1
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Abdukader A, Abdukerem D, Liu C. Photoredox aerobic oxidative cycliation of N-arylacrylamides with benzylalcohols. Org Biomol Chem 2022; 20:9282-9286. [PMID: 36383155 DOI: 10.1039/d2ob01865a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
While the radical coupling/cyclization of N-arylacrylamides has been well established for the synthesis of functionalized oxindoles, in the present work, a visible-light-induced aerobic oxidative coupling/cyclization reaction of N-arylacrylamides with benzylalcohols has been developed. The combination of LiBr and benzophenone as the additive was found to be highly effective to enhance the catalytic efficacy. This protocol offers a mild alternative access to structurally valuable hydroxyalkyl oxindoles. Mechanistic studies reveal that the bromo radical in situ formed through the photoredox SET process under aerobic conditions enables efficient HAT to generate the key hydroxyalkyl radical intermediate.
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Affiliation(s)
- Ablimit Abdukader
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, P R China.
| | - Dilshat Abdukerem
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, P R China.
| | - Changhong Liu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, P R China.
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2
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Xu D, Yu Y, Huang F, Zhou S, Zhang W. Photo‐induced sp3 C–H functionalization for the synthesis of 3,3‐disubstituted oxindoles. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200131] [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)
- Dongping Xu
- Anhui Normal University College of Chemistry and Materials Science CHINA
| | - Yingliang Yu
- Anhui Normal University College of Chemistry and Materials Science CHINA
| | - Fei Huang
- Anhui Normal University College of Chemistry and Materials Science CHINA
| | - Shuangliu Zhou
- Anhui Normal University College of Chemistry and Materials Science CHINA
| | - Wu Zhang
- Anhui Normal University College of Chemistry and Materials Science 1 Beijing Eastroad 241000 Wuhu CHINA
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3
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Yang Z, Shan Y, Yu J, Pan C. Metal‐Free Hydroxyalkylative Radical Addition/Cyclization of Unactivated Alkenes for the Synthesis of Hydroxyalkylated Ring‐Fused Quinazolinones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zixian Yang
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University 213164 Changzhou P. R. China
| | - Yujia Shan
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University 213164 Changzhou P. R. China
| | - Jin‐Tao Yu
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University 213164 Changzhou P. R. China
| | - Changduo Pan
- School of Chemical and Environmental Engineering Jiangsu University of Technology 213001 Changzhou P. R. China
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4
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Lu Y, Fang CZ, Liu Q, Li BL, Wang ZX, Chen XY. Donor-Acceptor Complex Enables Cascade Radical Cyclization of N-Arylacrylamides with Katritzky Salts. Org Lett 2021; 23:5425-5429. [PMID: 34190559 DOI: 10.1021/acs.orglett.1c01758] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cascade radical cyclization of N-arylacrylamides is an attractive method to prepare 3,3-disubstituted oxindoles. As the reported methods often require additives and/or photocatalysts, we herein report an additive- and photocatalyst-free deaminative strategy for their synthesis under mild conditions, enabled by photoactivation of an electron donor-acceptor (EDA) complex. DFT studies indicated that the involvement of an explicit xylene solvent molecule can greatly enhance the photoactivity of the EDA complex between N-arylacrylamides and Katritzky salts.
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Affiliation(s)
- Yu Lu
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chang-Zhen Fang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiang Liu
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bao-Lin Li
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Xiang Wang
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiang-Yu Chen
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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5
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6
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Ding S, Ren H, Zhu M, Ma Q, Miao Z, Li P. Silver(I)-mediated oxidation/cyclization of acrylamides with alkyl trifluoroborates. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1846057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Siyi Ding
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi’an, China
| | - Huaping Ren
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi’an, China
| | - Min Zhu
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi’an, China
| | - Qiang Ma
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi’an, China
| | - Zongcheng Miao
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, School of Science, Xijing University, Xi’an, China
| | - Pengfei Li
- Bioactive Small Molecules Research Group, Center for Organic Chemistry, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, China
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7
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Chen Z, Zhou Q, Chen QN, Chen P, Xiong BQ, Liang Y, Tang KW, Xie J, Liu Y. Copper-promoted cyanoalkylation/ring-expansion of vinylcyclopropanes with α-C-H bonds in alkylnitriles toward 3,4-dihydronaphthalenes. Org Biomol Chem 2020; 18:8677-8685. [PMID: 33078807 DOI: 10.1039/d0ob01864c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A copper-promoted oxidative cyanomethylation/ring-expansion of vinylcyclopropanes with α-C(sp3)-H bonds in alkyl nitriles is established for the generation of 1-cyanoethylated 3,4-dihydronaphthalenes. This cyanomethylation/ring-expansion involves a radical pathway and proceeds via cyanomethyl radical formation, radical addition and ring-expansion. This ring-expansion strategy offers a highly atom-economical route for the construction of nitrile-containing 3,4-dihydronaphthalenes, which can be transformed into other useful products under simple conditions.
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Affiliation(s)
- Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Quan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Qing-Nan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yun Liang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Jun Xie
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China. and Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
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8
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Meng X, Cao T, Song S, Zhou G, Li Q, Wei W. Metal‐Free Hydroxyalkylation‐Initiated Radical Cyclization of 1,6‐Enynes with Alcohols. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900425] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiao‐Xiao Meng
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Ting‐Ting Cao
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Si‐Zhe Song
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Guodong Zhou
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Qiang Li
- Institution of Functional Organic Molecules and Materials School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 P. R. China
| | - Wen‐Ting Wei
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
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9
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Yoshinaga K, Tsubaki N, Murata Y, Noda Y, Nishikata T. Ppm Cu Catalyst Enables tert-Alkylation Followed by C-H Cyclization To Synthesize Substituted Oxindoles. ACS OMEGA 2018; 3:9020-9026. [PMID: 31459034 PMCID: PMC6645334 DOI: 10.1021/acsomega.8b01397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 08/01/2018] [Indexed: 06/10/2023]
Abstract
In this paper, we established highly efficient Cu-catalyzed tandem tert-alkylation C-H cyclization of α-bromocarbonyls and methacrylamides to produce substituted oxindoles. The maximum turnover number was up to 48 000 with reasonable yield. Although the catalyst loadings were very low, the reaction was not involving radical chain reaction. The resulting oxindoles were able to transform into aza-multicyclic compound via a reduction.
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10
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Fu J, Yuan J, Zhang Y, Xiao Y, Mao P, Diao X, Qu L. Copper-catalyzed oxidative coupling of quinoxalin-2(1H)-ones with alcohols: access to hydroxyalkylation of quinoxalin-2(1H)-ones. Org Chem Front 2018. [DOI: 10.1039/c8qo00979a] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
An efficient protocol for the synthesis of hydroxyl-containing quinoxalin-2(1H)-ones has been developed via the copper-catalyzed cross-coupling reaction of quinoxalin-2(1H)-ones with alcohols with moderate to good yields.
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Affiliation(s)
- 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
| | - 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
| | - Yue Zhang
- 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
| | - Xiaoqiong Diao
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
| | - Lingbo Qu
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Academician Workstation for Natural Medicinal Chemistry of Henan Province
- Zhengzhou 450001
- P. R. China
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11
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Jafarpour F, Abbasnia M. A Regioselective Metal-Free Construction of 3-Aroyl Coumarins by Csp2-H Functionalization. J Org Chem 2016; 81:11982-11986. [DOI: 10.1021/acs.joc.6b02051] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Farnaz Jafarpour
- School
of Chemistry, College
of Science, University of Tehran, Tehran 1417466191, Iran
| | - Masoumeh Abbasnia
- School
of Chemistry, College
of Science, University of Tehran, Tehran 1417466191, Iran
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12
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Li Y, Liu D, Liu C, Lei A. Oxidative β-Csp3−H Functionalization oftBuOH: A Selective Radical/Radical Cross-Coupling Access to β-Hydroxy Thioethers. Chem Asian J 2016; 11:2246-9. [DOI: 10.1002/asia.201600800] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Yuxiu Li
- College of Chemistry and Molecular Sciences; the Institute for Advanced Studies (IAS); Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Dong Liu
- College of Chemistry and Molecular Sciences; the Institute for Advanced Studies (IAS); Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Chao Liu
- College of Chemistry and Molecular Sciences; the Institute for Advanced Studies (IAS); Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences; the Institute for Advanced Studies (IAS); Wuhan University; Wuhan Hubei 430072 P. R. China
- National Research Center for Carbohydrate Synthesis; Jiangxi Normal University; Nanchang 330022 Jiangxi P. R. China
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13
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Zhao Y, Sharma N, Sharma UK, Li Z, Song G, Van der Eycken EV. Microwave-Assisted Copper-Catalyzed Oxidative Cyclization of Acrylamides with Non-Activated Ketones. Chemistry 2016; 22:5878-82. [DOI: 10.1002/chem.201504776] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Yaping Zhao
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
- Shanghai Key Laboratory of Chemical Biology; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Nandini Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
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14
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Lim JW, Kim KH, Moon HR, Kim JN. Transition metal and base-free synthesis of 3,3-diaryl-2-oxindoles from 2,2,N-triarylacetamides. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Li CC, Yang SD. Various difunctionalizations of acrylamide: an efficient approach to synthesize oxindoles. Org Biomol Chem 2016; 14:4365-77. [DOI: 10.1039/c6ob00554c] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this review, we summarize the advancement and applications in the difunctionalization of acrylamide to synthesize oxindoles based on the mechanism.
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Affiliation(s)
- Chen-Chen Li
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
- Cuiying Honors College
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
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16
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Zhao Y, Li Z, Sharma UK, Sharma N, Song G, Van der Eycken EV. Copper-catalyzed alkylarylation of activated alkenes using isocyanides as the alkyl source: an efficient radical access to 3,3-dialkylated oxindoles. Chem Commun (Camb) 2016; 52:6395-8. [DOI: 10.1039/c6cc02024k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel copper-catalyzed oxidative cyclization of N-arylacrylamides for the synthesis of 3,3-dialkylated oxindoles is described using isocyanides as alkyl radical precursors.
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Affiliation(s)
- Yaping Zhao
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Nandini Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
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17
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Mai WP, Wang JT, Xiao YM, Mao P, Lu K. A novel direct synthesis of 3-acyl-4-aryldihydroquinolin-2(1H)-ones via metal-free radical tandem cyclization between N-arylcinnamamides and aldehydes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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18
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Li CC, Yang SD. Oxidant-Free Rhodium(I)-Catalyzed Difunctionalization of Acrylamide: An Efficient Approach To Synthesize Oxindoles. Org Lett 2015; 17:2142-5. [DOI: 10.1021/acs.orglett.5b00732] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chen-Chen Li
- State
Key Laboratory of Applied Organic Chemistry and ‡Cuiying Honors College, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shang-Dong Yang
- State
Key Laboratory of Applied Organic Chemistry and ‡Cuiying Honors College, Lanzhou University, Lanzhou 730000, P. R. China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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19
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Synthesis of benzo-fused spiropiperidines through a regioselective free radical-mediated cyclization as key step: a suitable alternative towards the lead σ-1 receptor ligand L-687384. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-014-1407-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Li Y, Liu B, Li HB, Wang Q, Li JH. Oxidative radical 1,2-alkylarylation of alkenes with α-C(sp3)–H bonds of acetonitriles involving 1,2-aryl migration. Chem Commun (Camb) 2015; 51:1024-6. [DOI: 10.1039/c4cc08902b] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The first access to acyclic molecules by metal-free oxidative 1,2-alkylarylation of alkenes with acetonitriles is presented.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Bang Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Hai-Bing Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Qiuan Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
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21
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Zhang M, Sheng W, Ji P, Liu Y, Guo C. Metal-free direct cyanoisopropylation/arylation of N-arylacrylamides or N-alkyl-N-(arylsulfonyl)acrylamides with AIBN: a simple and mild approach to cyano-containing oxindoles. RSC Adv 2015. [DOI: 10.1039/c5ra10084d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A general, highly efficient approach to cyano-containing oxindoles is presented that is achieved by a metal-free direct cyanoisopropylation/arylation ofN-arylacrylamides orN-alkyl-N-(arylsulfonyl)acrylamides with AIBN.
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Affiliation(s)
- Mingzhong Zhang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Wenbing Sheng
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Hunan University of Chinese Medicine
| | - Pengyi Ji
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Yufeng Liu
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Cancheng Guo
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
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22
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Yu W, Hu P, Fan Y, Yu C, Yan X, Li X, Xu X. Metal-free TBAI-catalyzed arylsulfonylation of activated alkenes with sulfonylhydrazides. Org Biomol Chem 2015; 13:3308-13. [DOI: 10.1039/c4ob01651c] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An efficient approach to isoquinoline-1,3(2H,4H)-dione derivatives through metal-free oxidative arylsulfonylation of α,β-unsaturated imides with sulfonylhydrazides is developed.
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Affiliation(s)
- Wubin Yu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Peizhu Hu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Yuanyuan Fan
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Congyao Yu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Xinhuan Yan
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Xiaoqing Li
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
| | - Xiangsheng Xu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- PR China
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23
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Tang Q, Liu X, Liu S, Xie H, Liu W, Zeng J, Cheng P. N-(Acyloxy)phthalimides as tertiary alkyl radical precursors in the visible light photocatalyzed tandem radical cyclization of N-arylacrylamides to 3,3-dialkyl substituted oxindoles. RSC Adv 2015. [DOI: 10.1039/c5ra17292f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A visible light promoted tandem radical cyclization of N-arylacrylamides 1 with N-(acyloxy)phthalimides 2 to 3,3-dialkyl substituted oxindoles 3 was developed. Compounds 2 can be used as the precursors of tertiary alkyl radical.
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Affiliation(s)
- Qi Tang
- Hunan Co-Innovation Center for Utilization of Botanicals Functional Ingredients
- Hunan Agricultural University
- Changsha
- China
| | - Xiubin Liu
- Hunan Co-Innovation Center for Utilization of Botanicals Functional Ingredients
- Hunan Agricultural University
- Changsha
- China
| | - Sheng Liu
- Hunan Co-Innovation Center for Utilization of Botanicals Functional Ingredients
- Hunan Agricultural University
- Changsha
- China
| | - Hongqi Xie
- Hunan Co-Innovation Center for Utilization of Botanicals Functional Ingredients
- Hunan Agricultural University
- Changsha
- China
| | - Wei Liu
- Hunan Co-Innovation Center for Utilization of Botanicals Functional Ingredients
- Hunan Agricultural University
- Changsha
- China
| | - Jianguo Zeng
- Hunan Co-Innovation Center for Utilization of Botanicals Functional Ingredients
- Hunan Agricultural University
- Changsha
- China
| | - Pi Cheng
- Hunan Co-Innovation Center for Utilization of Botanicals Functional Ingredients
- Hunan Agricultural University
- Changsha
- China
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24
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Cheng JK, Loh TP. Copper- and Cobalt-Catalyzed Direct Coupling of sp3 α-Carbon of Alcohols with Alkenes and Hydroperoxides. J Am Chem Soc 2014; 137:42-5. [DOI: 10.1021/ja510635k] [Citation(s) in RCA: 148] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jun-Kee Cheng
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Teck-Peng Loh
- Department
of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
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25
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Roopan SM, Palaniraja J. Synthetic journey towards transition metal-free arylations. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1880-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Zhou ZZ, Jin DP, Li LH, He YT, Zhou PX, Yan XB, Liu XY, Liang YM. Silver-Promoted Oxidative Cyclization of 1,6-Enynes: Highly Regioselective Synthesis of Phosphorated Fluorene Derivatives. Org Lett 2014; 16:5616-9. [DOI: 10.1021/ol502397f] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhao-Zhao Zhou
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Dong-Po Jin
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Lian-Hua Li
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yu-Tao He
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ping-Xin Zhou
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xiao-Biao Yan
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Yuan Liu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
- State
Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical
Physics, Chinese Academy of Science, Lanzhou 730000, P.R. China
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27
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Hurst TE, Gorman RM, Drouhin P, Perry A, Taylor RJK. A Direct CH/ArH Coupling Approach to Oxindoles, Thio‐oxindoles, 3,4‐Dihydro‐1
H
‐quinolin‐2‐ones, and 1,2,3,4‐Tetrahydroquinolines. Chemistry 2014; 20:14063-73. [DOI: 10.1002/chem.201403917] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Indexed: 12/27/2022]
Affiliation(s)
- Timothy E. Hurst
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Ryan M. Gorman
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Pauline Drouhin
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Alexis Perry
- Physics and Medical Imaging, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Physics Building, Stocker Road, Exeter, EX4 4QL (UK)
| | - Richard J. K. Taylor
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
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28
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Ouyang XH, Song RJ, Li JH. Iron-Catalyzed Oxidative 1,2-Carboacylation of Activated Alkenes with Alcohols: A Tandem Route to 3-(2-Oxoethyl)indolin-2-ones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400043] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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29
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Yin F, Wang XS. Silver-Mediated Radical Aryltrifluoromethylthiolaton of Activated Alkenes. Org Lett 2014; 16:1128-31. [DOI: 10.1021/ol403739w] [Citation(s) in RCA: 173] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Feng Yin
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Xi-Sheng Wang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
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30
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Qiu J, Zhang R. Transition-metal-free oxidative carboazidation of acrylamides via cascade C–N and C–C bond-forming reactions. Org Biomol Chem 2014; 12:4329-34. [DOI: 10.1039/c4ob00720d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A novel transition-metal-free oxidative carboazidation of acrylamides using inexpensive NaN3 and K2S2O8 was achieved, which not only provided an efficient method to prepare various N3-substituted oxindoles, but also represented a novel strategy for C–N and C–C bond formation via a free-radical cascade process.
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Affiliation(s)
- Jun Qiu
- Department of Chemistry
- Tongji University
- Shanghai 200092, P. R. China
- Key Laboratory of Yangtze River Water Environment
- Ministry of Education
| | - Ronghua Zhang
- Department of Chemistry
- Tongji University
- Shanghai 200092, P. R. China
- Key Laboratory of Yangtze River Water Environment
- Ministry of Education
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31
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Wang JY, Zhang X, Bao Y, Xu YM, Cheng XF, Wang XS. Iron-catalyzed radical aryldifluoromethylation of activated alkenes to difluoromethylated oxindoles. Org Biomol Chem 2014; 12:5582-5. [DOI: 10.1039/c4ob00758a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An iron-catalyzed aryldifluoromethylation of activated alkenes has been developed, which is a rare example where a cosolvent is used to improve the yield along with Fenton's reagent.
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Affiliation(s)
- Jian-Yong Wang
- Department of Chemistry
- University of Science and Technology of China
- Hefei, China
| | - Xin Zhang
- Department of Chemistry
- University of Science and Technology of China
- Hefei, China
| | - Yan Bao
- Department of Chemistry
- University of Science and Technology of China
- Hefei, China
| | - Yue-Ming Xu
- Department of Chemistry
- University of Science and Technology of China
- Hefei, China
| | - Xiu-Fen Cheng
- Department of Chemistry
- University of Science and Technology of China
- Hefei, China
| | - Xi-Sheng Wang
- Department of Chemistry
- University of Science and Technology of China
- Hefei, China
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32
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Liu Y, Zhang JL, Song RJ, Li JH. 1,2-Alkylarylation of activated alkenes with dual C–H bonds of arenes and alkyl halides toward polyhalo-substituted oxindoles. Org Chem Front 2014. [DOI: 10.1039/c4qo00251b] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkylarylation of N-arylacrylamides with alkyl halides through selective scission of the C(sp3)–H bond adjacent to halide atoms is presented.
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Affiliation(s)
- Yu Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Jia-Ling Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082, China
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33
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Tian Y, Liu ZQ. Metal-free radical cascade dichloromethylation of activated alkenes using CH2Cl2: highly selective activation of the C–H bond. RSC Adv 2014. [DOI: 10.1039/c4ra12032a] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A dicumyl peroxide-initiated highly selective activation of the (sp3)C–H bond in dichloromethane (DCM, CH2Cl2) has been achieved, which allows efficient access to dichloronated oxindoles via a free-radical cascade process.
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Affiliation(s)
- Yunfei Tian
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou, P. R. China
| | - Zhong-Quan Liu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou, P. R. China
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34
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Xu X, Tang Y, Li X, Hong G, Fang M, Du X. Iron-Catalyzed Arylalkoxycarbonylation of N-Aryl Acrylamides with Carbazates. J Org Chem 2013; 79:446-51. [DOI: 10.1021/jo402529r] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiangsheng Xu
- College of Chemical Engineering
and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yucai Tang
- College of Chemical Engineering
and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaoqing Li
- College of Chemical Engineering
and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Guo Hong
- College of Chemical Engineering
and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Mingwu Fang
- College of Chemical Engineering
and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaohua Du
- College of Chemical Engineering
and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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