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Szalai Z, Tóth B, Szabó RO, Bősze S, Karaghiosoff K, Czugler M, Drahos L, Keglevich G. A Study of the Bisphosphonic Derivatives from the Pudovik Reaction of Dialkyl α-Oxophosphonates and >P(O)H Reagents: X-ray Structure and Bioactivity. Molecules 2023; 28:6037. [PMID: 37630289 PMCID: PMC10459769 DOI: 10.3390/molecules28166037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
New hydroxy-methylenebisphosphonic derivatives were prepared with different P-functions. The outcome of the reaction of α-oxophosphonates (YC(O)P(O)(OR)2) and dialkyl phosphites or diarylphosphine oxides depended on the Y substituent of the oxo-compound, the nature of the P-reagent and the amount of the diethylamine catalyst. Starting from dimethyl α-oxoethylphosphonate, in the presence of 5% of diethylamine, the corresponding Pudovik adduct was the single product. While using 40% of the catalyst, the rearranged species with the >P(O)-O-CH-P(O)< skeleton was the exclusive component. A similar reaction of α-oxobenzylphosphonate followed the rearrangement protocol. X-ray crystallography revealed not only the spatial structures of the three products, but also an intricate pattern evolving from the interplay of slight chemical differences, solvent inclusion and disorder as well as H-bridge patterns, which invite further investigation. In vitro activity of the compounds was assessed on different tumor cell cultures using end-point-type cell tetrazolium-based measurements. These structure-activity studies revealed a cytostatic effect for four rearranged derivatives containing aromatic units. One of them had a pronounced effect on MDA-MB 231 and Ebc-1 cells, showing IC50 = 37.8 and 25.9 µM, respectively.
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Affiliation(s)
- Zsuzsanna Szalai
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, 1521 Budapest, Hungary; (Z.S.); (B.T.); (M.C.)
| | - Boldizsár Tóth
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, 1521 Budapest, Hungary; (Z.S.); (B.T.); (M.C.)
| | - Rita Oláhné Szabó
- Eötvös Loránd Research Network (ELKH), Research Group of Peptide Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary; (R.O.S.); (S.B.)
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Nagyvárad tér 4, 1089 Budapest, Hungary
| | - Szilvia Bősze
- Eötvös Loránd Research Network (ELKH), Research Group of Peptide Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary; (R.O.S.); (S.B.)
| | - Konstantin Karaghiosoff
- Department Chemie, Ludwig-Maximilians-Universitat München, Butenandtstr. 5-13, D-81377 München, Germany;
| | - Mátyás Czugler
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, 1521 Budapest, Hungary; (Z.S.); (B.T.); (M.C.)
| | - László Drahos
- MS Proteomics Research Group, Research Centre for Natural Sciences, 1117 Budapest, Hungary;
| | - György Keglevich
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, 1521 Budapest, Hungary; (Z.S.); (B.T.); (M.C.)
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Tetraalkyl Hydroxymethylene-bisphosphonate and Dialkyl 1-Diphenylphosphinoyl-1-hydroxy-ethylphosphonate Derivatives by the Pudovik Reaction and Their Rearranged Products. Molecules 2021; 26:molecules26247575. [PMID: 34946656 PMCID: PMC8707796 DOI: 10.3390/molecules26247575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 12/05/2022] Open
Abstract
The reaction of diethyl α-oxoethylphosphonate and diethyl oxobenzylphosphonate with diethyl phosphite, dimethyl phosphite, and diphenylphosphine oxide affords, depending on the substrates and conditions (nature and quantity of the amine catalyst, temperature, and solvent), the Pudovik adduct and/or the corresponding >P(O)–CH–O–P(O)< product formed by rearrangement. The nature of the substituent on the central carbon atom (a methyl or phenyl group) influences the inclination for the rearrangement. The asymmetric products (either adducts or rearranged species) with different P(O)Y functions (Y = RO or Ph) exhibit interesting NMR features.
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Keglevich G. Microwaves as "Co-Catalysts" or as Substitute for Catalysts in Organophosphorus Chemistry. Molecules 2021; 26:1196. [PMID: 33672361 PMCID: PMC7926777 DOI: 10.3390/molecules26041196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 11/16/2022] Open
Abstract
The purpose of this review is to summarize the importance of microwave (MW) irradiation as a kind of catalyst in organophosphorus chemistry. Slow or reluctant reactions, such as the Diels-Alder cycloaddition or an inverse-Wittig type reaction, may be performed efficiently under MW irradiation. The direct esterification of phosphinic and phosphonic acids, which is practically impossible on conventional heating, may be realized under MW conditions. Ionic liquid additives may promote further esterifications. The opposite reaction, the hydrolysis of P-esters, has also relevance among the MW-assisted transformations. A typical case is when the catalysts are substituted by MWs, which is exemplified by the reduction of phosphine oxides, and by the Kabachnik-Fields condensation affording α-aminophosphonic derivatives. Finally, the Hirao P-C coupling reaction may serve as an example, when the catalyst may be simplified under MW conditions. All of the examples discussed fulfill the expectations of green chemistry.
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Affiliation(s)
- György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1521 Budapest, Hungary
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Isbera M, Bognár B, Sár C, Jekő J, Kálai T. Syntheses and utilizations of pyrroline-nitroxide- and tetrahydropyridine-nitroxide-based α-ketophosphonates, β-ketophosphonates, and a bisphosphonate. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1880595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Mostafa Isbera
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Pécs, Hungary
| | - Balázs Bognár
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Pécs, Hungary
| | - Cecília Sár
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Pécs, Hungary
| | - József Jekő
- Department of Chemistry, University of Nyíregyháza, Nyíregyháza, Hungary
| | - Tamás Kálai
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Pécs, Hungary
- Szentágothai Research Centre, Pécs, Hungary
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Zhang JQ, Han LB. Chlorosilane-Catalyzed Coupling of Hydrogen Phosphine Oxides with Acyl Chlorides Generating Acylphosphine Oxides. Org Lett 2020; 22:4633-4637. [PMID: 32479733 DOI: 10.1021/acs.orglett.0c01384] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a new method for the synthesis of acylphosphine oxides by the direct coupling of hydrogen phosphine oxides and acyl chlorides mediated by chlorosilanes. This new protocol is greener and safer, because it precludes the generation of volatile haloalkanes and the use of oxidants employed in the conventional methods. Moreover, moisture-unstable acylphosphine oxides that are difficult to prepare via the conventional methods can be generated using this new method.
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Affiliation(s)
- Jian-Qiu Zhang
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.,Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Li-Biao Han
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.,Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
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Affiliation(s)
- Zita Rádai
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Hungary
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Keglevich G, Kiss NZ, Henyecz R, Mucsi Z. Microwave irradiation and catalysis in organophosphorus reactions. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-0501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Abstract
The usual advantage of microwave (MW) assistance is making organic reactions faster and more efficient. In this article we present reaction types from organophosphorus chemistry, when MW-assisted transformations (e.g. the direct esterification and alkylating esterification of phosphinic acids) may be promoted by suitable catalysts, or vice versa, when a catalytic reaction is enhanced by MW irradiation (e.g. the Arbuzov reaction of aryl halides), and when catalysts may be omitted or simplified under MW irradiation as shown by the alkylation of active methylene containing P=O substrates/the Kabachnik–Fields reaction/deoxygenation of phosphine oxides, and the Hirao reaction, respectively.
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Affiliation(s)
- György Keglevich
- Department of Organic Chemistry and Technology , Budapest University of Technology and Economics , 1521 Budapest , Hungary
| | - Nóra Zsuzsa Kiss
- Department of Organic Chemistry and Technology , Budapest University of Technology and Economics , 1521 Budapest , Hungary
| | - Réka Henyecz
- Department of Organic Chemistry and Technology , Budapest University of Technology and Economics , 1521 Budapest , Hungary
| | - Zoltán Mucsi
- Department of Organic Chemistry and Technology , Budapest University of Technology and Economics , 1521 Budapest , Hungary
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Keglevich G. The Impact of Microwaves on Organophosphorus Chemistry. CHEM REC 2018; 19:65-76. [DOI: 10.1002/tcr.201800006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/22/2018] [Indexed: 01/20/2023]
Affiliation(s)
- György Keglevich
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics 1521 Budapest Hungary
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Merino P, Maiuolo L, Delso I, Algieri V, De Nino A, Tejero T. Chemical approaches to inhibitors of isoprenoid biosynthesis: targeting farnesyl and geranylgeranyl pyrophosphate synthases. RSC Adv 2017. [DOI: 10.1039/c6ra28316k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The chemical synthesis of farnesyl and geranylgeranyl pyrophosphate synthase inhibitors are surveyed.
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Affiliation(s)
- Pedro Merino
- Departamento de Síntesis y Estructura de Biomoléculas
- ISQCH
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | - Loredana Maiuolo
- Dipartimento di Chimica
- Università della Calabria
- 87036 Rende
- Italy
| | - Ignacio Delso
- Departamento de Síntesis y Estructura de Biomoléculas
- ISQCH
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
| | - Vincenzo Algieri
- Dipartimento di Chimica
- Università della Calabria
- 87036 Rende
- Italy
| | - Antonio De Nino
- Dipartimento di Chimica
- Università della Calabria
- 87036 Rende
- Italy
| | - Tomas Tejero
- Departamento de Síntesis y Estructura de Biomoléculas
- ISQCH
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
- Spain
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Keglevich G, Kiss NZ, Bálint E, Bagi P, Grün A, Kovács T, Henyecz R, Ábrányi-Balogh P. Milestones in microwave-assisted organophosphorus chemistry. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2016.1211657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Nóra Z. Kiss
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Erika Bálint
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Péter Bagi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Alajos Grün
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Tamara Kovács
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Réka Henyecz
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Péter Ábrányi-Balogh
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
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Olszewski TK, Wojaczyńska E, Wieczorek R, Bąkowicz J. α-Hydroxyphosphonic acid derivatives of 2-azanorbornane: synthesis, DFT calculations, and crystal structure analysis. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.04.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Keglevich G, Kovács R, Grün A, Greiner I. Environmentally Friendly Syntheses and Tools. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.743543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- György Keglevich
- a Department of Organic Chemistry and Technology , Budapest University of Technology and Economics , Budapest , Hungary
| | - Rita Kovács
- a Department of Organic Chemistry and Technology , Budapest University of Technology and Economics , Budapest , Hungary
- b Research Group of the Hungarian Academy of Sciences at the Department of Organic Chemistry and Technology, Budapest University of Technology and Economics , Budapest , Hungary
| | - Alajos Grün
- a Department of Organic Chemistry and Technology , Budapest University of Technology and Economics , Budapest , Hungary
- b Research Group of the Hungarian Academy of Sciences at the Department of Organic Chemistry and Technology, Budapest University of Technology and Economics , Budapest , Hungary
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Sun YW, Zhu PL, Xu Q, Shi M. Phenyldioxaborolane promoted synthesis of bisphosphine compounds. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Keglevich G, Bálint E. The Kabachnik-Fields reaction: mechanism and synthetic use. Molecules 2012; 17:12821-35. [PMID: 23117425 PMCID: PMC6268146 DOI: 10.3390/molecules171112821] [Citation(s) in RCA: 184] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 10/25/2012] [Accepted: 10/26/2012] [Indexed: 11/23/2022] Open
Abstract
The Kabachnik–Fields (phospha-Mannich) reaction involving the condensation of primary or secondary amines, oxo compounds (aldehydes and ketones) and >P(O)H species, especially dialkyl phosphites, represents a good choice for the synthesis of α-aminophosphonates that are of significant importance due to their biological activity. In general, these three-component reactions may take place via an imine or an α-hydroxy-phosphonate intermediate. The monitoring of a few Kabachnik–Fields reactions by in situ Fourier transform IR spectroscopy has indicated the involvement of the imine intermediate that was also justified by theoretical calculations. The Kabachnik–Fields reaction was extended to >P(O)H species, comprising cyclic phosphites, acyclic and cyclic H-phosphinates, as well as secondary phosphine oxides. On the other hand, heterocyclic amines were also used to prepare new α-amino phosphonic, phosphinic and phosphine oxide derivatives. In most cases, the synthesis under solvent-free microwave (MW) conditions is the method of choice. It was proved that, in the cases studied by us, there was no need for the use of any catalyst. Moreover, it can be said that sophisticated and environmentally unfriendly catalysts suggested are completely unnecessary under MW conditions. Finally, the double Kabachnik–Fields reaction has made available bis(phosphonomethyl)amines, bis(phosphinoxidomethyl)amines and related species. The bis(phosphinoxidomethyl)amines serve as precursors for bisphosphines that furnish ring platinum complexes on reaction with dichlorodibenzonitriloplatinum.
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Affiliation(s)
- György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary.
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