51
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Abstract
Heterocyclic molecules incorporating fluorinated isoquinoline components are found in many medicinally and agriculturally important bioactive products as well as industrially impactful materials. Within the past decade, a variety of isoquinolinic ring assembly techniques has enabled the introduction of diverse fluorine-containing functionalities which can enhance potential bioactivity and industrial utility. This review examines recent noncatalyzed and transition metal catalyzed synthetic approaches to the assembly of isoquinoline derivatives that are ring-fluorinated and/or result in the incorporation of fluorine-containing functional groups. Specifically, efficient synthetic methods and regioselectivity in the incorporation of functional groups into isoquinoline ring systems are examined.
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52
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Gu L, Jin C, Wang W, He Y, Yang G, Li G. Transition-metal-free, visible-light induced cyclization of arylsulfonyl chlorides with o-azidoarylalkynes: a regiospecific route to unsymmetrical 2,3-disubstituted indoles. Chem Commun (Camb) 2017; 53:4203-4206. [DOI: 10.1039/c6cc10305g] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A visible-light-catalyzed synthesis of unsymmetrical 2,3-diaryl-substituted indoles from arylsulfonyl chlorides and o-azidoarylalkynes at room temperature has been discovered.
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Affiliation(s)
- Lijun Gu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources
- State Ethnic Affairs Commission & Ministry of Education
- Yunnan Minzu University
- Kunming
- China
| | - Cheng Jin
- New United Group Company Limited
- Changzhou
- China
| | - Wei Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources
- State Ethnic Affairs Commission & Ministry of Education
- Yunnan Minzu University
- Kunming
- China
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources
- State Ethnic Affairs Commission & Ministry of Education
- Yunnan Minzu University
- Kunming
- China
| | - Guangyu Yang
- Key Laboratory of Tobacco Chemistry of Yunnan Province
- Yunnan Academy of Tobacco Science
- Kunming
- China
| | - Ganpeng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources
- State Ethnic Affairs Commission & Ministry of Education
- Yunnan Minzu University
- Kunming
- China
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53
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Zhang L, Wang Y, Zheng L, Guo B, Hua R. Synthesis of fused polycyclic indoles via Cu(II)-catalyzed intramolecular cyclization of N-(2-cyanophenyl)indoles in the presence of diaryliodonium salts. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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54
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Guo WS, Wang YC, Dou Q, Wen LR, Li M. A copper-catalyzed arylation/nucleophilic addition/fragmentation/C–S bond formation cascade: synthesis of bis(arylthio)imines. Org Chem Front 2017. [DOI: 10.1039/c6qo00739b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new arylation/nucleophilic addition/fragmentation/C–S bond formation cascade was developed using isothiocyanates and diaryliodonium salts.
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Affiliation(s)
- Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Yuan-Chao Wang
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Qian Dou
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
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55
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Zhang R, Shi X, Yan Q, Li Z, Wang Z, Yu H, Wang X, Qi J, Jiang M. Free-radical initiated cascade methylation or trideuteromethylation of isocyanides with dimethyl sulfoxides. RSC Adv 2017. [DOI: 10.1039/c7ra08484f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The methylation or trideuteromethylation reaction of isocyanides with dimethyl sulfoxides in a radical way is developed, which offers a low-cost, easy-operation cascade methylation strategy for the synthesis of phenanthridines or isoquinolines.
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Affiliation(s)
- Rui Zhang
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Xiaoqian Shi
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Qinqin Yan
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Zejiang Li
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
| | - Zheng Wang
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Haifei Yu
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Xiaoke Wang
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Jing Qi
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
| | - Menglu Jiang
- College of Chemistry & Environmental Science
- Hebei University
- Baoding
- P. R. China
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56
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Xue D, Chen H, Xu Y, Yu H, Yu L, Li W, Xie Q, Shao L. Microwave-assisted synthesis of hydroxyl-containing isoquinolines by metal-free radical cyclization of vinyl isocyanides with alcohols. Org Biomol Chem 2017; 15:10044-10052. [DOI: 10.1039/c7ob02221b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A convenient microwave-assisted protocol for the synthesis of hydroxyl-containing isoquinolines from a metal-free radical cyclization reaction of vinyl isonitriles with alcohols was developed with moderate-to-excellent yields.
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Affiliation(s)
- Dengqi Xue
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Hao Chen
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Yulong Xu
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Haihua Yu
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Linqian Yu
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Wei Li
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Qiong Xie
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Liming Shao
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
- State Key Laboratory of Medical Neurobiology
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57
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Abstract
This review demonstrates the metal-catalyzed incorporation of isocyanides into C–H functionalization to establish complicated reactions utilizing synergistic effects.
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Affiliation(s)
- Bingrui Song
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
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58
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Zhou Q, Zhang Z, Zhou Y, Li S, Zhang Y, Wang J. Palladium-Catalyzed Synthesis of Indoles and Isoquinolines with in Situ Generated Phosphinimine. J Org Chem 2016; 82:48-56. [DOI: 10.1021/acs.joc.6b01864] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Qi Zhou
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Zhikun Zhang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Yujing Zhou
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Shichao Li
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Yan Zhang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
- The
State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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59
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Wei TQ, Xu P, Wang SY, Ji SJ. I2/CHP-Mediated Oxidative Coupling of 2-Aminobenzamides and Isocyanides: Access to 2-Aminoquinazolinones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600876] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tian-Qi Wei
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering, and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; 215123 Suzhou People's Republic of China
| | - Pei Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering, and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; 215123 Suzhou People's Republic of China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering, and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; 215123 Suzhou People's Republic of China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry, Chemical Engineering, and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; 215123 Suzhou People's Republic of China
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60
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Li CX, Tu DS, Yao R, Yan H, Lu CS. Visible-Light-Induced Cascade Reaction of Isocyanides and N-Arylacrylamides with Diphenylphosphine Oxide via Radical C-P and C-C Bond Formation. Org Lett 2016; 18:4928-4931. [PMID: 27681056 DOI: 10.1021/acs.orglett.6b02413] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An effective photoredox-mediated tandem phosphorylation/cyclization reaction of diphenylphosphine oxide with three types of radical acceptors leads to P(O)Ph2-containing phenanthridines, isoquinolines, and indolin-2-ones by formation of both C-P and C-C bonds. [Ir(ppy)2(dtbpy)]PF6 (1 mol %) was used as the catalyst, CsF or Cs2CO3 as the base, and K2S2O8 as the oxidant. A series of functional groups can be tolerated at room temperature. Moderate to good yields were generated.
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Affiliation(s)
- Chun-Xiao Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China
| | - De-Shuang Tu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China
| | - Rui Yao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China
| | - Chang-Sheng Lu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China
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61
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Sun X, Wang W, Li Y, Ma J, Yu S. Halogen-Bond-Promoted Double Radical Isocyanide Insertion under Visible-Light Irradiation: Synthesis of 2-Fluoroalkylated Quinoxalines. Org Lett 2016; 18:4638-41. [DOI: 10.1021/acs.orglett.6b02271] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaoyang Sun
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wenmin Wang
- Institute
of Theoretical and Computational Chemistry, School of Chemistry and
Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yanle Li
- Institute
of Theoretical and Computational Chemistry, School of Chemistry and
Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing Ma
- Institute
of Theoretical and Computational Chemistry, School of Chemistry and
Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shouyun Yu
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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62
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Liu Z, Zhang X, Li J, Li F, Li C, Jia X, Li J. Exploiting the Reactivity of Isocyanide: Coupling Reaction between Isocyanide and Toluene Derivatives Using the Isocyano Group as an N1 Synthon. Org Lett 2016; 18:4052-5. [DOI: 10.1021/acs.orglett.6b01928] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zhiqiang Liu
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Xinglu Zhang
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Jianxiong Li
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Feng Li
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Chunju Li
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Xueshun Jia
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
| | - Jian Li
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, P. R. China
- Shanghai
Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, P. R. China
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63
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Han YY, Jiang H, Wang R, Yu S. Synthesis of Tetracyclic Quinazolinones Using a Visible-Light-Promoted Radical Cascade Approach. J Org Chem 2016; 81:7276-81. [DOI: 10.1021/acs.joc.6b00869] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yue-Yue Han
- State Key
Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Heng Jiang
- State Key
Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ruzhi Wang
- State Key
Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shouyun Yu
- State Key
Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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64
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Ravelli D, Protti S, Fagnoni M. Carbon–Carbon Bond Forming Reactions via Photogenerated Intermediates. Chem Rev 2016; 116:9850-913. [DOI: 10.1021/acs.chemrev.5b00662] [Citation(s) in RCA: 724] [Impact Index Per Article: 90.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Davide Ravelli
- Department
of Chemistry, Photogreen Lab, University of Pavia, Viale Taramelli
12, 27100 Pavia, Italy
| | - Stefano Protti
- Department
of Chemistry, Photogreen Lab, University of Pavia, Viale Taramelli
12, 27100 Pavia, Italy
| | - Maurizio Fagnoni
- Department
of Chemistry, Photogreen Lab, University of Pavia, Viale Taramelli
12, 27100 Pavia, Italy
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65
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Gurry M, Aldabbagh F. A new era for homolytic aromatic substitution: replacing Bu3SnH with efficient light-induced chain reactions. Org Biomol Chem 2016; 14:3849-62. [PMID: 27056571 DOI: 10.1039/c6ob00370b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein is a pertinent review of recent photochemical homolytic aromatic substitution (HAS) literature. Issues with using the reductant Bu3SnH in an oxidative process where the net loss of a hydrogen atom occurs is discussed. Nowadays more efficient light-induced chain reactions are used resulting in HAS becoming a synthetic mechanism of choice rivaling organometallic, transition-metal and electrophilic aromatic substitution protocols. The review includes aromatic substitution as part of a tandem or cascade reaction, Pschorr reaction, as well as HAS facilitated by ipso-substitution, and Smiles rearrangement. Recently visible-light photoredox catalysis, which is carried out at room temperature has become one of the most important means of aromatic substitution. The main photoredox catalysts used are polypyridine complexes of Ru(ii) and Ir(iii), although eosin Y is an alternative allowing metal-free HAS. Other radical initiator-free aromatic substitutions have used 9-mesityl-10-methylacridinium ion and N,N-bis(2,6-diisopropylphenyl)perylene-3,4,9,10-bis(dicarboximide) as the photoredox catalyst, UV-light, photoinduced electron-transfer, zwitterionic semiquinone radical anions, and Barton ester intermediates.
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Affiliation(s)
- Michael Gurry
- School of Chemistry, National University of Ireland Galway, University Road, Galway, SW4 NUI, Ireland.
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66
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Fearnley AF, An J, Jackson M, Lindovska P, Denton RM. Synthesis of quaternary aryl phosphonium salts: photoredox-mediated phosphine arylation. Chem Commun (Camb) 2016; 52:4987-90. [PMID: 26898992 DOI: 10.1039/c6cc00556j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a synthesis method for the construction of quaternary aryl phoshonium salts at ambient temperature. The regiospecific reaction involves the coupling of phosphines with aryl radicals derived from diaryliodonium salts under photoredox conditions.
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Affiliation(s)
- A F Fearnley
- School of Chemistry, University of Nottingham, UK.
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67
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Tian Y, Tian L, Li C, Jia X, Li J. Temperature-Dependent Double Isocyanide Insertion Reaction To Construct a Polycyclic Skeleton. Org Lett 2016; 18:840-3. [DOI: 10.1021/acs.orglett.6b00131] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yaming Tian
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Lumin Tian
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Chunju Li
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Xueshun Jia
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, China
- State Key Laboratory
of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Jian Li
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, China
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68
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Zhang HT, Gu LJ, Huang XZ, Wang R, Jin C, Li GP. Synthesis of indol-3-yl aryl ketones through visible-light-mediated carbonylation. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.10.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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69
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Zhou L, Lokman Hossain M, Xiao T. Synthesis ofN-Containing Heterocyclic Compounds Using Visible-light Photoredox Catalysis. CHEM REC 2016; 16:319-34. [PMID: 26751828 DOI: 10.1002/tcr.201500228] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Lei Zhou
- School of Chemistry and Chemical Engineering; Sun Yat-Sen University; 135 Xingang West Road Guangzhou 510275 P. R. China
| | | | - Tiebo Xiao
- School of Chemistry and Chemical Engineering; Sun Yat-Sen University; 135 Xingang West Road Guangzhou 510275 P. R. China
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70
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Tan Q, Xu B. CH Bond Activation as a Powerful Tool in the Construction of Biologically Active Nitrogen-Containing Heterocycles. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2016. [DOI: 10.1016/b978-0-444-63749-9.00009-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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71
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Wen LR, Shen QY, Guo WS, Li M. Copper-catalyzed tandem arylation–cyclization of 2-alkynylaryl isothiocyanates with diaryliodonium salts: an efficient synthesis of thiochromeno[2,3-b]indoles. Org Chem Front 2016. [DOI: 10.1039/c6qo00133e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A Cu-catalyzed arylation–cyclization approach is developed for the synthesis of thiochromeno[2,3-b]indoles through the S-arylation, 5-endo-trig cyclization, and Friedel–Crafts-type cyclization sequence.
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Affiliation(s)
- Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Qiang-Yu Shen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao
- China
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72
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Mao H, Gao M, Liu B, Xu B. Manganese(ii)-catalyzed modular synthesis of isoquinolines from vinyl isocyanides and hydrazines. Org Chem Front 2016. [DOI: 10.1039/c6qo00048g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient manganese(ii)-catalyzed oxidative radical cascade reaction was developed from vinyl isocyanides and hydrazines leading to the modular synthesis of multi-substituted isoquinolines, phenanthridines and pyrrolo[1,2-a]quinoxalines.
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Affiliation(s)
- Hong Mao
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
| | - Mingchun Gao
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
| | - Bingxin Liu
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
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73
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Lei J, Huang J, Zhu Q. Recent progress in imidoyl radical-involved reactions. Org Biomol Chem 2016; 14:2593-602. [DOI: 10.1039/c6ob00087h] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This review discusses the recent progress in imidoyl radical-involved reactions including the synthesis of functionalized heterocycles, nitriles, imines, amines,etc.
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Affiliation(s)
- Jian Lei
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
| | - Jinbo Huang
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
| | - Qiang Zhu
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
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74
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Zhou H, Deng XZ, Zhang AH, Tan RX. Visible-light-promoted synthesis of phenanthridines via an intermolecular isocyanide insertion reaction. Org Biomol Chem 2016; 14:10407-10414. [DOI: 10.1039/c6ob02113a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An isocyanide insertion reaction promoted by the combination of an amide and a photoredox is now presented.
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Affiliation(s)
- Hui Zhou
- Institute of Functional Biomolecules
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing
- China
| | - Xin Zhao Deng
- Institute of Functional Biomolecules
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing
- China
| | - Ai Hua Zhang
- Institute of Functional Biomolecules
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing
- China
| | - Ren Xiang Tan
- Institute of Functional Biomolecules
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing
- China
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75
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Yu JT, Pan C. Radical C–H functionalization to construct heterocyclic compounds. Chem Commun (Camb) 2016; 52:2220-36. [DOI: 10.1039/c5cc08872k] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Radical C–H functionalization is a promising and dramatic approach to synthesize heterocyclic compounds with high efficiency and environmental sustainability.
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Affiliation(s)
- Jin-Tao Yu
- School of Petrochemical Engineering
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Changduo Pan
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
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76
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Pilgrim BS, Gatland AE, Esteves CHA, McTernan CT, Jones GR, Tatton MR, Procopiou PA, Donohoe TJ. Palladium-catalyzed enolate arylation as a key C-C bond-forming reaction for the synthesis of isoquinolines. Org Biomol Chem 2015; 14:1065-90. [PMID: 26632484 DOI: 10.1039/c5ob02320c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The palladium-catalyzed coupling of an enolate with an ortho-functionalized aryl halide (an α-arylation) furnishes a protected 1,5-dicarbonyl moiety that can be cyclized to an isoquinoline with a source of ammonia. This fully regioselective synthetic route tolerates a wide range of substituents, including those that give rise to the traditionally difficult to access electron-deficient isoquinoline skeletons. These two synthetic operations can be combined to give a three-component, one-pot isoquinoline synthesis. Alternatively, cyclization of the intermediates with hydroxylamine hydrochloride engenders direct access to isoquinoline N-oxides; and cyclization with methylamine, gives isoquinolinium salts. Significant diversity is available in the substituents at the C4 position in four-component, one-pot couplings, by either trapping the in situ intermediate after α-arylation with carbon or heteroatom-based electrophiles, or by performing an α,α-heterodiarylation to install aryl groups at this position. The α-arylation of nitrile and ester enolates gives access to 3-amino and 3-hydroxyisoquinolines and the α-arylation of tert-butyl cyanoacetate followed by electrophile trapping, decarboxylation and cyclization, C4-functionalized 3-aminoisoquinolines. An oxime directing group can be used to direct a C-H functionalization/bromination, which allows monofunctionalized rather than difunctionalized aryl precursors to be brought through this synthetic route.
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Affiliation(s)
- Ben S Pilgrim
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK.
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77
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Synthesis ofortho-(Fluoro)alkylated PyridinesviaVisible Light-Promoted Radical Isocyanide Insertion. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500674] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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78
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Abstract
This chapter focuses on recent developments in metal-free and metal-catalyzed arylations with diaryliodonium salts (diaryl-λ3-iodanes). Synthetic routes to diaryliodonium salts are briefly described, and chemoselectivity trends with unsymmetric iodonium salts are discussed.
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Affiliation(s)
- Berit Olofsson
- Arrhenius Laboratory, Department of Organic Chemistry, Stockholm University, 106 91, Stockholm, Sweden.
- Stellenbosch Institute for Advanced Study (STIAS), Wallenberg Research Centre at Stellenbosch University, Marais Street, Stellenbosch, 7600, South Africa.
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79
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Wang H, Yu S. Synthesis of Isoquinolones Using Visible-Light-Promoted Denitrogenative Alkyne Insertion of 1,2,3-Benzotriazinones. Org Lett 2015; 17:4272-5. [DOI: 10.1021/acs.orglett.5b01960] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hao Wang
- State Key
Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Shouyun Yu
- State Key
Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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80
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Angnes RA, Li Z, Correia CRD, Hammond GB. Recent synthetic additions to the visible light photoredox catalysis toolbox. Org Biomol Chem 2015; 13:9152-67. [PMID: 26242759 DOI: 10.1039/c5ob01349f] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The boom in visible light photoredox catalysis (VLPC) research has demonstrated that this novel synthetic approach is here to stay. VLPC enables reactive radical intermediates to be catalytically generated at ambient temperature, a feat not generally allowed through traditional pyrolysis- or radical initiator-based methodologies. VLPC has vastly extended the range of substrates and reaction schemes that have been traditionally the domain of radical reactions. In this review the photophysics background of VLPC will be briefly discussed, followed by a report on recent inroads of VLPC into decarboxylative couplings and radical C-H functionalization of aromatic compounds. The bulk of the review will be dedicated to advances in synergistic catalysis involving VLPC, namely the combination of photoredox catalysis with organocatalysis, including β-functionalization of carbonyl groups, functionalization of weak aliphatic C-H bonds, and anti-Markovnikov hydrofunctionalization of alkenes; dual catalysis with gold or with nickel, photoredox catalysis as an oxidation promoter in transition metal catalysis, and acid-catalyzed enantioselective radical addition to π systems.
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Affiliation(s)
- Ricardo A Angnes
- Chemistry Institute, State University of Campinas - Unicamp C.P. 6154, CEP. 13083-970, Campinas, São Paulo, Brazil
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81
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An XD, Yu S. Visible-Light-Promoted and One-Pot Synthesis of Phenanthridines and Quinolines from Aldehydes and O-Acyl Hydroxylamine. Org Lett 2015; 17:2692-5. [DOI: 10.1021/acs.orglett.5b01096] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-De An
- State Key
Laboratory of Analytical Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Shouyun Yu
- State Key
Laboratory of Analytical Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
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82
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Guo W, Li S, Tang L, Li M, Wen L, Chen C. Synthesis of 6-(Arylthio)phenanthridines by Copper-Catalyzed Tandem Reactions of 2-Biaryl Isothiocyanates with Diaryliodonium Salts. Org Lett 2015; 17:1232-5. [DOI: 10.1021/acs.orglett.5b00197] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Weisi Guo
- State
Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry
and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shoulei Li
- State
Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry
and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lin Tang
- State
Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry
and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ming Li
- State
Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry
and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lirong Wen
- State
Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry
and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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83
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Jiang H, An X, Tong K, Zheng T, Zhang Y, Yu S. Visible-Light-Promoted Iminyl-Radical Formation from Acyl Oximes: A Unified Approach to Pyridines, Quinolines, and Phenanthridines. Angew Chem Int Ed Engl 2015; 54:4055-9. [DOI: 10.1002/anie.201411342] [Citation(s) in RCA: 278] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Indexed: 01/12/2023]
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84
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Jiang H, An X, Tong K, Zheng T, Zhang Y, Yu S. Visible-Light-Promoted Iminyl-Radical Formation from Acyl Oximes: A Unified Approach to Pyridines, Quinolines, and Phenanthridines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411342] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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85
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Li J, He Y, Luo S, Lei J, Wang J, Xie Z, Zhu Q. Palladium-catalyzed intramolecular C(sp(2))-H imidoylation for the synthesis of six-membered N-heterocycles. J Org Chem 2015; 80:2223-30. [PMID: 25611368 DOI: 10.1021/jo502731n] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new strategy for the construction of phenanthridine and isoquinoline scaffolds, starting from arenes containing a pending isocyanide moiety under palladium catalysis, has been developed. This process involves sequential intermolecular isocyanide insertion to an aryl palladium(II) intermediate and intramolecular aromatic C-H activation as key steps. Alkyl palladium(II) intermediate lacking β-hydrogen is also applicable to this reaction, generating unique bisheterocyclic scaffolds with three C-C bonds being formed consecutively.
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Affiliation(s)
- Jing Li
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , 190 Kaiyuan Avenue, Guangzhou 510530, China
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86
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Modha SG, Greaney MF. Atom-Economical Transformation of Diaryliodonium Salts: Tandem C–H and N–H Arylation of Indoles. J Am Chem Soc 2015; 137:1416-9. [DOI: 10.1021/ja5124754] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sachin G. Modha
- School of Chemistry, University of Manchester, Oxford Rd, Manchester M13 9PL, United Kingdom
| | - Michael F. Greaney
- School of Chemistry, University of Manchester, Oxford Rd, Manchester M13 9PL, United Kingdom
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87
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Zhang B, Studer A. Recent advances in the synthesis of nitrogen heterocycles via radical cascade reactions using isonitriles as radical acceptors. Chem Soc Rev 2015; 44:3505-21. [DOI: 10.1039/c5cs00083a] [Citation(s) in RCA: 516] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Radical isonitrile insertion reactions are highly valuable for the construction of N-containing heterocycles such as phenanthridines, quinolines, isoquinolines, quinoxalines and indoles.
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Affiliation(s)
- Bo Zhang
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- 210009 Nanjing
- China
| | - Armido Studer
- Institute of Organic Chemistry
- Westfälische Wilhems-University
- 48149 Münster
- Germany
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88
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Qian P, Du B, Zhou J, Mei H, Han J, Pan Y. DBU-promoted cyclization of vinyl isocyanides with ethers via the functionalization of a C(sp3)–H bond for the synthesis of isoquinolines. RSC Adv 2015. [DOI: 10.1039/c5ra11530b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A DBU-promoted cascade functionalization of a C(sp3)–H bond adjacent to oxygen and a radical cyclization reaction of vinyl isocyanides was developed to easily access multi-functionalized isoquinolines.
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Affiliation(s)
- Ping Qian
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Bingnan Du
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Jie Zhou
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Haibo Mei
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Yi Pan
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
- State Key Laboratory of Coordination Chemistry
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89
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da Silva GP, Ali A, da Silva RC, Jiang H, Paixão MW. Tris(trimethylsilyl)silane and visible-light irradiation: a new metal- and additive-free photochemical process for the synthesis of indoles and oxindoles. Chem Commun (Camb) 2015; 51:15110-3. [DOI: 10.1039/c5cc06329a] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A combined tris(trimethylsilyl)silane and visible-light-promoted intramolecular reductive cyclization protocol for the synthesis of indoles and oxindoles has been developed.
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Affiliation(s)
| | - Akbar Ali
- Departamento de Química
- Universidade Federal de São Carlos
- São Carlos
- Brazil
| | | | - Hao Jiang
- Departamento de Química
- Universidade Federal de São Carlos
- São Carlos
- Brazil
| | - Márcio W. Paixão
- Departamento de Química
- Universidade Federal de São Carlos
- São Carlos
- Brazil
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90
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Sun X, Li J, Ni Y, Ren D, Hu Z, Yu S. Synthesis of Fused Quinoline and Quinoxaline Derivatives Enabled by Domino Radical Triple Bond Insertions. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402222] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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91
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Li J, Wang H, Liu L, Sun J. Metal-free, visible-light photoredox catalysis: transformation of arylmethyl bromides to alcohols and aldehydes. RSC Adv 2014. [DOI: 10.1039/c4ra09190f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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92
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Cheng Y, Yuan X, Jiang H, Wang R, Ma J, Zhang Y, Yu S. Regiospecific Synthesis of 1-Trifluoromethylisoquinolines Enabled by Photoredox Somophilic Vinyl Isocyanide Insertion. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400504] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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93
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Cao JJ, Zhu TH, Gu ZY, Hao WJ, Wang SY, Ji SJ. Silver-catalyzed 2-isocyanobiaryls insertion/cyclization with phosphine oxides: synthesis of 6-phosphorylated phenanthridines. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.078] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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94
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Wang H, Yu Y, Hong X, Xu B. Mn(ii)/O2-promoted oxidative annulation of vinyl isocyanides with boronic acids: synthesis of multi-substituted isoquinolines. Chem Commun (Camb) 2014; 50:13485-8. [DOI: 10.1039/c4cc06427e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An efficient manganese(ii)/O2-promoted oxidative radical cascade reaction was developed for the modular synthesis of multi-substituted isoquinolines from easily accessible vinyl isocyanides and boronic acids.
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Affiliation(s)
- Hao Wang
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444, China
| | - Yang Yu
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444, China
| | - Xiaohu Hong
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444, China
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444, China
- State Key Laboratory of Organometallic Chemistry
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95
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Wang J, Ma J, Li X, Li Y, Zhang G, Zhang F, Fan X. Cu2O mesoporous spheres with a high internal diffusion capacity and improved catalytic ability for the aza-Henry reaction driven by visible light. Chem Commun (Camb) 2014; 50:14237-40. [DOI: 10.1039/c4cc06869f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mesoporous Cu2O spheres with a large pore size (LP-Cu2O) bring out a better performance towards the photocatalytic aza-Henry reaction than Cu2O spheres with a small pore size (SP-Cu2O).
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Affiliation(s)
- Jun Wang
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin University
- Tianjin 300072, China
| | - Jingwen Ma
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin University
- Tianjin 300072, China
| | - Xiaojie Li
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin University
- Tianjin 300072, China
| | - Yang Li
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin University
- Tianjin 300072, China
| | - Guoliang Zhang
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin University
- Tianjin 300072, China
| | - Fengbao Zhang
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin University
- Tianjin 300072, China
| | - Xiaobin Fan
- State Key Laboratory of Chemical Engineering
- School of Chemical Engineering and Technology
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin University
- Tianjin 300072, China
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96
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Zhang B, Studer A. 1-Trifluoromethylated isoquinolines via radical trifluoromethylation of isonitriles. Org Biomol Chem 2014; 12:9895-8. [DOI: 10.1039/c4ob02145b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A simple and efficient approach to biologically important 1-trifluoroalkylated isoquinolines starting with readily prepared β-aryl-α-isocyano-acrylates and Rf-I(iii)-reagents (Rf = CF3, C2F5, C3F7) is described.
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Affiliation(s)
- Bo Zhang
- Westfälische Wilhems-University
- Institute of Organic Chemistry
- Münster, Germany
| | - Armido Studer
- Westfälische Wilhems-University
- Institute of Organic Chemistry
- Münster, Germany
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