1
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David M, Galli E, Brown RCD, Feroci M, Vetica F, Bortolami M. 1-Butyl-3-methylimidazolium tetrafluoroborate as suitable solvent for BF 3: the case of alkyne hydration. Chemistry vs electrochemistry. Beilstein J Org Chem 2023; 19:1966-1981. [PMID: 38169890 PMCID: PMC10760484 DOI: 10.3762/bjoc.19.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
In order to replace the expensive metal/ligand catalysts and classic toxic and volatile solvents, commonly used for the hydration of alkynes, the hydration reaction of alkynes was studied in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (BMIm-BF4) adding boron trifluoride diethyl etherate (BF3·Et2O) as catalyst. Different ionic liquids were used, varying the cation or the anion, in order to identify the best one, in terms of both efficiency and reduced costs. The developed method was efficaciously applied to different alkynes, achieving the desired hydration products with good yields. The results obtained using a conventional approach (i.e., adding BF3·Et2O) were compared with those achieved using BF3 electrogenerated in BMIm-BF4, demonstrating the possibility of obtaining the products of alkyne hydration with analogous or improved yields, using less hazardous precursors to generate the reactive species in situ. In particular, for terminal arylalkynes, the electrochemical route proved to be advantageous, yielding preferentially the hydration products vs the aldol condensation products. Importantly, the ability to recycle the ionic liquid in subsequent reactions was successfully demonstrated.
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Affiliation(s)
- Marta David
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via Castro Laurenziano, 7, 00161 Rome, Italy
| | - Elisa Galli
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via Castro Laurenziano, 7, 00161 Rome, Italy
| | - Richard C D Brown
- School of Chemistry, University of Southampton, Southampton SO17 1BJ, UK
| | - Marta Feroci
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via Castro Laurenziano, 7, 00161 Rome, Italy
| | - Fabrizio Vetica
- Department of Chemistry, Sapienza University of Rome, piazzale Aldo Moro, 5, 00185 Rome, Italy
| | - Martina Bortolami
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, via Castro Laurenziano, 7, 00161 Rome, Italy
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2
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Yuan H, Ji M, Xue H, Chen H, Zhang Y. Understanding the hydration of arylacetylenes to synthesize the carbonyl compounds via electroreduction of bromide intermediates. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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3
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Li B, Zhou Y, Sun Y, Xiong F, Gu L, Ma W, Mei R. Electrochemical selenium-π-acid promoted hydration of alkynyl phosphonates. Chem Commun (Camb) 2022; 58:7566-7569. [PMID: 35708585 DOI: 10.1039/d2cc01901a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An unprecedented electrochemical selenium-π-acid promoted hydration of internal alkynes bearing a phosphonate auxiliary was described. Thus, valuable (hetero)aryl and alkyl ketones could be accessed under mild, metal- and external oxidant-free conditions. This protocol features high atom-economy, good chemo- and regio-selectivity, excellent functional group tolerance and easily transformable products. Control experiments demonstrate that phosphonate assistance is essential for this transformation.
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Affiliation(s)
- Bo Li
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.,Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Yunhao Zhou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Yanan Sun
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China
| | - Feng Xiong
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China
| | - Linghui Gu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Ruhuai Mei
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.,Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
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4
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Xie Y, Wang J, Wang Y, Han S, Yu H. Hydration of Alkynes to Ketones with an Efficient and Practical Polyoxomolybdate‐based Cobalt Catalyst. ChemCatChem 2021. [DOI: 10.1002/cctc.202101180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ya Xie
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 P. R. China
| | - Jingjing Wang
- Laboratoire d' Electrochimie et de Chimie Physique du Corps Solide Université de Strasbourg Institut de Chimie, UMR CNRS 7177 4 rue Blaise Pascal CS 90032 67081 Strasbourg cedex France
| | - Yunyun Wang
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 P. R. China
| | - Sheng Han
- School of Chemistry and Chemical Engineering Shanghai University of Engineering Science 333 Longteng Road Shanghai 201620 P. R. China
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
| | - Han Yu
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University 30 Shuangqing Road Beijing 100084 P.R. China
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5
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Giel MC, Barrow AS, Smedley CJ, Lewis W, Moses JE. Aminium cation-radical catalysed selective hydration of ( E)-aryl enynes. Chem Commun (Camb) 2021; 57:6991-6994. [PMID: 34159967 DOI: 10.1039/d1cc02257a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydration of carbon-carbon triple bonds is an important and atom economic synthetic transformation. Herein, we report a mild and selective method for the catalytic Markovnikov hydration of (E)-aryl enynes to the corresponding enones, mediated through the bench-stable aminium salt, tris(4-bromophenyl)ammoniumyl hexachloroantimonate (TBPA). The chemoselective and diastereoselective method proceeds under neutral metal-free conditions, delivering excellent product yields from terminal and internal alkyne units. The synthesis of biologically important (E)-3-styrylisocoumarins, including a formal synthesis of the natural product achlisocoumarin III, demonstrates the utility of this novel transformation.
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Affiliation(s)
- Marie-Claire Giel
- La Trobe Institute for Molecular Science, Melbourne, VIC 3086, Australia
| | - Andrew S Barrow
- La Trobe Institute for Molecular Science, Melbourne, VIC 3086, Australia
| | | | - William Lewis
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - John E Moses
- Cancer Center, Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA. and Department of Chemistry, Stony Brook University, NY 11794, USA
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6
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Hu Y, Dong S, Zhang Z, Wang L, Zhang J. Insights into the synergistic influence of [Emim][OAc] and AgOAc for the hydration of propargylic alcohols to α-hydroxy ketones in the presence of CO 2. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01064f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A catalytic mechanism including metals, ionic liquids, and co-catalysts is elucidated for the first time.
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Affiliation(s)
- Yuhang Hu
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Shuya Dong
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Zhengkun Zhang
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Li Wang
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
| | - Jinglai Zhang
- Henan Engineering Research Center of Green Anticorrosion Technology for Magnesium Alloys
- Henan University
- Kaifeng
- PR China
- Henan Engineering Research Center of Corrosion and Protection for Magnesium Alloys
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7
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Cortés I, di Liberto MG, Kaufman TS, Derita MG, Bracca ABJ. Synthesis and evaluation of aromatic methoxime derivatives against five postharvest phytopathogenic fungi of fruits. Main structure-activity relationships. Food Chem 2020; 321:126701. [PMID: 32283502 DOI: 10.1016/j.foodchem.2020.126701] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 01/16/2023]
Abstract
The antifungal activity of a library of twenty-four aromatic methoximes was examined against five representative postharvest phytopathogenic fungi. The panel included Penicillium digitatum, Penicillium italicum, Rhizopus stolonifer, Botrytis cinerea and Monilinia fructicola, all of which cause relevant economic losses worldwide as a result of affecting harvested fruits. The minimum inhibitory concentrations and minimum fungicidal concentrations of each compound were defined and the main structure-activity relationships were determined. Although other congeners were more potent, drug likeliness considerations pointed to the methoxime derived from 2,4-dihydroxypropiophenone as the compound with the most suitable profile. The morphology of the colonies of the fungal strains treated with the methoxime was examined microscopically and the compound was also tested in freshly harvested peaches and oranges, exhibiting promising control profiles in both fruits, similar to those of the commercial agents Imazalil and Carbendazim.
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Affiliation(s)
- Iván Cortés
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, (2000) Rosario, Argentina
| | - Melina G di Liberto
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK, Rosario, Argentina
| | - Teodoro S Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, (2000) Rosario, Argentina.
| | - Marcos G Derita
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK, Rosario, Argentina; Instituto de Ciencias Agropecuarias del Litoral (ICiAgro Litoral, Universidad Nacional del Litoral-CONICET), Kreder 2805, (3080) Esperanza, Argentina.
| | - Andrea B J Bracca
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, (2000) Rosario, Argentina.
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8
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Sha Y, Bai W, Zhou Y, Jiang J, Ju X. Acylruthenium Complexes from Reactions of RuCl
2
(PPh
3
)
3
with Terminal Alkynes. ChemistrySelect 2020. [DOI: 10.1002/slct.202000498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuzhuo Sha
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering Dalian University of Technology Liaoning 116024 P.R. China
| | - Wei Bai
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering Dalian University of Technology Liaoning 116024 P.R. China
| | - Yan Zhou
- School of Chemistry and Chemical Engineering Guangxi University for Nationalities 188 Daxue East Road, Nanning Guangxi 530006 P.R. China
| | - Jingyang Jiang
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering Dalian University of Technology Liaoning 116024 P.R. China
| | - Xianchun Ju
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering Dalian University of Technology Liaoning 116024 P.R. China
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9
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Kiyota S, Hirano M. An insight into regioselectivity in the transformation through a ruthenacycle. NEW J CHEM 2020. [DOI: 10.1039/c9nj04880d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Ru(0)-Catalysed cross-dimerisation of unsymmetrical internal alkynes with conjugated dienes yields two conjugated trienes depending on the regioselectivity. The regioselectivity is dominantly controlled by the induction effect of the substituents.
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Affiliation(s)
- Sayori Kiyota
- Department of Applied Chemistry
- Tokyo University of Agriculture and Technology
- Tokyo 184-8588
- Japan
| | - Masafumi Hirano
- Department of Applied Chemistry
- Tokyo University of Agriculture and Technology
- Tokyo 184-8588
- Japan
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10
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Lee Z, Jones BR, Nkengbeza N, Phillips M, Valentine K, Stewart A, Sellers B, Shuber N, Aiken KS. Iodine-mediated hydration of alkynes on keto-functionalized scaffolds: mechanistic insight and the regiospecific hydration of internal alkynes. Beilstein J Org Chem 2019; 15:2747-2752. [PMID: 31807207 PMCID: PMC6880791 DOI: 10.3762/bjoc.15.265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/04/2019] [Indexed: 11/23/2022] Open
Abstract
An iodine-mediated hydration reaction of alkynes serves as a green alternative to metal-catalyzed procedures. Previous work has shown that this method works well with terminal alkynes on keto-functionalized scaffolds, including 1,3-dicarbonyls and their heteroatom analogues. It was hypothesized that the reaction proceeds through a 5-exo-dig neighboring group participation (NGP) cyclization and an α-iodo intermediate. The work described herein probes the existence of the intermediate through NMR investigations and explores the scope of the hydration process with internal alkynes. The NMR experiments confirm the existence of the α-iodo intermediate, and methodology studies demonstrate that alkyl-capped, asymmetric, internal alkynes undergo a regiospecific hydration, also via the 5-exo-dig NGP pathway.
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Affiliation(s)
- Zachary Lee
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Brandon R Jones
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Nyochembeng Nkengbeza
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Michael Phillips
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Kayla Valentine
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Alexis Stewart
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Brandon Sellers
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Nicholas Shuber
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
| | - Karelle S Aiken
- Chemistry & Biochemistry, Georgia Southern University, PO Box 8064, Statesboro, GA 30460, USA
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11
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Schreyer M, Milzarek TM, Wegmann M, Brunner A, Hintermann L. Discovery and Comparison of Homogeneous Catalysts in a Standardized HOT‐CAT Screen with Microwave‐Heating and qNMR Analysis: Exploring Catalytic Hydration of Alkynes. ChemCatChem 2019. [DOI: 10.1002/cctc.201900456] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Matthias Schreyer
- Technische Universität MünchenDepartment Chemie Lichtenbergstr. 4 Garching bei München 85748 Germany
- TUM Catalysis Research Center Ernst-Otto-Fischer-Str. 1 Garching bei München 85748 Germany
| | - Tobias M. Milzarek
- Technische Universität MünchenDepartment Chemie Lichtenbergstr. 4 Garching bei München 85748 Germany
| | - Marcus Wegmann
- Technische Universität MünchenDepartment Chemie Lichtenbergstr. 4 Garching bei München 85748 Germany
- TUM Catalysis Research Center Ernst-Otto-Fischer-Str. 1 Garching bei München 85748 Germany
| | - Andreas Brunner
- Technische Universität MünchenDepartment Chemie Lichtenbergstr. 4 Garching bei München 85748 Germany
| | - Lukas Hintermann
- Technische Universität MünchenDepartment Chemie Lichtenbergstr. 4 Garching bei München 85748 Germany
- TUM Catalysis Research Center Ernst-Otto-Fischer-Str. 1 Garching bei München 85748 Germany
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12
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Affiliation(s)
- Giulia Oss
- School of Chemistry University of New South Wales Sydney Australia
| | - Junming Ho
- School of Chemistry University of New South Wales Sydney Australia
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