1
|
Bao M, Łuczak K, Chaładaj W, Baird M, Gryko D, Doyle MP. Photo-cycloaddition reactions of vinyldiazo compounds. Nat Commun 2024; 15:4574. [PMID: 38811537 PMCID: PMC11137122 DOI: 10.1038/s41467-024-48274-5] [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: 10/18/2023] [Accepted: 04/26/2024] [Indexed: 05/31/2024] Open
Abstract
Heterocyclic rings are important structural scaffolds encountered in both natural and synthetic compounds, and their biological activity often depends on these motifs. They are predominantly accessible via cycloaddition reactions, realized by either thermal, photochemical, or catalytic means. Various starting materials are utilized for this purpose, and, among them, diazo compounds are often encountered, especially vinyldiazo compounds that give access to donor-acceptor cyclopropenes which engage in [2+n] cycloaddition reactions. Herein, we describe the development of photochemical processes that produce diverse heterocyclic scaffolds from multisubstituted oximidovinyldiazo compounds. High chemoselectivity, good functional group tolerance, and excellent scalability characterize this methodology, thus predisposing it for broader applications. Experimental and computational studies reveal that under light irradiation these diazo reagents selectively transform into cyclopropenes which engage in cycloaddition reactions with various dipoles, while under thermal conditions the formation of pyrazole from vinyldiazo compounds is favored.
Collapse
Affiliation(s)
- Ming Bao
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas, USA
| | - Klaudia Łuczak
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, Poland
| | - Wojciech Chaładaj
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, Poland.
| | - Marriah Baird
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas, USA
| | - Dorota Gryko
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, Poland.
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas, USA.
| |
Collapse
|
2
|
Gu W, Huang J, Lu Y, Lin W, Xu W, Chen FJ. Synthesis of Glycoconjugates through Chlorooxime-Thiol Conjugation. J Org Chem 2024; 89:6364-6370. [PMID: 38650458 DOI: 10.1021/acs.joc.4c00356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Introducing glycans represents an efficient chemical approach to improve the pharmacological properties of therapeutic biomolecules. Herein, we report an efficient synthesis of glycoconjugates through chlorooxime-thiol conjugation. The reactive glycosyl chlorooximes, derived from pyranoses or furanoses, readily couple to a wide range of thiol-containing substrates, including peptides, sugars, and thiophenols. This method features mild reaction conditions and fast kinetics. Capability for aqueous media and gram-scale synthesis demonstrates the potential of this method in the bioconjugation of saccharides with biologically active molecules.
Collapse
Affiliation(s)
- Wang Gu
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian, P. R. China
| | - Jingrong Huang
- College of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Yichi Lu
- College of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Wanzhen Lin
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian, P. R. China
| | - Wei Xu
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian, P. R. China
| | - Fa-Jie Chen
- College of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| |
Collapse
|
3
|
Application of click chemistry in the synthesis of bidentate ligands and their metal complexes. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
4
|
Swain M, Bunnell TB, Kim J, Kwon O. Dealkenylative Alkynylation Using Catalytic Fe II and Vitamin C. J Am Chem Soc 2022; 144:14828-14837. [PMID: 35929075 PMCID: PMC9731399 DOI: 10.1021/jacs.2c05980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper, we report the synthesis of alkyl-tethered alkynes through ozone-mediated and FeII-catalyzed dealkenylative alkynylation of unactivated alkenes in the presence of alkynyl sulfones. This one-pot reaction, which employs a combination of a catalytic FeII salt and l-ascorbic acid, proceeds under mild conditions with good efficiency, high stereoselectivity, and broad functional group compatibility. In contrast to our previous FeII-mediated reductive fragmentation of α-methoxyhydroperoxides, the FeII-catalyzed process was devised through a thorough kinetic analysis of the multiple competing radical (redox) pathways. We highlight the potential of this dealkenylative alkynylation through multiple post-synthetic transformations and late-stage diversifications of complex molecules, including natural products and pharmaceuticals.
Collapse
Affiliation(s)
- Manisha Swain
- Department of Chemistry and Biochemistry, University of California─Los Angeles, Los Angeles, California 90095-1569, United States
| | - Thomas B Bunnell
- Department of Chemistry and Biochemistry, University of California─Los Angeles, Los Angeles, California 90095-1569, United States
| | - Jacob Kim
- Department of Chemistry and Biochemistry, University of California─Los Angeles, Los Angeles, California 90095-1569, United States
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California─Los Angeles, Los Angeles, California 90095-1569, United States
| |
Collapse
|
5
|
La Barbera L, Mauri E, D’Amelio M, Gori M. Functionalization strategies of polymeric nanoparticles for drug delivery in Alzheimer’s disease: Current trends and future perspectives. Front Neurosci 2022; 16:939855. [PMID: 35992936 PMCID: PMC9387393 DOI: 10.3389/fnins.2022.939855] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/11/2022] [Indexed: 12/12/2022] Open
Abstract
Alzheimer’s disease (AD), the most common form of dementia, is a progressive and multifactorial neurodegenerative disorder whose primary causes are mostly unknown. Due to the increase in life expectancy of world population, including developing countries, AD, whose incidence rises dramatically with age, is at the forefront among neurodegenerative diseases. Moreover, a definitive cure is not yet within reach, imposing substantial medical and public health burdens at every latitude. Therefore, the effort to devise novel and effective therapeutic strategies is still of paramount importance. Genetic, functional, structural and biochemical studies all indicate that new and efficacious drug delivery strategies interfere at different levels with various cellular and molecular targets. Over the last few decades, therapeutic development of nanomedicine at preclinical stage has shown to progress at a fast pace, thus paving the way for its potential impact on human health in improving prevention, diagnosis, and treatment of age-related neurodegenerative disorders, including AD. Clinical translation of nano-based therapeutics, despite current limitations, may present important advantages and innovation to be exploited in the neuroscience field as well. In this state-of-the-art review article, we present the most promising applications of polymeric nanoparticle-mediated drug delivery for bypassing the blood-brain barrier of AD preclinical models and boost pharmacological safety and efficacy. In particular, novel strategic chemical functionalization of polymeric nanocarriers that could be successfully employed for treating AD are thoroughly described. Emphasis is also placed on nanotheranostics as both potential therapeutic and diagnostic tool for targeted treatments. Our review highlights the emerging role of nanomedicine in the management of AD, providing the readers with an overview of the nanostrategies currently available to develop future therapeutic applications against this chronic neurodegenerative disease.
Collapse
Affiliation(s)
- Livia La Barbera
- Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
- Santa Lucia Foundation, IRCSS, Rome, Italy
| | - Emanuele Mauri
- Department of Engineering, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Marcello D’Amelio
- Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
- Santa Lucia Foundation, IRCSS, Rome, Italy
| | - Manuele Gori
- Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
- Institute of Biochemistry and Cell Biology (IBBC) - National Research Council (CNR), Rome, Italy
- *Correspondence: Manuele Gori,
| |
Collapse
|
6
|
Chilaka SK, Chellu RK, Soda AK, Kurva S, Nanubolu JB, Madabhushi S. Base‐Catalyzed Domino Reaction Between Aldoxime and <i>N</i>‐Chlorosuccinimide in Alcohol: One‐Pot Synthesis of Alkyl 3‐(3‐Aryl‐1,2,4‐oxadiazol‐5‐yl)propanoates. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
7
|
Doubly stereoconvergent construction of vicinal all-carbon quaternary and tertiary stereocenters by Cu/Mg-catalyzed propargylic substitution. Nat Commun 2022; 13:2457. [PMID: 35508476 PMCID: PMC9068607 DOI: 10.1038/s41467-022-29986-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 04/06/2022] [Indexed: 02/05/2023] Open
Abstract
The construction of vicinal, congested stereocenters with high selectivities is of general utility in chemistry. To build two such stereocenters in one step from readily available starting materials is very desirable, but remains challenging. We report here a doubly stereoconvergent, Cu/Mg-catalyzed asymmetric propargylic substitution reaction to convert simple starting materials to products with vicinal tertiary and all-carbon quaternary stereocenters in high yields and excellent diastereo- and enantioselectivities. Both the nucleophiles and the electrophiles employed in this transformation are racemic. This reaction uses earth abundant metal catalysts, operates under ambient conditions, and demonstrates broad substrate scope. The products of this reaction are functional group rich and synthetically versatile. Key to the success of this development is the devise of a Cu/Mg dual catalytic system and the identification of a bulky tridentate pyridinebisimidazoline (PyBim) ligand. The construction of vicinal, congested stereocenters with high selectivities is of general utility in chemistry. Here the authors report a doubly-stereoconvergent, Cu/Mg-catalyzed asymmetric propargylic substitution reaction to convert simple starting materials to products with vicinal tertiary and all-carbon quaternary stereocenters in high yields and excellent diastereo- and enantioselectivities
Collapse
|
8
|
Chen FJ, Zheng M, Nobile V, Gao J. Fast and Cysteine-Specific Modification of Peptides, Proteins and Bacteriophage Using Chlorooximes. Chemistry 2022; 28:e202200058. [PMID: 35167137 PMCID: PMC8986619 DOI: 10.1002/chem.202200058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 12/21/2022]
Abstract
This work reports a novel chlorooxime mediated modification of native peptides and proteins under physiologic conditions. This method features fast reaction kinetics (apparent k2 =306±4 M-1 s-1 for GSH) and exquisite selectivity for cysteine residues. This cysteine conjugation reaction can be carried out with just single-digit micromolar concentrations of the labeling reagent. The conjugates show high stability towards acid, base, and external thiol nucleophiles. A nitrile oxide species generated in situ is likely involved as the key intermediate. Furthermore, a bis-chlorooxime reagent is synthesized to enable facile Cys-Cys stapling in native peptides and proteins. This highly efficient cysteine conjugation and stapling was further implemented on bacteriophage to construct chemically modified phage libraries.
Collapse
Affiliation(s)
- Fa-Jie Chen
- Department of Chemistry Boston College, Merkert Chemistry Center, 2609 Beacon Street, Chestnut Hill, MA 02467, USA
| | - Mengmeng Zheng
- Department of Chemistry Boston College, Merkert Chemistry Center, 2609 Beacon Street, Chestnut Hill, MA 02467, USA
| | - Vincent Nobile
- Department of Chemistry Boston College, Merkert Chemistry Center, 2609 Beacon Street, Chestnut Hill, MA 02467, USA
| | - Jianmin Gao
- Department of Chemistry Boston College, Merkert Chemistry Center, 2609 Beacon Street, Chestnut Hill, MA 02467, USA
| |
Collapse
|
9
|
Jiang P, Wang Y, Chen D, Zheng Y, Huang S. Synthesis of 3‐Acyl‐Isoxazoles
via
Radical 5‐
endo trig
Cyclization of β,γ‐Unsaturated Ketones with NaNO
2. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ping Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| | - Yaming Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| | - Dengfeng Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| | - Yu Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials Nanjing Forestry University Nanjing 210037 China
| |
Collapse
|
10
|
Mondal S, Biswas S, Ghosh KG, Sureshkumar D. TEMPO-Mediated Selective Synthesis of Isoxazolines, 5-Hydroxy-2-isoxazolines, and Isoxazoles via Aliphatic δ-C(sp3)-H Bond Oxidation of Oximes. Chem Asian J 2021; 16:2439-2446. [PMID: 34190407 DOI: 10.1002/asia.202100572] [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: 05/27/2021] [Revised: 06/20/2021] [Indexed: 12/20/2022]
Abstract
Selective synthesis of three different bioactive heterocycles; isoxazolines, 5-hydroxy-2-isoxazolines and isoxazoles from the same starting material using TEMPO (2,2,6,6-Tetramethylpiperidin-1-oxyl) as a radical initiator is reported. Selectivity was achieved using different oxidants with TEMPO. The reaction goes through a 1,5-HAT (hydrogen atom transfer) process resulting in products with good yields. This strategy offers a straightforward route to three different heterocycles from oximes via radical-mediated C(sp3 )-H oxidation.
Collapse
Affiliation(s)
- Santanu Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India.,Okinawa Institute of Science and Technology Graduate University (OIST), Okinawa, Japan
| | - Sourabh Biswas
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| | - Krishna Gopal Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| | - Devarajulu Sureshkumar
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India
| |
Collapse
|
11
|
Click chemistry strategies for the accelerated synthesis of functional macromolecules. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210126] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
12
|
Feng Q, Huang H, Sun J. Ru-Catalyzed [3 + 2] Cycloaddition of Nitrile Oxides and Electron-Rich Alkynes with Reversed Regioselectivity. Org Lett 2021; 23:2431-2436. [PMID: 33750136 DOI: 10.1021/acs.orglett.1c00273] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Polarity reversal ("umpolung") of a functional group can override its inherent reactivity and lead to distinct bond-forming modes. Herein we describe a rarely studied cycloaddition between nitrile oxides and electron-rich alkynes with reversed regioselectivity, leading to the useful 4-heterosubstituted isoxazoles. The use of a ruthenium catalyst completely overrides the inherent polarity of nitrile oxides. This reversed regioselectivity was also observed for their reactions with a range of electron-deficient alkynes.
Collapse
Affiliation(s)
- Qiang Feng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| |
Collapse
|
13
|
Cheawchan S, Sogawa H, Takata T. Phototriggered Crosslinking and Surface Modification via Catalyst‐Free Functionalization of a New Orthogonal Agent Containing Nitrile
N
‐Oxide and
o
‐Nitrobenzyl Ether Moieties. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202000459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sumitra Cheawchan
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2‐12‐1, Ookayama Meguro Tokyo 152–8552 Japan
| | - Hiromitsu Sogawa
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2‐12‐1, Ookayama Meguro Tokyo 152–8552 Japan
- Department of Chemistry and Materials Engineering Faculty of Chemistry Materials and Bioengineering Kansai University Suita Osaka 564–8680 Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2‐12‐1, Ookayama Meguro Tokyo 152–8552 Japan
- Graduate School of Advanced Science and Engineering Hiroshima University Kagamiyama Higashi‐Hiroshima Hiroshima 739–8527 Japan
| |
Collapse
|
14
|
Plumet J. 1,3-Dipolar Cycloaddition Reactions of Nitrile Oxides under "Non-Conventional" Conditions: Green Solvents, Irradiation, and Continuous Flow. Chempluschem 2021; 85:2252-2271. [PMID: 33044044 DOI: 10.1002/cplu.202000448] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 08/11/2020] [Indexed: 01/15/2023]
Abstract
The 1,3-dipolar cycloaddition reactions (DCs) of nitrile oxides (NOs) to alkenes and alkynes are useful methods for the synthesis of 2-isoxazolines and isoxazoles respectively, which are important classes of heterocyclic compounds in organic and medicinal chemistry. Most of these reactions are carried out in organic solvents and under thermal activation. Nevertheless the use of supercritical carbon dioxide (scCO2 ) and ionic liquids (Ils) as alternative solvents and the application of microwave (MW) and ultrasound (US) as alternative activation procedures have evident advantages from the "Green Chemistry" point of view. The critical discussion on the applications of these "unconventional" activation methods and reaction conditions in the 1,3-DCs of NOs is the objective of the present Review.
Collapse
Affiliation(s)
- Joaquín Plumet
- Department of Organic Chemistry. Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040, Madrid, Spain
| |
Collapse
|
15
|
Kandula V, Bandaru SK, Balakrishna C, Chatterjee A, Yennam S, Saunders GC, Behera M. Synthesis of 3,4,5‐Trisubstituted Isoxazoles via the ANRORC Rearrangement. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Venu Kandula
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
- Department of chemistry Koneru Lakshmaiah education foundation 522502 Andra Pradesh Vaddeswaram Guntur India
| | | | - C. Balakrishna
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
| | - Anindita Chatterjee
- Department of chemistry Koneru Lakshmaiah education foundation 522502 Andra Pradesh Vaddeswaram Guntur India
- Department of Chemistry Raghu Engineering college Visakhapatnam Andra Pradesh 530048 India
| | - Satyanarayana Yennam
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
| | | | - Manoranjan Behera
- GVK Biosciences Pvt. Ltd.Survey Nos: 125 (part) & 126 Chemistry Services 500076 Telangana Hyderabad India
| |
Collapse
|
16
|
De Palo A, Zacchini S, Pampaloni G, Marchetti F. Construction of a Functionalized Selenophene‐Allylidene Ligand via Alkyne Double Action at a Diiron Complex. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000371] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Alice De Palo
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Industriale “Toso Montanari” Università di Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Guido Pampaloni
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via G. Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
17
|
Affiliation(s)
- Alessandro Ponti
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC) Consiglio Nazionale delle Ricerche via G. Fantoli 16/15 20138 Milan Italy
| | - Giorgio Molteni
- Dipartimento di Chimica Università degli Studi di Milano via Golgi 19 20133 Milan Italy
| |
Collapse
|
18
|
|
19
|
Sowdari J, Thata S, Gudi Y, Venkatapuram P, Adivireddy P. Synthesis of amide‐linked benzazolyl isoxazoles adopting green methods and evaluation as antimicrobials. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jyothi Sowdari
- Department of ChemistrySri Venkateswara University Tirupati Andhra Pradesh India
| | - Sreenivasulu Thata
- Department of ChemistrySri Venkateswara University Tirupati Andhra Pradesh India
| | - Yamini Gudi
- Department of ChemistrySri Venkateswara University Tirupati Andhra Pradesh India
| | | | - Padmaja Adivireddy
- Department of ChemistrySri Venkateswara University Tirupati Andhra Pradesh India
| |
Collapse
|
20
|
Zhang L, Mao XC, Wang QY, Pan Y, Chen JM. Polystyrene-supported 2-bromoallyl sulfone as an efficient reagent for synthesis of 3,5-disubstituted isoxazoles. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2019.1655420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Liang Zhang
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University , Nanchang , China
| | - Xue-Chun Mao
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University , Nanchang , China
| | - Qiu-Ying Wang
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University , Nanchang , China
| | - Yang Pan
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University , Nanchang , China
| | - Jun-Min Chen
- Key Laboratory of Functional Small Organic Molecule of Ministry of Education, Jiangxi Normal University , Nanchang , China
| |
Collapse
|
21
|
O'Sullivan J, Colleran J, Twamley B, Heaney F. Highly Selective Fluorimetric Turn-Off Detection of Copper(II) by Two Different Mechanisms in Calix[4]arene-Based Chemosensors and Chemodosimeters. Chempluschem 2020; 84:1610-1622. [PMID: 31943920 DOI: 10.1002/cplu.201900448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/09/2019] [Indexed: 01/01/2023]
Abstract
Isoxazolo-pyrene tethered calix[4]arenes selectively detect copper(II) ions without interference from related perchlorate ions. The fluorescence emission of the probes, synthesised by nitrile oxide alkyne cycloaddition, and characterised by spectroscopic and crystallographic data, is rapidly reduced by Cu(II) ions. Detection limits are in the micromolar or sub-micromolar range (0.3-3.6 μM) based on a 1 : 1 sensor:analyte interaction. Voltammetric behaviour and 1 H NMR data provide new insights into the sensing mechanism which is dependent on the calixarene substitution pattern. When the calixarene lower rim is fully substituted, Cu(II) detection occurs through a traditional chelation mechanism. In contrast, for calixarenes 1,3-disubstituted on the lower rim, detection takes place through a chemodosimetric redox reaction. The isolation of a calix[4]diquinone from the reaction with excess Cu(ClO4 )2 provides confirmation that the sensor-analyte interaction culminates in irreversible sensor oxidation.
Collapse
Affiliation(s)
- Justine O'Sullivan
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, W23 F2H6, Ireland
| | - John Colleran
- School of Chemical & Pharmaceutical Sciences, and Applied Electrochemistry Group Focas Institute, Camden Row, Technical University Dublin, Kevin Street, Dublin 8, D08 NF82, Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity College Dublin, University of Dublin, Dublin 2, Ireland
| | - Frances Heaney
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, W23 F2H6, Ireland
| |
Collapse
|
22
|
Li J, Lin Z, Wu W, Jiang H. Recent advances in metal catalyzed or mediated cyclization/functionalization of alkynes to construct isoxazoles. Org Chem Front 2020. [DOI: 10.1039/d0qo00609b] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarized the recent developments in metal catalyzed or mediated cyclization/functionalization of alkynes to construct isoxazoles.
Collapse
Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Zidong Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| |
Collapse
|
23
|
Ou Z, Huang Q, Kou Y, Cheng F, Kalita SJ, Zhao Z, Huang Y. 1,3‐Dipolar Cycloadditions of β‐Fluoroalkyl Vinylsulfones and Nitrile Oxides for Fluoroalkylated Isoxazolines and Isoxazoles. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Zhi Ou
- Department of Chemistry School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology Wuhan 430070 China
| | - Qian Huang
- Department of Chemistry School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology Wuhan 430070 China
| | - Ying‐Da Kou
- Department of Chemistry School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology Wuhan 430070 China
| | - Feng Cheng
- Department of Chemistry School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology Wuhan 430070 China
| | - Subarna Jyoti Kalita
- Department of Chemistry School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology Wuhan 430070 China
| | - Zhen‐Ni Zhao
- Department of Chemistry School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology Wuhan 430070 China
| | - Yi‐Yong Huang
- Department of Chemistry School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology Wuhan 430070 China
| |
Collapse
|
24
|
Schäfer RJB, Monaco MR, Li M, Tirla A, Rivera-Fuentes P, Wennemers H. The Bioorthogonal Isonitrile–Chlorooxime Ligation. J Am Chem Soc 2019; 141:18644-18648. [DOI: 10.1021/jacs.9b07632] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rebecca J. B. Schäfer
- Laboratory of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, Zurich 8093, Switzerland
| | - Mattia R. Monaco
- Laboratory of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, Zurich 8093, Switzerland
| | - Mao Li
- Laboratory of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, Zurich 8093, Switzerland
| | - Alina Tirla
- Laboratory of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, Zurich 8093, Switzerland
| | - Pablo Rivera-Fuentes
- Laboratory of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, Zurich 8093, Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry, ETH Zurich, D-CHAB, Vladimir-Prelog-Weg 3, Zurich 8093, Switzerland
| |
Collapse
|
25
|
Zhang XL, Wei MH, Chen JM, Liu XL. One-pot synthesis of novel ether-linked diisoxazole derivatives via sequential O-propargylation and 1,3-dipolar cycloaddition from 2-bromohomoallylic alcohols. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1684522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Xiao-Lan Zhang
- College of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao, P. R. China
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| | - Mei-Hong Wei
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| | - Jun-Min Chen
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| | - Xiao-Ling Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| |
Collapse
|
26
|
Kamal R, Kumar R, Kumar V, Bhardwaj V. Synthetic Utilization of α,β‐Chalcone Dibromide In Heterocyclic Chemistry and Stereoselective Debromination. ChemistrySelect 2019. [DOI: 10.1002/slct.201902262] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Raj Kamal
- Department of ChemistryKurukshetra University Kurukshetra Haryana India- 136119
| | - Ravinder Kumar
- Department of ChemistryKurukshetra University Kurukshetra Haryana India- 136119
| | - Vipan Kumar
- Department of ChemistryKurukshetra University Kurukshetra Haryana India- 136119
| | - Vikas Bhardwaj
- Department of ChemistrySeth Jai Parkash Mukad Lal Institute of Engineering and Technology Radaur. Yamunanagar Haryana 135133 India
| |
Collapse
|
27
|
Moiola M, Memeo MG, Quadrelli P. Stapled Peptides-A Useful Improvement for Peptide-Based Drugs. Molecules 2019; 24:molecules24203654. [PMID: 31658723 PMCID: PMC6832507 DOI: 10.3390/molecules24203654] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/24/2019] [Accepted: 10/01/2019] [Indexed: 12/24/2022] Open
Abstract
Peptide-based drugs, despite being relegated as niche pharmaceuticals for years, are now capturing more and more attention from the scientific community. The main problem for these kinds of pharmacological compounds was the low degree of cellular uptake, which relegates the application of peptide-drugs to extracellular targets. In recent years, many new techniques have been developed in order to bypass the intrinsic problem of this kind of pharmaceuticals. One of these features is the use of stapled peptides. Stapled peptides consist of peptide chains that bring an external brace that force the peptide structure into an α-helical one. The cross-link is obtained by the linkage of the side chains of opportune-modified amino acids posed at the right distance inside the peptide chain. In this account, we report the main stapling methodologies currently employed or under development and the synthetic pathways involved in the amino acid modifications. Moreover, we report the results of two comparative studies upon different kinds of stapled-peptides, evaluating the properties given from each typology of staple to the target peptide and discussing the best choices for the use of this feature in peptide-drug synthesis.
Collapse
Affiliation(s)
- Mattia Moiola
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - Misal G Memeo
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - Paolo Quadrelli
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| |
Collapse
|
28
|
Zhang K, Jelier B, Passera A, Jeschke G, Katayev D. Synthetic Diversity from a Versatile and Radical Nitrating Reagent. Chemistry 2019; 25:12929-12939. [PMID: 31267574 DOI: 10.1002/chem.201902966] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Indexed: 12/14/2022]
Abstract
We leverage the slow liberation of nitrogen dioxide from a newly discovered, inexpensive succinimide-derived reagent to allow for the C-H diversification of alkenes and alkynes. Beyond furnishing a library of aryl β-nitroalkenes, this reagent provides unparalleled access to β-nitrohydrins and β-nitroethers. Detailed mechanistic studies strongly suggest that a mesolytic N-N bond fragmentation liberates a nitryl radical. Using in situ photo-sensitized, electron paramagnetic resonance spectroscopy, we observed direct evidence of a nitryl radical in solution by nitrone spin-trapping. To further exhibit versatility of N-nitrosuccinimide under photoredox conditions, the late-stage diversification of an extensive number of C-H partners to prepare isoxazolines and isoxazoles is presented. This approach allows for the formation of an in situ nitrile oxide from a ketone partner, the presence of which is detected by the formation of the corresponding furoxan when conducted in the absence of a dipolarophile. This 1,3-dipolar cycloaddition with nitrile oxides and alkenes or alkynes proceeds in a single-operational step using a mild, regioselective, and general protocol with broad chemoselectivity.
Collapse
Affiliation(s)
- Kun Zhang
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Benson Jelier
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Alessandro Passera
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Gunnar Jeschke
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Dmitry Katayev
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| |
Collapse
|
29
|
Carloni LE, Mohnani S, Bonifazi D. Synthesis of 3,5-Disubstituted Isoxazoles through a 1,3-Dipolar Cycloaddition Reaction between Alkynes and Nitrile Oxides Generated from O
-Silylated Hydroxamic Acids. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Laure-Elie Carloni
- Department of Chemistry and Namur Research College (NARC); University of Namur; Rue de Bruxelles 61 5000 Namur Belgium
| | - Stefan Mohnani
- Department of Chemistry and Namur Research College (NARC); University of Namur; Rue de Bruxelles 61 5000 Namur Belgium
| | - Davide Bonifazi
- School of Chemistry, Park Place, Main Building, CF10 3AT; Cardiff University; Cardiff Wales UK
| |
Collapse
|
30
|
Chen C, Cui S. Iterative Assembly of Nitrile Oxides and Ynamides: Synthesis of Isoxazoles and Pyrroles. J Org Chem 2019; 84:12157-12164. [DOI: 10.1021/acs.joc.9b01430] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Changwei Chen
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
31
|
Zhang XL, Wei MH, Sheng SR, Liu XL. One-pot synthesis of novel N,N-bis(isoxazol-5-yl)methyl tertiary arylamines via sequential diprop-3-ynylation and 1,3-dipolar cycloaddition from primary amines. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819868203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A simple and efficient one-pot multicomponent approach for the synthesis of tertiary arylamines bearing N,N-bis(isoxazol-5-yl)methyl groups is developed through reactions including sequential diprop-3-ynylation of primary amines with propargyl bromide in the presence of calcium hydride in N,N-dimethylformamide, and 1,3-dipolar cycloaddition with nitrile oxides generated in situ from hydroximyl chlorides in DMF-Et3N. This protocol provides advantages such as high regioselectivity, easy operation, and moderate-to-good product yields with a wide substrate scope under mild conditions.
Collapse
Affiliation(s)
- Xiao-Lan Zhang
- College of Chemistry and Chemical Engineering, Shangrao Normal University, Shangrao, P. R. China
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| | - Mei-Hong Wei
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| | - Shou-Ri Sheng
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| | - Xiao-Ling Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, P. R. China
| |
Collapse
|
32
|
Zatsikha YV, Didukh NO, Swedin RK, Yakubovskyi VP, Blesener TS, Healy AT, Herbert DE, Blank DA, Nemykin VN, Kovtun YP. Preparation of Viscosity-Sensitive Isoxazoline/Isoxazolyl-Based Molecular Rotors and Directly Linked BODIPY–Fulleroisoxazoline from the Stable meso-(Nitrile Oxide)-Substituted BODIPY. Org Lett 2019; 21:5713-5718. [DOI: 10.1021/acs.orglett.9b02082] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuriy V. Zatsikha
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Natalia O. Didukh
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., 02660 Kyiv, Ukraine
| | - Rachel K. Swedin
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Viktor P. Yakubovskyi
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., 02660 Kyiv, Ukraine
| | - Tanner S. Blesener
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Andrew T. Healy
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - David E. Herbert
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - David A. Blank
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Victor N. Nemykin
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Yuriy P. Kovtun
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska str., 02660 Kyiv, Ukraine
| |
Collapse
|
33
|
Bruyat P, Jean L, Renard PY. Regioselective Solid-Phase Synthesis of Peptide Analogues Containing 3,4- or 3,5-Disubstituted Isoxazole as s-cis
or s-trans
Peptide Bond Mimics. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Pierrick Bruyat
- Normandie Univ; UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), IRCOF; 1 Rue Tesnières 76821 Mont-Saint-Aignan Cedex France
| | - Ludovic Jean
- Normandie Univ; UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), IRCOF; 1 Rue Tesnières 76821 Mont-Saint-Aignan Cedex France
| | - Pierre-Yves Renard
- Normandie Univ; UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), IRCOF; 1 Rue Tesnières 76821 Mont-Saint-Aignan Cedex France
| |
Collapse
|
34
|
Cai J, Bai H, Wang Y, Xu X, Xie H, Liu J. Base-mediated regioselective [3+2] annulation of ketenimines and isocyanides: efficient synthesis of 1,4,5-trisubstituted imidazoles. Chem Commun (Camb) 2019; 55:3821-3824. [DOI: 10.1039/c9cc01257e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A novel base-mediated regioselective [3+2] annulation of active methylene isocyanides with ketenimines has been developed.
Collapse
Affiliation(s)
- Jinxiong Cai
- National & Local United Engineering Laboratory for Power Battery
- Department of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Haijie Bai
- National & Local United Engineering Laboratory for Power Battery
- Department of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yuan Wang
- National & Local United Engineering Laboratory for Power Battery
- Department of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Xianxiu Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Haiming Xie
- National & Local United Engineering Laboratory for Power Battery
- Department of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Jun Liu
- National & Local United Engineering Laboratory for Power Battery
- Department of Chemistry
- Northeast Normal University
- Changchun
- China
| |
Collapse
|
35
|
Zhao G, Liang L, Wen CHE, Tong R. In Situ Generation of Nitrile Oxides from NaCl-Oxone Oxidation of Various Aldoximes and Their 1,3-Dipolar Cycloaddition. Org Lett 2018; 21:315-319. [PMID: 30576159 DOI: 10.1021/acs.orglett.8b03829] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reported is a new green protocol for the efficient in situ generation of nitrile oxides through NaCl/Oxone oxidation of aldoximes and their dipolar cycloaddition. The key feature is the use of a green chemistry approach to address the substrate scope of aldoximes: broad scope (aliphatic, aromatic, and alkenyl aldoximes) without production of organic byproducts derived from oxidant and/or catalyst. Importantly, NaCl/Oxone-promoted three-component cycloaddition of aldehyde, hydroxylamine hydrochloride, and alkene was demonstrated to be competent (63-81%).
Collapse
Affiliation(s)
- Guodong Zhao
- Department of Chemistry , The Hong Kong University of Science and Technology , Clearwater Bay, Kowloon , Hong Kong China
| | - Lixin Liang
- Department of Chemistry , The Hong Kong University of Science and Technology , Clearwater Bay, Kowloon , Hong Kong China
| | - Chi Ho Ethan Wen
- Department of Chemistry , The Hong Kong University of Science and Technology , Clearwater Bay, Kowloon , Hong Kong China
| | - Rongbiao Tong
- Department of Chemistry , The Hong Kong University of Science and Technology , Clearwater Bay, Kowloon , Hong Kong China.,HKUST Shenzhen Research Institute , Shenzhen 518057 , China
| |
Collapse
|
36
|
Zhu B, Li F, Lu B, Chang J, Jiang Z. Organocatalytic Enantioselective Vinylogous Aldol Reaction of 5-Alkyl-4-Nitroisoxazoles to Paraformaldehyde. J Org Chem 2018; 83:11350-11358. [DOI: 10.1021/acs.joc.8b01573] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Bo Zhu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Fuyuan Li
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Bohua Lu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Zhiyong Jiang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan 475004, P. R. China
| |
Collapse
|
37
|
Base-promoted 1,3-dipolar cycloaddition reaction of nitrile oxides with methyl 1,4-dioxo-1,4-dihydronaphthalene-2-carboxylate for the construction of naphtho[2,3- d ]isoxazole-4,9(3a H ,9a H )-diones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
38
|
Subramanian P, Kaliappan KP. Transition-Metal-Free Multicomponent Approach to Stereoenriched Cyclopentyl-isoxazoles through C-C Bond Cleavage. Chem Asian J 2018; 13:2031-2039. [PMID: 29920954 DOI: 10.1002/asia.201800608] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/11/2018] [Indexed: 01/01/2023]
Abstract
An efficient multicomponent reaction for the synthesis of stereoenriched cyclopentyl-isoxazoles from camphor-derived α-oximes, alkynes, and MeOH is reported. Our method involved a series of cascade transformations, including the in situ generation of an IIII catalyst, which catalyzed the addition of MeOH to a sterically hindered ketone. Oxidation of the oxime, and rearrangement of the α-hydroxyiminium ion generated a nitrile oxide in situ, which, upon [3+2] cycloaddition reaction with an alkyne, delivered the regioselective product. This reaction was very selective for the syn-oxime. This multicomponent approach was also extended to the synthesis of a new glycoconjugate, camphoric ester-isoxazole C-galactoside.
Collapse
Affiliation(s)
- Parthasarathi Subramanian
- Department of Chemistry, Indian Institute of Technology Bombay, Main Gate Road, Powai, Mumbai, 400076, India
| | - Krishna P Kaliappan
- Department of Chemistry, Indian Institute of Technology Bombay, Main Gate Road, Powai, Mumbai, 400076, India
| |
Collapse
|
39
|
Chen R, Ogunlana AA, Fang S, Long W, Sun H, Bao X, Wan X. In situ generation of nitrile oxides from copper carbene and tert-butyl nitrite: synthesis of fully substituted isoxazoles. Org Biomol Chem 2018; 16:4683-4687. [PMID: 29892743 DOI: 10.1039/c8ob01067f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, we present a novel [3 + 2] cycloaddition reaction of β-keto esters with nitrile oxides, which were generated in situ from copper carbene and tert-butyl nitrite. This three-component reaction provides new methodology for the direct synthesis of fully substituted isoxazole derivatives, featuring mild reaction conditions, readily accessible starting materials and simple operation. The experimental studies and DFT calculations suggest that the reaction starts with the generation of the key intermediate nitrile oxides, followed by a [3 + 2] cycloaddition reaction of β-keto esters to give the final isoxazole products.
Collapse
Affiliation(s)
- Rongxiang Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Abosede Adejoke Ogunlana
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Shangwen Fang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Wenhao Long
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Hongmei Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| |
Collapse
|
40
|
Palladium‐Catalyzed Cascade Cyclization/Alkynylation and Alkenylation of Alkynone
O
‐Methyloximes with Terminal Alkynes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800444] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
41
|
von Zons T, Brokmann L, Lippke J, Preuße T, Hülsmann M, Schaate A, Behrens P, Godt A. Postsynthetic Modification of Metal–Organic Frameworks through Nitrile Oxide–Alkyne Cycloaddition. Inorg Chem 2018; 57:3348-3359. [DOI: 10.1021/acs.inorgchem.8b00126] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tobias von Zons
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Luisa Brokmann
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Jann Lippke
- Institute of Inorganic Chemistry and ZFM-Center for Solid State Chemistry and New Materials, Leibniz University Hannover, Callinstraße 9, 30167 Hannover, Germany
| | - Thomas Preuße
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Miriam Hülsmann
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Andreas Schaate
- Institute of Inorganic Chemistry and ZFM-Center for Solid State Chemistry and New Materials, Leibniz University Hannover, Callinstraße 9, 30167 Hannover, Germany
| | - Peter Behrens
- Institute of Inorganic Chemistry and ZFM-Center for Solid State Chemistry and New Materials, Leibniz University Hannover, Callinstraße 9, 30167 Hannover, Germany
| | - Adelheid Godt
- Faculty of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| |
Collapse
|
42
|
Svejstrup TD, Zawodny W, Douglas JJ, Bidgeli D, Sheikh NS, Leonori D. Visible-light-mediated generation of nitrile oxides for the photoredox synthesis of isoxazolines and isoxazoles. Chem Commun (Camb) 2018; 52:12302-12305. [PMID: 27711298 DOI: 10.1039/c6cc06029c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible-light photoredox catalysis enables the synthesis of biologically relevant isoxazolines and isoxazoles from hydroxyimino acids. The process shows broad functional group compatibility and mechanistic and computational studies support a visible-light-mediated generation of nitrile oxides by two sequential oxidative single electron transfer processes.
Collapse
Affiliation(s)
- Thomas D Svejstrup
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Wojciech Zawodny
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - James J Douglas
- AstraZeneca, Silk Road Business Park, Macclesfield SK10 2NA, UK
| | - Damon Bidgeli
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Nadeem S Sheikh
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Daniele Leonori
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| |
Collapse
|
43
|
Zhu B, Lee R, Yin Y, Li F, Coote ML, Jiang Z. Enantioselective Vinylogous Amination of 5-Alkyl-4-nitroisoxazoles with a Dipeptide-Based Guanidinium Phase-Transfer Catalyst. Org Lett 2018; 20:429-432. [DOI: 10.1021/acs.orglett.7b03759] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Bo Zhu
- Key
Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan, 475004, P. R. China
- School
of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Richmond Lee
- ARC Centre of Excellence for Electromaterials Research & Research School of Chemistry, Australian National University, Canberra ACT, 2601, Australia
- Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Yanli Yin
- Key
Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Fuyuan Li
- Key
Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Michelle L. Coote
- ARC Centre of Excellence for Electromaterials Research & Research School of Chemistry, Australian National University, Canberra ACT, 2601, Australia
| | - Zhiyong Jiang
- Key
Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan, 475004, P. R. China
| |
Collapse
|
44
|
Ledovskaya MS, Rodygin KS, Ananikov VP. Calcium-mediated one-pot preparation of isoxazoles with deuterium incorporation. Org Chem Front 2018. [DOI: 10.1039/c7qo00705a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this work, a novel synthetic methodology for the one-pot preparation of isoxazoles directly from the reaction of calcium carbide with aldoximes is reported.
Collapse
Affiliation(s)
| | | | - Valentine P. Ananikov
- Saint Petersburg State University
- Peterhof
- Russia
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences
- Moscow
| |
Collapse
|
45
|
Silva RGM, da Silva MJV, Jacomini AP, Moura S, Back DF, Basso EA, Rosa FA. Development of methodologies for the regioselective synthesis of four series of regioisomer isoxazoles from β-enamino diketones. RSC Adv 2018; 8:4773-4778. [PMID: 35539545 PMCID: PMC9077875 DOI: 10.1039/c7ra13343j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 01/20/2018] [Indexed: 12/19/2022] Open
Abstract
Four methodologies are reported for the regioselective synthesis of four series of regioisomer isoxazoles from cyclocondensation of β-enamino diketones and hydroxylamine hydrochloride. Regiochemical control was achieved by varying reaction conditions and substrate structure. The mild reaction conditions used to access 4,5-disubstituted, 3,4-disubtituted, and 3,4,5-trisubstituted regioisomer isoxazoles, as well as the pharmacological and synthetic potential of the products, make these novel methodologies very powerful. Efficient and regioselective synthesis of isoxazoles was demonstrated through cyclocondensation of β-enamino diketones with hydroxylamine: four of the six possible regioisomers were obtained.![]()
Collapse
Affiliation(s)
- Raí G. M. Silva
- Departamento de Química
- Universidade Estadual de Maringá (UEM)
- Brazil
| | | | | | - Sidnei Moura
- Laboratório de Produtos Naturais e Sintéticos
- Instituto de Biotecnologia
- Universidade de Caxias do Sul (UCS)
- Caxias do Sul
- Brazil
| | - Davi F. Back
- Departamento de Química
- Universidade Federal de Santa Maria (UFSM)
- Santa Maria
- Brazil
| | - Ernani A. Basso
- Departamento de Química
- Universidade Estadual de Maringá (UEM)
- Brazil
| | - Fernanda A. Rosa
- Departamento de Química
- Universidade Estadual de Maringá (UEM)
- Brazil
| |
Collapse
|
46
|
Novel click modifiable thioquinazolinones as anti-inflammatory agents: Design, synthesis, biological evaluation and docking study. Eur J Med Chem 2018; 144:635-650. [DOI: 10.1016/j.ejmech.2017.12.065] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/02/2017] [Accepted: 12/17/2017] [Indexed: 11/19/2022]
|
47
|
Affiliation(s)
- Yanli Yin
- College of Bioengineering; Henan University of Technology; Zhengzhou Henan 450001 P.R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Kaifeng Henan 475004 P.R. China
| | - Zhiyong Jiang
- College of Bioengineering; Henan University of Technology; Zhengzhou Henan 450001 P.R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Kaifeng Henan 475004 P.R. China
| |
Collapse
|
48
|
Kim M, Hwang YS, Cho W, Park SB. Synthesis of 3,5-Disubstituted Isoxazoles Containing Privileged Substructures with a Diverse Display of Polar Surface Area. ACS COMBINATORIAL SCIENCE 2017; 19:407-413. [PMID: 28306232 DOI: 10.1021/acscombsci.7b00032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We designed and synthesized the molecular framework of 3,5-disubstituted isoxazoles containing privileged substructures with various substituents which uniquely display polar surface area in a diverse manner. A library of 3,5-disubstituted isoxazoles were systematically prepared via 1,3-dipolar cycloaddition of alkynes with nitrile oxides prepared by two complementary synthetic routes; method A utilized a halogenating agent with a base and method B utilized a hypervalent iodine reagent. Through the biological evaluation of corresponding isoxazoles via three independent phenotypic assays, the different pattern of biological activities was shown according to the type of privileged substructure and substituent. These results demonstrated the significance of molecular design via introducing privileged substructures and various substituents to make a diverse arrangement of polar surface area within a similar 3-dimensional molecular framework.
Collapse
Affiliation(s)
- Mingi Kim
- Department
of Chemistry, CRI Center for Chemical Proteomics, Seoul National University, Seoul 08826, Korea
| | - Yoon Soo Hwang
- Department
of Chemistry, CRI Center for Chemical Proteomics, Seoul National University, Seoul 08826, Korea
| | - Wansang Cho
- Department
of Chemistry, CRI Center for Chemical Proteomics, Seoul National University, Seoul 08826, Korea
| | - Seung Bum Park
- Department
of Chemistry, CRI Center for Chemical Proteomics, Seoul National University, Seoul 08826, Korea
- WCU
Department of Biophysics and Chemical Biology, Seoul National University, Seoul 08826, Korea
| |
Collapse
|
49
|
Zhang G, Sun S, Jiang L, Sun S, Luo X, Chen Z, Guo H, Xing Y. Piperidine promoted aldol reaction of alkynyl aldehydes and ethyl diazoacetate. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
50
|
Duan A, Yu P, Liu F, Qiu H, Gu FL, Doyle MP, Houk KN. Diazo Esters as Dienophiles in Intramolecular (4 + 2) Cycloadditions: Computational Explorations of Mechanism. J Am Chem Soc 2017; 139:2766-2770. [DOI: 10.1021/jacs.6b12371] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Abing Duan
- Key
Laboratory of Theoretical Chemistry of Environment, Ministry of Education;
School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Peiyuan Yu
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Fang Liu
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Huang Qiu
- Department
of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Feng Long Gu
- Key
Laboratory of Theoretical Chemistry of Environment, Ministry of Education;
School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
| | - Michael P. Doyle
- Department
of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - K. N. Houk
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| |
Collapse
|