Research, Ghaziabad − 201 002, India
| | - Nitin T. Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal − 462 066, India
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39
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Li M, Wang JH, Li W, Wen LR. Metal-Free Direct Construction of 2-(Oxazol-5-yl)phenols from N-Phenoxyamides and Alkynylbenziodoxolones via Sequential [3,3]-Rearrangement/Cyclization. Org Lett 2018; 20:7694-7698. [DOI: 10.1021/acs.orglett.8b03427] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, China
| | - Jia-Hui Wang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, China
| | - Wei Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, China
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40
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Liu X, Liu R, Dai J, Cheng X, Li G. Application of Hantzsch Ester and Meyer Nitrile in Radical Alkynylation Reactions. Org Lett 2018; 20:6906-6909. [DOI: 10.1021/acs.orglett.8b03050] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xu Liu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ruoyu Liu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jie Dai
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Guigen Li
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
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41
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Da Y, Han S, Du X, Liu S, Liu L, Li J. Copper(I)-Catalyzed Oxydifluoroalkylation of Alkenes: A Route to Functionalization of Lactones. Org Lett 2018; 20:5149-5152. [DOI: 10.1021/acs.orglett.8b02069] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yang Da
- School of Pharmaceutical Science, Jiangnan University, Lihu Road 1800, 214122 Wuxi, P. R. China
| | - Shengnan Han
- School of Pharmaceutical Science, Jiangnan University, Lihu Road 1800, 214122 Wuxi, P. R. China
| | - Xiaoyong Du
- School of Pharmaceutical Science, Jiangnan University, Lihu Road 1800, 214122 Wuxi, P. R. China
| | - Shaodong Liu
- School of Pharmaceutical Science, Jiangnan University, Lihu Road 1800, 214122 Wuxi, P. R. China
| | - Lei Liu
- School of Pharmaceutical Science, Jiangnan University, Lihu Road 1800, 214122 Wuxi, P. R. China
| | - Jie Li
- School of Pharmaceutical Science, Jiangnan University, Lihu Road 1800, 214122 Wuxi, P. R. China
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42
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Mandal S, Bera T, Dubey G, Saha J, Laha JK. Uses of K2S2O8 in Metal-Catalyzed and Metal-Free Oxidative Transformations. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00743] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sudip Mandal
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Tishyasoumya Bera
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Gurudutt Dubey
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Jaideep Saha
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Joydev K. Laha
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
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43
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Meng M, Wang G, Yang L, Cheng K, Qi C. Silver-catalyzed Double Decarboxylative Radical Alkynylation/Annulation of Arylpropiolic Acids with α-keto Acids: Access to Ynones and Flavones under Mild Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701469] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mengting Meng
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Guofang Wang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Liangfeng Yang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Kai Cheng
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process; Shaoxing University; 312000 Shaoxing People's Republic of China
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44
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Liu J, Li W, Xie J, Zhu C. Photoredox 1,2-dicarbofunctionalization of unactivated alkenes via tandem radical difluoroalkylation and alkynyl migration. Org Chem Front 2018. [DOI: 10.1039/c7qo00808b] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Visible-light-mediated tandem radical difluoroalkylation and alkynylation of unactivated alkenes is described. It comprises a mild C–C bond activation via intramolecular 1,4-radical alkynyl migration.
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Affiliation(s)
- Jing Liu
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
| | - Weipeng Li
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
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45
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Li X, Wu G, Liu X, Zhu Z, Huo Y, Jiang H. Regioselective C–H Bond Alkynylation of Carbonyl Compounds through Ir(III) Catalysis. J Org Chem 2017; 82:13003-13011. [DOI: 10.1021/acs.joc.7b01489] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xianwei Li
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Guocai Wu
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xiaohang Liu
- BASF Advanced Chemicals Co., Ltd., No. 300, Jiangxinsha Road, 200137 Shanghai, China
| | - Zhongzhi Zhu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yanping Huo
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Huanfeng Jiang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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46
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Li YL, Wang JB, Wang XL, Cao Y, Deng J. Silver-Catalyzed Decarboxylative Radical Addition/Cyclization of α,α-Difluoroarylacetic Acids with Acrylamides To Synthesize Difluorinated Oxindoles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701248] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yin-Long Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; 401331 Chongqing China
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Ji-Bo Wang
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Xue-Lin Wang
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Yang Cao
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
| | - Jun Deng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; 401331 Chongqing China
- School of Pharmaceutical Science and Technology; Tianjin University; 300072 Tianjin China
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47
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Tung TT, Christensen SB, Nielsen J. Difluoroacetic Acid as a New Reagent for Direct C−H Difluoromethylation of Heteroaromatic Compounds. Chemistry 2017; 23:18125-18128. [DOI: 10.1002/chem.201704261] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Truong Thanh Tung
- Department of Drug Design and Pharmacology; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| | - Søren Brøgger Christensen
- Department of Drug Design and Pharmacology; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| | - John Nielsen
- Department of Drug Design and Pharmacology; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
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48
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Teodoro BVM, Silva LF. Metal-Free Synthesis of Homopropargylic Alcohols from Aldehydes. J Org Chem 2017; 82:11787-11791. [DOI: 10.1021/acs.joc.7b01629] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bruno V. M. Teodoro
- Departamento de
Química
Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - Luiz F. Silva
- Departamento de
Química
Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
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49
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Yang WC, Dai P, Luo K, Ji YG, Wu L. Aldehydes as Carbon Radical Acceptors: Silver Nitrate Catalyzed Cascade Decarboxylation and Oxidative Cyclization toward Dihydroflavonoid Derivatives. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601407] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wen-Chao Yang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
- College of Plant Protection; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Peng Dai
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Kai Luo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
- College of Plant Protection; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Yi-Gang Ji
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
- College of Plant Protection; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
- Beijing National Laboratory for Molecular Sciences and Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
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50
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Xia T, He L, Liu YA, Hartwig JF, Liao X. Palladium-Catalyzed Cross-Coupling of Ethyl Bromodifluoroacetate with Aryl Bromides or Triflates and Cross-Coupling of Ethyl Bromofluoroacetate with Aryl Iodides. Org Lett 2017; 19:2610-2613. [PMID: 28467714 DOI: 10.1021/acs.orglett.7b00938] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed Negishi cross-coupling reaction of ethyl bromodifluoroacetate with aryl bromides or aryl triflates to construct C(sp2)-CF2 bonds is described. The reaction was conducted under mild reaction conditions, and no preparation of organozinc reagents is required. This is the first report encompassing the conversion of aryl triflates into products containing C-CF2 bonds. In addition, the construction of C(sp2)-CHF bonds was achieved under mild conditions via a cross-coupling of aryl iodides with ethyl bromofluoroacetate.
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Affiliation(s)
- Tingting Xia
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University , Beijing 100084, China
| | - Lei He
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University , Beijing 100084, China
| | - Yahu A Liu
- Medicinal Chemistry, Genomics Institute of the Novartis Research Foundation , San Diego, California 92121, United States
| | - John F Hartwig
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - Xuebin Liao
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Tsinghua University , Beijing 100084, China
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