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Microwave-Assisted, One-Pot Synthesis of Doxycycline under Heterogeneous Catalysis in Water. Antibiotics (Basel) 2021; 10:antibiotics10091084. [PMID: 34572666 PMCID: PMC8466421 DOI: 10.3390/antibiotics10091084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/03/2021] [Accepted: 09/05/2021] [Indexed: 12/01/2022] Open
Abstract
The selective synthesis of active pharmaceutical molecules is a challenging issue, particularly when attempting to make the reactions even more sustainable. The present work focuses on the microwave-assisted hydrogenolysis of oxytetracycline to selectively produce α-doxycycline. Although the combination of microwave irradiation and a heterogeneous rhodium catalyst provided good conversions, the selective synthesis of active α-doxycycline was only achieved when an oxytetracycline-cyclodextrin complex was used as the starting material, giving the desired product at 34.0% yield in a one-step reaction under very mild conditions.
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Saini P, Sonika, Singh G, Kaur G, Singh J, Singh H. Robust and Versatile Cu(I) metal frameworks as potential catalysts for azide-alkyne cycloaddition reactions: Review. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111432] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Single isomer cyclodextrins as chiral selectors in capillary electrophoresis. J Chromatogr A 2020; 1627:461375. [PMID: 32823120 DOI: 10.1016/j.chroma.2020.461375] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/24/2020] [Accepted: 06/28/2020] [Indexed: 12/23/2022]
Abstract
Since decades, cyclodextrins are one of the most powerful selectors in chiral capillary electrophoresis for the enantioseparation of diverse organic compounds. This review concerns papers published over the last decade (from 2009 until nowadays), dealing with the capillary electrophoretic application of single isomer cyclodextrin derivatives in chiral separations. Following a brief overview of their synthetic approaches, the inventory of the neutral, negatively and positively charged (including both permanently ionic and pH-tunable ionizable substituents) and zwitterionic CD derivatives is presented, with insights to underlying structural aspects by NMR spectroscopy and molecular modeling. CE represents an ideal tool to study the weak, non-covalent supramolecular interactions. The published methods are reviewed in the light of enantioselectivity, enantiomer migration order and the fine-tuning of enantiodiscrimination by the substitution pattern of the single entity selector molecules, which is hardly possible for their randomly substituted counterparts. All the reviewed publications herein support that cyclodextrin-based chiral capillary electrophoresis seems to remain a popular choice in pharmaceutical and biomedical analysis.
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Noshiranzadeh N, Emami M, Bikas R, Kozakiewicz A. Green click synthesis of β-hydroxy-1,2,3-triazoles in water in the presence of a Cu(ii)–azide catalyst: a new function for Cu(ii)–azide complexes. NEW J CHEM 2017. [DOI: 10.1039/c6nj03865d] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for preparing 1,2,3-triazols via a [3+2]-cycloaddition reaction is introduced. The effect of reaction temperature on the epoxide ring opening reactions is also investigated.
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Affiliation(s)
- Nader Noshiranzadeh
- Department of Chemistry
- Faculty of Sciences
- University of Zanjan
- 45195-313 Zanjan
- Islamic Republic of Iran
| | - Marzieh Emami
- Department of Chemistry
- Faculty of Sciences
- University of Zanjan
- 45195-313 Zanjan
- Islamic Republic of Iran
| | - Rahman Bikas
- Department of Chemistry
- Faculty of Sciences
- University of Zanjan
- 45195-313 Zanjan
- Islamic Republic of Iran
| | - Anna Kozakiewicz
- Faculty of Chemistry
- Nicolaus Copernicus University in Toruń
- 87-100 Toruń
- Poland
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Cravotto G, Caporaso M, Jicsinszky L, Martina K. Enabling technologies and green processes in cyclodextrin chemistry. Beilstein J Org Chem 2016; 12:278-94. [PMID: 26977187 PMCID: PMC4778522 DOI: 10.3762/bjoc.12.30] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 01/29/2016] [Indexed: 01/05/2023] Open
Abstract
The design of efficient synthetic green strategies for the selective modification of cyclodextrins (CDs) is still a challenging task. Outstanding results have been achieved in recent years by means of so-called enabling technologies, such as microwaves, ultrasound and ball mills, that have become irreplaceable tools in the synthesis of CD derivatives. Several examples of sonochemical selective modification of native α-, β- and γ-CDs have been reported including heterogeneous phase Pd- and Cu-catalysed hydrogenations and couplings. Microwave irradiation has emerged as the technique of choice for the production of highly substituted CD derivatives, CD grafted materials and polymers. Mechanochemical methods have successfully furnished greener, solvent-free syntheses and efficient complexation, while flow microreactors may well improve the repeatability and optimization of critical synthetic protocols.
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Affiliation(s)
- Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
| | - Marina Caporaso
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
| | - Laszlo Jicsinszky
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
| | - Katia Martina
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
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Martina K, Cravotto G, Caporaso M, Rinaldi L, Villalonga-Barber C, Ermondi G. Efficient microwave-assisted synthetic protocols and in silico behaviour prediction of per-substituted β-cyclodextrins. Org Biomol Chem 2014; 11:5521-7. [PMID: 23864008 DOI: 10.1039/c3ob40909k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective per-substituted cyclodextrin design enables the carrier's physicochemical and binding properties to be tailored and can even modify some biological native structure effects. We herein report a number of highly efficient microwave-assisted synthetic protocols for the preparation of several amino, ureido and thioureido per-substituted β-cyclodextrin derivatives. A rapid parallel synthetic approach has given a set of 14 different CD derivatives. Our strategy is supported by computational analyses which were used to estimate the physicochemical behaviour of per-substituted derivatives and to tailor suitable substituents.
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Affiliation(s)
- K Martina
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Torino, Italy
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Costa N, Matos S, Gomes da Silva MDR, Pereira MMA. Cyclodextrin-Based Ionic Liquids as Enantioselective Stationary Phases in Gas Chromatography. Chempluschem 2013; 78:1466-1474. [DOI: 10.1002/cplu.201300229] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/28/2013] [Indexed: 11/06/2022]
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Zamora MT, Ferguson MJ, McDonald R, Cowie M. Unsymmetrical Dicarbenes Based on N-Heterocyclic/Mesoionic Carbene Frameworks: A Stepwise Metalation Strategy for the Generation of a Dicarbene-Bridged Mixed-Metal Pd/Rh Complex. Organometallics 2012. [DOI: 10.1021/om3004543] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthew T. Zamora
- Department
of Chemistry and ‡X-ray Crystallography Laboratory, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Michael J. Ferguson
- Department
of Chemistry and ‡X-ray Crystallography Laboratory, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Robert McDonald
- Department
of Chemistry and ‡X-ray Crystallography Laboratory, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Martin Cowie
- Department
of Chemistry and ‡X-ray Crystallography Laboratory, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
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Bürglová K, Moitra N, Hodačová J, Cattoën X, Wong Chi Man M. Click Approaches to Functional Water-Sensitive Organotriethoxysilanes. J Org Chem 2011; 76:7326-33. [DOI: 10.1021/jo201484n] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kristýna Bürglová
- Institut Charles Gerhardt Montpellier (UMR 5253 CNRS-UM2-ENSCM-UM1), 8, rue de l′École Normale, 34296 Montpellier, France
- Department of Organic Chemistry, Institute of Chemical Technology, Technická 5, 16628 Praha 6, Czech Republic
| | - Nirmalya Moitra
- Institut Charles Gerhardt Montpellier (UMR 5253 CNRS-UM2-ENSCM-UM1), 8, rue de l′École Normale, 34296 Montpellier, France
| | - Jana Hodačová
- Department of Organic Chemistry, Institute of Chemical Technology, Technická 5, 16628 Praha 6, Czech Republic
| | - Xavier Cattoën
- Institut Charles Gerhardt Montpellier (UMR 5253 CNRS-UM2-ENSCM-UM1), 8, rue de l′École Normale, 34296 Montpellier, France
| | - Michel Wong Chi Man
- Institut Charles Gerhardt Montpellier (UMR 5253 CNRS-UM2-ENSCM-UM1), 8, rue de l′École Normale, 34296 Montpellier, France
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Cintas P, Palmisano G, Cravotto G. Power ultrasound in metal-assisted synthesis: From classical Barbier-like reactions to click chemistry. ULTRASONICS SONOCHEMISTRY 2011; 18:836-841. [PMID: 21216171 DOI: 10.1016/j.ultsonch.2010.11.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 11/26/2010] [Indexed: 05/30/2023]
Abstract
The search for more efficient and greener synthetic procedures to obtain highly functionalized chemical structures has always found in metal-assisted reactions a noteworthy strategy. All these reactions fall in the main domain of sonochemistry; in fact few techniques can compete with power ultrasound in so efficiently activating a metal surface, thus enhancing and accelerating its subsequent reaction with an organic substrate. Young researchers will certainly benefit from the rich literature and past experience of several pioneers who have, since the early eighties, laid the foundations of modern sonochemical synthetic protocols. Herein we provide a concise overview that describes how ultrasound acts in such a way as to make it a fundamental tool in improving the classical one-step coupling promoted by zero-valent metal species, usually referred to as Barbier-like reactions. From early hallmarks to recent accomplishments, especially the latest Cu-catalyzed alkyne-azide reaction (the so-called Click reaction), intended to be a universal ligation in chemistry and biology; we highlight the role and crucial effects of sonication on these processes.
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Affiliation(s)
- Pedro Cintas
- Departamento de Química Orgánica e Inorgánica, Universidad de Extremadura, Avenida de Elvas s/n, E-06006 Badajoz, Spain
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He XP, Li C, Jin XP, Song Z, Zhang HL, Zhu CJ, Shen Q, Zhang W, Sheng L, Shi XX, Tang Y, Li J, Chen GR, Xie J. Microwave-assisted construction of triazole-linked amino acid–glucoside conjugates as novel PTP1B inhibitors. NEW J CHEM 2011. [DOI: 10.1039/c0nj00835d] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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