1
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Yoshimatsu M, Goto H, Saito R, Iguchi K, Kikuchi M, Wasada H, Sawada Y. Cationic indium catalysis as a powerful tool for generating α-alkyl propargyl cations for S N1 reactions. Commun Chem 2023; 6:279. [PMID: 38104229 PMCID: PMC10725475 DOI: 10.1038/s42004-023-01048-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/31/2023] [Indexed: 12/19/2023] Open
Abstract
Dehydration is an abundant and promising process in chemical, biochemical, and industrial fields. Dehydration methods can contribute to building a modern and sustainable society with minimal environmental impact. Breakthrough advances in the dehydrative SN1 reaction can be achieved through the discovery of new cationic indium catalysts. Here we show that the breakthrough advances in the dehydrative SN1 reaction can be achieved using the cationic indium catalysts. The dehydrative carbon-carbon bond formation of α-alkyl propargyl alcohols afforded a wide variety of α-aryl- and heteroaryl-propargyl compounds. Mechanistic investigations into this process revealed that the InCl3/AgClO4/Bu4NPF6/1,1'-binaphthol catalytic system generated a powerful cationic indium catalyst that could promote the dehydration of alcohols. Labile α-alkyl propargyl cations were found to self-condense, and the catalyst system efficiently regenerated propargyl cations for reaction with nucleophiles. This propargylation reaction directly proceeded from the corresponding alcohols under mild and open-air conditions and tolerated a broad scope of functional groups. Furthermore, a wide variety of nucleophiles, including aromatic and heteroaromatic compounds, phenols, alcohols, and sulfonamides, reacted with the corresponding cations to afford the propargyl compounds in good to high yields. Finally, the synthetic utility of this reaction was demonstrated by the synthesis of colchicine and allocolchicine analogues. The dehydration process could help create new compounds that were previously impossible to synthesize and is more eco-friendly and efficient than conventional methods.
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Affiliation(s)
- Mitsuhiro Yoshimatsu
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan.
| | - Hiroki Goto
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Rintaro Saito
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Kodai Iguchi
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Manoka Kikuchi
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Hiroaki Wasada
- Department of Chemistry, Faculty of Regional Study, Gifu University, Yanagido 1-1, 501-1193, Gifu, Japan
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2
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Li SS, Zhao LL, Pan M, Feng N, Peng JB, Ma AJ. K 2CO 3-Promoted oxy-Michael Addition/Cyclization of α, β-Unsaturated Carbonyl Compounds with Naphthols: Synthesis of Naphthopyrans. Molecules 2023; 28:5502. [PMID: 37513372 PMCID: PMC10385152 DOI: 10.3390/molecules28145502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
A potassium carbonate promoted tandem oxy-Michael addition/cyclization of α,β-unsaturated carbonyl compounds with naphthol derivatives for the synthesis of 2-substituted naphthopyrans was developed. Using the readily available, inexpensive potassium carbonate as the promoter, a range of different substituted naphthopyrans were prepared.
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Affiliation(s)
- Shan-Shan Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Li-Li Zhao
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Min Pan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
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3
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Hu BL, Wu CF, Zhang XG, Kim J. Direct synthesis of trifluoroethylated benzofurans from silver-catalyzed annulation of trifluoromethyl propynols with phenols. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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4
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Yin H, Wu Y, Gu X, Feng Z, Wang M, Feng D, Wang M, Cheng Z, Wang S. Synthesis of pyrano[3,2- c]quinolones and furo[3,2- c]quinolones via acid-catalyzed tandem reaction of 4-hydroxy-1-methylquinolin-2(1 H)-one and propargylic alcohols. RSC Adv 2022; 12:21066-21078. [PMID: 35919834 PMCID: PMC9302472 DOI: 10.1039/d2ra03416f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/17/2022] [Indexed: 11/28/2022] Open
Abstract
Two acid-catalyzed tandem reactions between 4-hydroxy-1-methylquinolin-2(1H)-one and propargylic alcohols are described. Depending mainly on the propargylic alcohol used, these tandem reactions proceed via either a Friedel–Crafts-type allenylation followed by 6-endo-dig cyclization sequence to form pyrano[3,2-c]quinolones or a Friedel–Crafts-type alkylation and 5-exo-dig ring closure sequence to afford furo[3,2-c]quinolones in moderate-to-high yields. The pyrano[3,2-c]quinolones products could be further transformed to tetracyclic 4,9-dihydro-5H-cyclopenta[lmn]phenanthridin-5-one derivatives. Two acid-catalyzed tandem reactions between 4-hydroxy-1-methylquinolin-2(1H)-one and propargylic alcohols are described.![]()
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Affiliation(s)
- Haiting Yin
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Yunjun Wu
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Xiaoxia Gu
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Zhijun Feng
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Meifang Wang
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
- The Key Laboratory of Antiinflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Dexiang Feng
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Ming Wang
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Ziyang Cheng
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
| | - Shaoyin Wang
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Chunhui Scientific Research Interest Group, Wannan Medical College, Wuhu 241002, China
- The Key Laboratory of Antiinflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei 230032, China
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5
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Man N, Li Y, Jie J, Li H, Yang H, Zhao Y, Fu H. Synthesis of Chiral Propargylamines, Chiral 1,2-Dihydronaphtho[2,1-b]furans and Naphtho[2,1-b]furans with C-Alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals and β-Naphthols. Chemistry 2021; 27:12884-12889. [PMID: 34133047 DOI: 10.1002/chem.202102040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 12/21/2022]
Abstract
Chiral phosphoric acid-catalyzed couplings of C-alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals with β-naphthols led to chiral propargylamines in moderate to high yields with high to excellent enantioselectivity, in which the reactions underwent sequential chiral phosphoric acid-catalyzed in situ formation of N-(tert-butoxycarbonyl)-imines (N-Boc-imines) from the aminals, and 1,2-addition of β-naphthols to the N-Boc-imines. Chiral 1,2-dihydronaphtho[2,1-b]furans and naphtho[2,1-b]furans were prepared with satisfactory results when 10 mol% AgOAc and 20 mol% 2,6-lutidine or 1.2 equiv. of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) were added to the resulting chiral propargylamines solution, respectively.
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Affiliation(s)
- Ningning Man
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuming Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiyang Jie
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hongyun Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yufen Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
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6
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de la Cruz-Martínez F, Martínez de Sarasa Buchaca M, Fernández-Baeza J, Sánchez-Barba LF, Rodríguez AM, Castro-Osma JA, Lara-Sánchez A. Zinc-Catalyzed Hydroalkoxylation/Cyclization of Alkynyl Alcohols. Inorg Chem 2021; 60:5322-5332. [PMID: 33719419 DOI: 10.1021/acs.inorgchem.1c00309] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Despite the great interest in zinc catalysis for hydroelementation reactions, the use of zinc complexes as catalysts for the hydroalkoxylation of alkynyl alcohols has not been reported to date. Scorpionate zinc complexes have been successfully designed as precatalysts for the hydroalkoxylation reaction of alkynyl alcohols under mild reaction conditions. Zinc amide complex 8 has been shown to be an excellent precatalyst for the highly selective intramolecular hydroalkoxylation process to yield the corresponding exocyclic enol ethers. Kinetic studies have been performed and confirmed that reactions are first-order in [catalyst] and zero-order in [alkynyl alcohol]. NMR spectroscopy and X-ray diffraction analysis provided evidence for the formation of an alkynyl zinc compound which has been shown to be a key intermediate in the hydroalkoxylation process. On the basis of the experimental results, a catalytic cycle is proposed.
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Affiliation(s)
- Felipe de la Cruz-Martínez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, 13071-Ciudad Real, Spain
| | - Marc Martínez de Sarasa Buchaca
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, 13071-Ciudad Real, Spain
| | - Juan Fernández-Baeza
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, 13071-Ciudad Real, Spain
| | - Luis F Sánchez-Barba
- Universidad Rey Juan Carlos, Departamento de Biología y Geología, Física y Química Inorgánica, 28933-Móstoles, Spain
| | - Ana M Rodríguez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, 13071-Ciudad Real, Spain
| | - José A Castro-Osma
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia, 02071-Albacete, Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, 13071-Ciudad Real, Spain
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7
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Song B, Wang M, Xu M, Kong L, Xie H, Wang C, Li Y. Controllable synthesis of pyrido[2,3-b]indol-4-ones or indolo[3,2-b]quinolines via formal intramolecular C(sp 2)-H functionalization. Org Biomol Chem 2019; 17:9960-9965. [PMID: 31730146 DOI: 10.1039/c9ob02108f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Fe-catalyzed protocol for the controllable synthesis of pyrido[2,3-b]indol-4-ones or indolo[3,2-b]quinolines has been developed by using indole-2-carboxylic derivatives as starting materials. Indole-2-carboxenamines were transformed into pyrido[2,3-b]indol-4-ones through intramolecular N-H/C-H coupling, in which a carbonyl 1,2-migration was involved. Whereas, when indole-2-carboxarylamines were employed, indolo[3,2-b]quinolones were produced through direct N-H/C-H coupling. The desired products were obtained under mild reaction conditions in moderate to good yields with wide substrate scope. The natural product quindolinone was conveniently prepared by this reaction.
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Affiliation(s)
- Bo Song
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
| | - Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
| | - Murong Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
| | - Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
| | - Huihui Xie
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
| | - Chengyu Wang
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
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8
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Sreenivasulu C, Thadathil DA, Pal S, Gedu S. A simple Lewis acid induced reaction of phenols with electrophiles: Synthesis of functionalized 4H-chromenes and ortho-benzylphenols. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1689268] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | | | - Sumit Pal
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, India
| | - Satyanarayana Gedu
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, India
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9
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Fairley M, Davin L, Hernán-Gómez A, García-Álvarez J, O'Hara CT, Hevia E. s-Block cooperative catalysis: alkali metal magnesiate-catalysed cyclisation of alkynols. Chem Sci 2019; 10:5821-5831. [PMID: 31293771 PMCID: PMC6568277 DOI: 10.1039/c9sc01598a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/26/2019] [Indexed: 01/04/2023] Open
Abstract
Through mixed metal cooperativity, alkali metal magnesiates efficiently catalyse the cyclisation of alkynols.
Mixed s-block metal organometallic reagents have been successfully utilised in the catalytic intramolecular hydroalkoxylation of alkynols. This success has been attributed to the unique manner in which these reagents can overcome the challenges of the reaction: namely OH activation and coordination to and then addition across a C
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C bond. In order to optimise the reaction conditions and to garner vital catalytic system requirements, a series of alkali metal magnesiates were enlisted for the catalytic intramolecular hydroalkoxylation of 4-pentynol. In a prelude to the main investigation, the homometallic magnesium dialkyl reagent MgR2 (where R = CH2SiMe3) was utilised. This reagent was unsuccessful in cyclising the alcohol into 2-methylenetetrahydrofuran 2a or 5-methyl-2,3-dihydrofuran 2b, even in the presence of multidentate Lewis donor molecules such as N,N,N′,N′′,N′′-pentamethyldiethylenetriamine (PMDETA). Alkali metal magnesiates MIMgR3 (when MI = Li, Na or K) performed the cyclisation unsatisfactorily both in the absence/presence of N,N,N′,N′-tetramethylethylenediamine (TMEDA) or PMDETA. When higher-order magnesiates (i.e., MI2MgR4) were employed, in general a marked increase in yield was observed for MI = Na or K; however, the reactions were still sluggish with long reaction times (22–36 h). A major improvement in the catalytic activity of the magnesiates was observed when the crown ether molecule 15-crown-5 was combined with sodium magnesiate Na2MgR4(TMEDA)2 furnishing yields of 87% with 2a : 2b ratios of 95 : 5 after 5 h. Similar high yields of 88% with 2a : 2b ratios of 90 : 10 after 3 h were obtained combining 18-crown-6 with potassium magnesiate K2MgR4(PMDETA)2. Having optimised these systems, substrate scope was examined to probe the range and robustness of 18-crown-6/K2MgR4(PMDETA)2 as a catalyst. A wide series of alkynols, including terminal and internal alkynes which contain a variety of potentially reactive functional groups, were cyclised. In comparison to previously reported monometallic systems, bimetallic 18-crown-6/K2MgR4(PMDETA)2 displays enhanced reactivity towards internal alkynol-cyclisation. Kinetic studies revealed an inhibition effect of substrate on the catalysts via adduct formation and requiring dissociation prior to the rate limiting cyclisation step.
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Affiliation(s)
- Michael Fairley
- WestCHEM , Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow , G1 1XL , UK .
| | - Laia Davin
- WestCHEM , Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow , G1 1XL , UK .
| | - Alberto Hernán-Gómez
- WestCHEM , Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow , G1 1XL , UK .
| | - Joaquín García-Álvarez
- Departamento de Química Orgánica e Inorgánica , Facultad de Química , Universidad de Oviedo , E-33071 Oviedo , Spain
| | - Charles T O'Hara
- WestCHEM , Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow , G1 1XL , UK .
| | - Eva Hevia
- WestCHEM , Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow , G1 1XL , UK .
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10
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He X, Choy PY, Leung MP, Yuen OY, Liu T, Shang Y, Kwong FY. A ZnI2-catalyzed regioselective cascade 1,4-conjugate addition/5-exo-dig annulation pathway for one-pot access to heterobiaryl frameworks. Chem Commun (Camb) 2019; 55:15069-15072. [DOI: 10.1039/c9cc07054k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Facile access to π-extended heterobiaryl compounds via a non-cross-coupling strategy has been achieved.
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Affiliation(s)
- Xinwei He
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
- Key Laboratory of Functional Molecular Solids
| | - Pui Ying Choy
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - Man Pan Leung
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - On Ying Yuen
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - Tianyi Liu
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000
| | - Fuk Yee Kwong
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry
- The Chinese University of Hong Kong
- Shatin
- P. R. China
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11
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Sreenivasulu C, Satyanarayana G. Zinc-Chloride-Promoted Domino Reaction of Phenols with Terminal Alkynes under Solvent-Free Conditions: An Efficient Synthesis of Chromenes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800391] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | - Gedu Satyanarayana
- Department of Chemistry; Indian Institute of Technology Hyderabad; 502 285 Kandi, Sangareddy Telangana India
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12
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Bollikolla HB, Choppakatla S, Polam N, Thripuram VD, Chidipudi SR. Synthesis of Benzopyrans by Enolate-Directed Rhodium-Catalyzed Oxidative C−H Alkenylation of 1,3-Dicarbonyl Compounds. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Hari Babu Bollikolla
- Department of Chemistry; Acharya Nagarjuna University, Nagarjuna Nagar; Guntur 522 510, AP India
| | - Subrahmanyam Choppakatla
- Department of Chemistry; Acharya Nagarjuna University, Nagarjuna Nagar; Guntur 522 510, AP India
| | - Naresh Polam
- Department of Chemistry; Acharya Nagarjuna University, Nagarjuna Nagar; Guntur 522 510, AP India
| | - Vijaya Durga Thripuram
- Department of Chemistry; Acharya Nagarjuna University, Nagarjuna Nagar; Guntur 522 510, AP India
| | - Suresh Reddy Chidipudi
- Spiro Organics Pvt. Ltd.; Plot No: 381, Ushodaya Colony, Jeedimetla Hyderabad- 500 055 India
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13
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Yaragorla S, Dada R, Singh G, Pareek A, Rana M, Sharma AK. Ca(II)-Catalyzed Regioselective Cascade Synthesis of Oxindolyl- Naphthofurans through Meyer-Schuster type Rearrangement. ChemistrySelect 2016. [DOI: 10.1002/slct.201601349] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Ravikrishna Dada
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Garima Singh
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Abhishek Pareek
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Monika Rana
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
| | - Anuj K. Sharma
- Department of Chemistry; School of Chemical Sciences & Pharmacy; Central University of Rajasthan, NH-8, Ajmer Distt; Rajasthan 305817 India
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14
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Tochigi A, Tsukamoto K, Suzuki N, Masuyama Y. Catalytic Availabilities of Lewis Acidic SnCl2: Ph3PAuCl-SnCl2Composite Catalyzed Successiveortho-Alkenylation/O-Alkenylation of Phenols Followed by Cyclization to 1-Benzopyrans. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Atsushi Tochigi
- Department of Materials and Life Sciences; Faculty of Science and Technology; Sophia University; 7-1 Kioicho, Chiyoda-ku 102-8554 Tokyo Japan
| | - Kadzuoki Tsukamoto
- Department of Materials and Life Sciences; Faculty of Science and Technology; Sophia University; 7-1 Kioicho, Chiyoda-ku 102-8554 Tokyo Japan
| | - Noriyuki Suzuki
- Department of Materials and Life Sciences; Faculty of Science and Technology; Sophia University; 7-1 Kioicho, Chiyoda-ku 102-8554 Tokyo Japan
| | - Yoshiro Masuyama
- Department of Materials and Life Sciences; Faculty of Science and Technology; Sophia University; 7-1 Kioicho, Chiyoda-ku 102-8554 Tokyo Japan
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15
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Kumarswamyreddy N, Kesavan V. Stereoselective and Regioselective Assembly of Spirooxindole [2,1-b]furan Motifs through a Tandem Friedel-Crafts Alkylation/5-exo-dig-Cyclization. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nandarapu Kumarswamyreddy
- Chemical Biology Laboratory; Department of Biotechnology; Indian Institute of Technology Madras; Bhupat and Jyoti Mehta School of Biosciences; Chennai 600036 India
| | - Venkitasamy Kesavan
- Chemical Biology Laboratory; Department of Biotechnology; Indian Institute of Technology Madras; Bhupat and Jyoti Mehta School of Biosciences; Chennai 600036 India
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16
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One-pot synthesis of 3-naphtho[2,1-b]furanyl-2-oxindoles from 3-(arylethynyl)-3-hydroxyindolin-2-ones and 2-naphthols. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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17
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Vijayan A, Baiju T, Varughese S, Radhakrishnan K. Transition metal free intramolecular approach for the synthesis of cyclopenta[ b ]chromene derivatives from phenol substituted fulvene derived azabicyclic olefins. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Martínez J, Otero A, Lara-Sánchez A, Castro-Osma JA, Fernández-Baeza J, Sánchez-Barba LF, Rodríguez AM. Heteroscorpionate Rare-Earth Catalysts for the Hydroalkoxylation/Cyclization of Alkynyl Alcohols. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00203] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Javier Martínez
- Universidad de Castilla-La Mancha, Departamento de Química
Inorgánica, Orgánica y Bioquímica, Instituto
Regional de Investigación Científica Aplicada (IRICA),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), 13071 Ciudad Real, Spain
| | - Antonio Otero
- Universidad de Castilla-La Mancha, Departamento de Química
Inorgánica, Orgánica y Bioquímica, Instituto
Regional de Investigación Científica Aplicada (IRICA),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), 13071 Ciudad Real, Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha, Departamento de Química
Inorgánica, Orgánica y Bioquímica, Instituto
Regional de Investigación Científica Aplicada (IRICA),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), 13071 Ciudad Real, Spain
| | - José Antonio Castro-Osma
- Universidad de Castilla-La Mancha, Departamento de Química
Inorgánica, Orgánica y Bioquímica, Instituto
Regional de Investigación Científica Aplicada (IRICA),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), 13071 Ciudad Real, Spain
| | - Juan Fernández-Baeza
- Universidad de Castilla-La Mancha, Departamento de Química
Inorgánica, Orgánica y Bioquímica, Instituto
Regional de Investigación Científica Aplicada (IRICA),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), 13071 Ciudad Real, Spain
| | - Luis F. Sánchez-Barba
- Departamento
de Biología y Geología, Física y Química
Inorgánica, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain
| | - Ana M. Rodríguez
- Universidad de Castilla-La Mancha, Departamento de Química
Inorgánica, Orgánica y Bioquímica, Instituto
Regional de Investigación Científica Aplicada (IRICA),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), 13071 Ciudad Real, Spain
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19
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Tharra P, Baire B. Regioselective, cascade [3+2] annulation of β-naphthols (resorcinols) with Z-enoate propargylic alcohols: a novel entry for the synthesis of complex naphtho(benzo)furans. Chem Commun (Camb) 2016; 52:14290-14293. [DOI: 10.1039/c6cc08126f] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented regioselective, first cascade [3+2] annulation process has been reported between propargylic alcohols and β-naphthols (resorcinols) for the synthesis of naphtho(benzo)furans.
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Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
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20
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Pareek A, Dada R, Rana M, Sharma AK, Yaragorla S. n
Bu4NPF6 promoted regioselective cascade synthesis of functionally embellished naphthofurans under acid, metal & solvent free conditions. RSC Adv 2016. [DOI: 10.1039/c6ra17411f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Various naphthofurans were synthesised from naphthols and propargyl alcohols using a cascade benzylation/5-exo dig cyclisation/isomerization. Preliminary studies showed that some naphthofurans were excellent inhibitors for amyloid formation.
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Affiliation(s)
| | | | - Monika Rana
- Department of Chemistry
- Central University of Rajasthan
- India
| | - Anuj K. Sharma
- Department of Chemistry
- Central University of Rajasthan
- India
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21
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22
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Kim JH, Kim SW, Jung MS, Ahn KH, Kang EJ. Regioselectivities in Fe(III)-catalyzed Cycloisomerization Reactions of γ-Allenyl Alcohols. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10581] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jae Hyung Kim
- Department of Applied Chemistry; Kyung Hee University; Yongin 449-701 Korea
| | - Seung Wook Kim
- Department of Applied Chemistry; Kyung Hee University; Yongin 449-701 Korea
| | - Min Seok Jung
- Department of Applied Chemistry; Kyung Hee University; Yongin 449-701 Korea
| | - Kwang-Hyun Ahn
- Department of Applied Chemistry; Kyung Hee University; Yongin 449-701 Korea
| | - Eun Joo Kang
- Department of Applied Chemistry; Kyung Hee University; Yongin 449-701 Korea
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23
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Wang W, Huang J, Zhou R, Jiang ZJ, Fu HY, Zheng XL, Chen H, Li RX. A Simple and Efficient Access to Naphtho[b]furans by Claisen Rearrangement/Cyclization of Bromonaphthyl 3-Phenylallyl Ethers. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500151] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Affiliation(s)
- Nilanjana Majumdar
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
- Institute of Microbial Chemistry, Tokyo, 3-14-23 Kamiosaki,
Shinagawa-ku, Tokyo 141-0021, Japan
| | - Nanda D. Paul
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - Sutanuva Mandal
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bas de Bruin
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - William D. Wulff
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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25
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Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
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26
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Zhang F, Li C, Wang C, Qi C. Facile synthesis of benzoindoles and naphthofurans through carbonaceous material-catalyzed cyclization of naphthylamines/naphthols with nitroolefins in water. Org Biomol Chem 2015; 13:5022-9. [DOI: 10.1039/c5ob00129c] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A facile and efficient approach has been established for the synthesis of benzoindole and naphthofuran derivatives via the metal-free cyclization reaction of nitroolefins with naphthylamines/naphthols.
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Affiliation(s)
- Furen Zhang
- School of Chemistry and Chemical Engineering
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process
- Shaoxing University
- Shaoxing
- China
| | - Chunmei Li
- School of Chemistry and Chemical Engineering
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process
- Shaoxing University
- Shaoxing
- China
| | - Chen Wang
- School of Chemistry and Chemical Engineering
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process
- Shaoxing University
- Shaoxing
- China
| | - Chenze Qi
- School of Chemistry and Chemical Engineering
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process
- Shaoxing University
- Shaoxing
- China
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27
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Zhang J, Yao J, Liu J, Xue S, Li Y, Wang C. Four-component reaction between naphthols, substituted β-nitrostyrenes, substituted benzaldehydes and ammonium acetate in water–PEG-400: an approach to construct polysubstituted naphthofuranamines. RSC Adv 2015. [DOI: 10.1039/c5ra07642k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The diversity-oriented synthesis of naphtho[b]furans via a four-component reaction between naphthanols, substituted β-nitrostyrenes, substituted benzaldehydes and ammonium acetate has been developed.
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Affiliation(s)
- Jungui Zhang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
- New Division: School of Hydraulic
| | - Juan Yao
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Jiaming Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Shuwen Xue
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yang Li
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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28
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Renko D, Provot O, Rasolofonjatovo E, Bignon J, Rodrigo J, Dubois J, Brion JD, Hamze A, Alami M. Rapid synthesis of 4-arylchromenes from ortho-substituted alkynols: A versatile access to restricted isocombretastatin A-4 analogues as antitumor agents. Eur J Med Chem 2015; 90:834-44. [DOI: 10.1016/j.ejmech.2014.12.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 12/11/2014] [Accepted: 12/13/2014] [Indexed: 01/12/2023]
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29
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Kong L, Zhou Y, Huang H, Yang Y, Liu Y, Li Y. Copper-Catalyzed Synthesis of Substituted Quinolines via C–N Coupling/Condensation from ortho-Acylanilines and Alkenyl Iodides. J Org Chem 2014; 80:1275-8. [DOI: 10.1021/jo502630t] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yuanyuan Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - He Huang
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yang Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yuanyuan Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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30
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Greenhalgh MD, Jones AS, Thomas SP. Iron-Catalysed Hydrofunctionalisation of Alkenes and Alkynes. ChemCatChem 2014. [DOI: 10.1002/cctc.201402693] [Citation(s) in RCA: 260] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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31
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32
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Li WT, Nan WH, Luo QL. Metal-free sequential reaction via a propargylation, annulation and isomerization sequence for the one-pot synthesis of 2,3-disubstituted benzofurans. RSC Adv 2014. [DOI: 10.1039/c4ra05503a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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33
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Feng X, Wang Q, Huang ZB, Shi DQ. Fe-promoted oxidative cyclization of α-benzoylthioformanilides for the synthesis of 2-benzoylbenzothiazoles. RSC Adv 2014. [DOI: 10.1039/c4ra09495f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This protocol has the advantages of short reaction times, moderate to good yields, convenient manipulation, and high selectivities.
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Affiliation(s)
- Xian Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou, P. R. China
| | - Qian Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou, P. R. China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou, P. R. China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou, P. R. China
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34
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Hussain MK, Ansari MI, Kant R, Hajela K. Tandem C-2 Functionalization–Intramolecular Azide–Alkyne 1,3-Dipolar Cycloaddition Reaction: A Convenient Route to Highly Diversified 9H-Benzo[b]pyrrolo[1,2-g][1,2,3]triazolo[1,5-d][1,4]diazepines. Org Lett 2013; 16:560-3. [DOI: 10.1021/ol403420z] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Mohd. Kamil Hussain
- Medicinal and Process Chemistry
Division and §Molecular and Structural Biology
Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension,
Sitapur Road Lucknow 226031, India
| | - Mohd. Imran Ansari
- Medicinal and Process Chemistry
Division and §Molecular and Structural Biology
Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension,
Sitapur Road Lucknow 226031, India
| | - Ruchir Kant
- Medicinal and Process Chemistry
Division and §Molecular and Structural Biology
Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension,
Sitapur Road Lucknow 226031, India
| | - Kanchan Hajela
- Medicinal and Process Chemistry
Division and §Molecular and Structural Biology
Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension,
Sitapur Road Lucknow 226031, India
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35
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Yuan FQ, Han FS. Iron-Catalyzed Direct Synthesis of Densely Substituted Benzofurans and Naphthopyrans from Phenolic Compounds and Propargylic Alcohols. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200804] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Jung MS, Kim WS, Shin YH, Jin HJ, Kim YS, Kang EJ. Chemoselective Activities of Fe(III) Catalysts in the Hydrofunctionalization of Allenes. Org Lett 2012; 14:6262-5. [DOI: 10.1021/ol303021d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Min Seok Jung
- Department of Applied Chemistry, Kyung Hee University, Yongin 446-701, Korea
| | - Won Sun Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin 446-701, Korea
| | - Ye Ho Shin
- Department of Applied Chemistry, Kyung Hee University, Yongin 446-701, Korea
| | - Ha Jeong Jin
- Department of Applied Chemistry, Kyung Hee University, Yongin 446-701, Korea
| | - Young Sam Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin 446-701, Korea
| | - Eun Joo Kang
- Department of Applied Chemistry, Kyung Hee University, Yongin 446-701, Korea
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37
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Sandaroos R, Damavandi S. Ultrasound-assisted one-pot synthesis of disubstituted and trisubstituted 1H-benzo[f]chromene derivatives catalyzed by 4-nitro-2,6-diacetylpyridinebis(2,4,6-trimethylaniline)FeCl2. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0933-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Wobser SD, Marks TJ. Organothorium-Catalyzed Hydroalkoxylation/Cyclization of Alkynyl Alcohols. Scope, Mechanism, and Ancillary Ligand Effects. Organometallics 2012. [DOI: 10.1021/om300881b] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Stephen D. Wobser
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113,
United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113,
United States
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39
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Herrero MT, de Sarralde JD, SanMartin R, Bravo L, Domínguez E. Cesium Carbonate-Promoted Hydroamidation of Alkynes: Enamides, Indoles and the Effect of Iron(III) Chloride. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200430] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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Prasada Rao Lingam V, Dahale DH, Mukkanti K, Gopalan B, Thomas A. Microwave-assisted Claisen rearrangement of naphthyl 2-propynyl ethers: synthesis of naphthofurans. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.053] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Bu X, Hong L, Liu R, Hong J, Zhang Z, Zhou X. Regioselective synthesis of substituted naphthalenes and phenanthrenes by FeCl3-promoted annulation of aryl and naphthyl acetaldehydes with alkynes. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Patil NT, Kavthe RD, Shinde VS. Transition metal-catalyzed addition of C-, N- and O-nucleophiles to unactivated C–C multiple bonds. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.05.125] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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43
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Raji Reddy C, Krishna G, Kavitha N, Latha B, Shin DS. Access to 2,3-Disubstituted Benzofurans through One-Pot Acid-Catalyzed Nucleophilic Substitution/TBAF-Mediated Oxacycloisomerization. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200708] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Molecular iodine mediated cyclization reactions of 2-(1-alkynyl)benzylic alcohols to substituted indenones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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45
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46
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Sashidhara KV, Kumar A, Agarwal S, Kumar M, Kumar B, Sridhar B. A Simple and Efficient Access to New Functionalized 4-Phenacylideneflavenes#. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100757] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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47
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Cui L, He Y, Fan X. A Sustainable Synthesis of 2-Benzoxazyl and 2-Benzothiazyl Ketones from Alkynyl Bromides and 2-Amino(thio)phenols Promoted by a Recyclable Catalytic System. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100472] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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48
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First example of multicomponent synthesis of 1-ethoxy-3-(4-aryl)-1-phenyl-1H-benzo[f]chromene derivatives. CHINESE CHEM LETT 2012. [DOI: 10.1016/j.cclet.2011.11.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Takahashi N, Nagase Y, Tanabe G, Muraoka O, Yoshimatsu M. Synthesis of 3-methyl- and 3,4-dimethylfurans using alkoxide, thiolate, and phenoxide-mediated cyclization of 4-oxahepta-1,6-diynes bearing sulfur and selenium functional groups. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.096] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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Liu P, Deng CL, Lei X, Lin GQ. Tandem Amination/Cycloisomerization of Aryl Propargylic Alcohols with 2-Aminopyridines as an Expedient Route to Imidazo[1,2-a]pyridines. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101053] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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