1
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Oeser P, Tobrman T. Organophosphates as Versatile Substrates in Organic Synthesis. Molecules 2024; 29:1593. [PMID: 38611872 PMCID: PMC11154425 DOI: 10.3390/molecules29071593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
This review summarizes the applications of organophosphates in organic synthesis. After a brief introduction, it discusses cross-coupling reactions, including both transition-metal-catalyzed and transition-metal-free substitution reactions. Subsequently, oxidation and reduction reactions are described. In addition, this review highlights the applications of organophosphates in the synthesis of natural compounds, demonstrating their versatility and importance in modern synthetic chemistry.
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Affiliation(s)
| | - Tomáš Tobrman
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic;
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2
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Heinicke JW. o-Hydroxyarylphosphanes: Strategies for Syntheses of Configurationally Stable, Electronically and Sterically Tunable Ambiphiles with Multiple Applications. Chemistry 2024; 30:e202302740. [PMID: 37905970 DOI: 10.1002/chem.202302740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 11/02/2023]
Abstract
o-Hydroxyarylphosphanes are fascinating compounds by their multiple-reactivity features, attributed to the ambident hard and soft Lewis- and also Brønstedt acid-base properties, wide tuning opportunities via backbone substituents with ±mesomeric and inductive, at P and in o-position to P and O also steric effects, and in addition, the configurational stability at three-valent phosphorus. Air sensitivity may be overcome by reversible protection with BH3 , but the easy oxidation to P(V)-compounds may also be used. Since the first reports on the title compounds ca. 50 years ago the multiple reactivity has led to versatile applications. This includes various P-E-O and P=C-O heterocycles, a multitude of O-substituted derivatives including acyl derivatives for traceless Staudinger couplings of biomolecules with labels or functional substituents, phosphane-phosphite ligands, which like the o-phosphanylphenols itself form a range of transition metal complexes and catalysts. Also main group metal complexes and (bi)arylphosphonium-organocatalysts are derived. Within this review the various strategies for the access of the starting materials are illuminated, including few hints to selected applications.
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Affiliation(s)
- Joachim W Heinicke
- Emeritus Inorganic Chemistry, Institute of Biochemistry, University Greifswald, 17487, Greifswald, Germany
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3
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Bezawada SA, Ušto N, Wilke C, Barnes-Flaspoler M, Jagan R, Bauer EB. Ferrocenophanium Stability and Catalysis. Molecules 2023; 28:molecules28062729. [PMID: 36985702 PMCID: PMC10058812 DOI: 10.3390/molecules28062729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/30/2023] Open
Abstract
Ferrocenium catalysis is a vibrant research area, and an increasing number of ferrocenium-catalyzed processes have been reported in the recent years. However, the ferrocenium cation is not very stable in solution, which may potentially hamper catalytic applications. In an effort to stabilize ferrocenium-type architectures by inserting a bridge between the cyclopentadienyl rings, we investigated two ferrocenophanium (or ansa-ferrocenium) cations with respect to their stability and catalytic activity in propargylic substitution reactions. One of the ferrocenophanium complexes was characterized by single crystal X-ray diffraction. Cyclic voltammetry experiments of the ferrocenophane parent compounds were performed in the absence and presence of alcohol nucleophiles, and the stability of the cations in solution was judged based on the reversibility of the electron transfer. The experiments revealed a moderate stabilizing effect of the bridge, albeit the effect is not very pronounced or straightforward. Catalytic propargylic substitution test reactions revealed decreased activity of the ferrocenophanium cations compared to the ferrocenium cation. It appears that the somewhat stabilized ferrocenophanium cations show decreased catalytic activity.
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Affiliation(s)
- Sai Anvesh Bezawada
- Department of Chemistry and Biochemistry, University of Missouri, One University Boulevard, St. Louis, MO 63121, USA
| | - Neira Ušto
- Department of Chemistry and Biochemistry, University of Missouri, One University Boulevard, St. Louis, MO 63121, USA
| | - Chloe Wilke
- Department of Chemistry and Biochemistry, University of Missouri, One University Boulevard, St. Louis, MO 63121, USA
| | - Michael Barnes-Flaspoler
- Department of Chemistry and Biochemistry, University of Missouri, One University Boulevard, St. Louis, MO 63121, USA
| | - Rajamoni Jagan
- Department of Chemistry and Biochemistry, University of Missouri, One University Boulevard, St. Louis, MO 63121, USA
| | - Eike B Bauer
- Department of Chemistry and Biochemistry, University of Missouri, One University Boulevard, St. Louis, MO 63121, USA
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4
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Lang H, Mahrholdt J, Rüffer T, Kovalski E, Vrček V. Synthesis and Electrochemical Behavior of Ferrocenyl β‐Ketoamines FcC(O)CH=C(NH(C6H4‐4‐R‘)R. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202101059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Heinrich Lang
- der TU Chemnitz Institut f�r Chemie Stra�e der Nationen 62Lehrstuhl Anorganische Chemie 9111 Chemnitz GERMANY
| | - Julia Mahrholdt
- Technische Universität Chemnitz: Technische Universitat Chemnitz Chemistry GERMANY
| | - Tobias Rüffer
- Technische Universität Chemnitz: Technische Universitat Chemnitz Chemistry GERMANY
| | - Eduard Kovalski
- TU Chemnitz: Technische Universitat Chemnitz Anorganische Chemie GERMANY
| | - Valerije Vrček
- University of Zagreb: Sveuciliste u Zagrebu Organic Chemistry CROATIA
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5
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Korb M, Lang H. Rearrangements and Migrations along the Ferrocene Periphery: On the Way to Planar‐Chiral and (Multi)Substitution Patterns. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100946] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marcus Korb
- The University of Western Australia School of Molecular Sciences 35 Stirling Highway Crawley Perth WA 6009 Australia
| | - Heinrich Lang
- Technische Universität Chemnitz Faculty of Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
- MAIN Research Center Rosenbergstraße 6 09126 Chemnitz Germany
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6
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Arp FF, Ashirov R, Bhuvanesh N, Blümel J. Di(hydroperoxy)adamantane adducts: synthesis, characterization and application as oxidizers for the direct esterification of aldehydes. Dalton Trans 2021; 50:15296-15309. [PMID: 34636381 DOI: 10.1039/d1dt03243g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The di(hydroperoxy)adamantane adducts of water (1) and phosphine oxides p-Tol3PO·(HOO)2C(C9H14) (2), o-Tol3PO·(HOO)2C(C9H14) (3), and Cy3PO·(HOO)2C(C9H14) (4), as well as a CH2Cl2 adduct of a phosphole oxide dimer (8), have been created and investigated by multinuclear NMR spectroscopy, and by Raman and IR spectroscopy. The single crystal X-ray structures for 1-4 and 8 are reported. The IR and 31P NMR data are in accordance with strong hydrogen bonding of the di(hydroperoxy)adamantane adducts. The Raman ν(O-O) stretching bands of 1-4 prove that the peroxo groups are present in the solids. Selected di(hydroperoxy)alkane adducts, in combination with AlCl3 as catalyst, have been applied for the direct oxidative esterification of n-nonyl aldehyde, benzaldehyde, p-methylbenzaldehyde, p-bromobenzaldehyde, and o-hydroxybenzaldehyde to the corresponding methyl esters. The esterification takes place in an inert atmosphere, under anhydrous and oxygen-free conditions, within a time frame of 45 minutes to 5 hours at room temperature. Hereby, two oxygen atoms per adduct assembly are active with respect to the quantitative transformation of the aldehyde into the ester.
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Affiliation(s)
- Fabian F Arp
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
| | - Rahym Ashirov
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
| | - Janet Blümel
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
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7
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Mahrholdt J, Kovalski E, Korb M, Hildebrandt A, Vrček V, Lang H. Ferrocene‐Fused Acenequinones: Synthesis, Structure and Reaction Chemistry. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Julia Mahrholdt
- Technische Universität Chemnitz Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie 09107 Chemnitz Germany
| | - Eduard Kovalski
- Technische Universität Chemnitz Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie 09107 Chemnitz Germany
| | - Marcus Korb
- The University of Western Australia Faculty of Science, School of Molecular Science 6009 Perth Australia
| | - Alexander Hildebrandt
- Technische Universität Chemnitz Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie 09107 Chemnitz Germany
| | - Valerije Vrček
- University of Zagreb Faculty of Pharmacy and Biochemistry, Department of Organic Chemistry 10000 Zagreb Croatia
| | - Heinrich Lang
- Technische Universität Chemnitz Fakultät für Naturwissenschaften, Institut für Chemie, Anorganische Chemie 09107 Chemnitz Germany
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8
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Mahrholdt J, Rüffer T, Lang H. Synthesis and Electrochemical Studies of Ruthenium(II) Dicarbonyl Bis(ferrocenyl‐β‐diketonates). Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Julia Mahrholdt
- Institut für Chemie, Anorganische Chemie Fakultät für Naturwissenschaften Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Tobias Rüffer
- Institut für Chemie, Anorganische Chemie Fakultät für Naturwissenschaften Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Heinrich Lang
- Institut für Chemie, Anorganische Chemie Fakultät für Naturwissenschaften Technische Universität Chemnitz 09107 Chemnitz Germany
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9
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Lehrich SW, Mahrholdt J, Korb M, Hildebrandt A, Swarts JC, Lang H. Synthesis, Characterization, and Electrochemistry of Diferrocenyl β-Diketones, -Diketonates, and Pyrazoles. Molecules 2020; 25:molecules25194476. [PMID: 33003450 PMCID: PMC7583057 DOI: 10.3390/molecules25194476] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 11/24/2022] Open
Abstract
The synthesis of FcC(O)CH(R)C(O)Fc (Fc = Fe(η5-C5H4)(η5-C5H5); R = H, 5; nBu, 7; CH2CH2(OCH2CH2)2OMe, 9), [M(κ2O,O′-FcC(O)CHC(O)Fc)n] (M = Ti, n = 3, 10; M = Fe, n = 3, 11; M = BF2, n = 1, 12), and 1-R′-3,5-Fc2-cC3HN2 (R′ = H, 13; Me, 14; Ph, 15) is discussed. The solid-state structures of 5, 7, 9, 12, 13, 15, and 16 ([TiCl2(κ2O,O′-PhC(O)CHC(O)Ph)2]) show that 7 and 9 exist in their β-diketo form. Compound 13 crystallizes as a tetramer based on a hydrogen bond pattern, including one central water molecule. The electrochemical behavior of 5–7 and 9–16 was studied by cyclic and square-wave voltammetry, showing that the ferrocenyls can separately be oxidized reversibly between −50 and 750 mV (5–7, 9, 12–15: two Fc-related events; 10, 11: six events, being partially superimposed). For complex 10, Ti-centered reversible redox processes appear at −985 (TiII/TiIII) and −520 mV (TiIII/TiIV). Spectro-electrochemical UV-Vis/NIR measurements were carried out on 5, 6, and 12, whereby only 12 showed an IVCT (intervalence charge-transfer) band of considerable strength (νmax = 6250 cm−1, Δν½ = 4725 cm−1, εmax = 240 L·mol−1·cm−1), due to the rigid C3O2B cycle, enlarging the coupling strength between the Fc groups.
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Affiliation(s)
- Steve W. Lehrich
- Anorganische Chemie, Institut für Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, D-09107 Chemnitz, Germany; (S.W.L.); (J.M.); (A.H.)
| | - Julia Mahrholdt
- Anorganische Chemie, Institut für Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, D-09107 Chemnitz, Germany; (S.W.L.); (J.M.); (A.H.)
| | - Marcus Korb
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia;
| | - Alexander Hildebrandt
- Anorganische Chemie, Institut für Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, D-09107 Chemnitz, Germany; (S.W.L.); (J.M.); (A.H.)
| | - Jannie C. Swarts
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa;
| | - Heinrich Lang
- Anorganische Chemie, Institut für Chemie, Fakultät für Naturwissenschaften, Technische Universität Chemnitz, D-09107 Chemnitz, Germany; (S.W.L.); (J.M.); (A.H.)
- Correspondence: ; Tel./Fax: +49-(0)371-531-21210
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10
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Korb M, Schaarschmidt D, Grumbt M, König M, Lang H. Evaluation of the Transferability of the “Flexible Steric Bulk” Concept from N‐Heterocyclic Carbenes to Planar‐Chiral Phosphinoferrocenes and their Electronic Modification. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000414] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Marcus Korb
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Dieter Schaarschmidt
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Martin Grumbt
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Matthias König
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
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11
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Shekurov R, Khrizanforov M, Gerasimova T, Yamaleeva Z, Ivshin K, Lakomkina A, Bezkishko I, Kononov A, Sinyashin O, Budnikova Y, Kataeva O, Miluykov V. Electrochemical Properties and Structure of Multi-Ferrocenyl Phosphorus Thioesters. Molecules 2020; 25:E939. [PMID: 32093122 PMCID: PMC7070987 DOI: 10.3390/molecules25040939] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/14/2020] [Accepted: 02/17/2020] [Indexed: 12/03/2022] Open
Abstract
The reaction of triferrocenylthiophosphite with elemental sulfur leads to triferrocenyltetrathiophosphate. The molecule of tetrathiophosphate adopts propeller-like all synclinal-conformation of the ferrocenyl fragments respective to the P=S bond. All ferrocenyl groups have nearly ideal eclipsed conformation of the cyclopentadienyl fragments. The Fc3S3P (1), Fc3S3P=O, (2) and Fc3S3P=S (3) demonstrate three reversible and well-separated ferrocenyl-based redox events. The electronic structures of 1-3 have been studied quantum-chemically; the energies and composition of frontier orbitals have been calculated.
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Affiliation(s)
- Ruslan Shekurov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Mikhail Khrizanforov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Tatiana Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Zilya Yamaleeva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Kamil Ivshin
- A.M. Butlerov Chemistry Institute of the Kazan Federal University, Kremlevskaya str. 18, 420008 Kazan, Russia;
| | - Alyona Lakomkina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Ilya Bezkishko
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Aleksandr Kononov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Oleg Sinyashin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Yulia Budnikova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Olga Kataeva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
| | - Vasily Miluykov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov St., 420088 Kazan, Russia; (R.S.); (T.G.); (Z.Y.); (A.L.); (I.B.); (A.K.); (O.S.); (Y.B.); (O.K.); (V.M.)
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12
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Preuß A, Notz S, Kovalski E, Korb M, Blaudeck T, Hu X, Schuster J, Miesel D, Rüffer T, Hildebrandt A, Schreiter K, Spange S, Schulz SE, Lang H. Ferrocenyl-Pyrenes, Ferrocenyl-9,10-Phenanthrenediones, and Ferrocenyl-9,10-Dimethoxyphenanthrenes: Charge-Transfer Studies and SWCNT Functionalization. Chemistry 2020; 26:2635-2652. [PMID: 31650632 PMCID: PMC7064959 DOI: 10.1002/chem.201904450] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 11/06/2022]
Abstract
The synthesis of 1-Fc- (3), 1-Br-6-Fc- (5 a), 2-Br-7-Fc- (7 a), 1,6-Fc2 - (5 b), 2,7-Fc2 -pyrene (7 b), 3,6-Fc2 -9,10-phenanthrenedione (10), and 3,6-Fc2 -9,10-dimethoxyphenanthrene (12; Fc=Fe(η5 -C5 H4 )(η5 -C5 H5 )) is discussed. Of these compounds, 10 and 12 form 1D or 2D coordination polymers in the solid state. (Spectro)Electrochemical studies confirmed reversible Fc/Fc+ redox events between -130 and 160 mV. 1,6- and 2,7-Substitution in 5 a (E°'=-130 mV) and 7 a (E°'=50 mV) influences the redox potentials, whereas the ones of 5 b and 7 b (E°'=20 mV) are independent. Compounds 5 b, 7 b, 10, and 12 show single Fc oxidation processes with redox splittings between 70 and 100 mV. UV/Vis/NIR spectroelectrochemistry confirmed a weak electron transfer between FeII /FeIII in mixed-valent [5 b]+ and [12]+ . DFT calculations showed that 5 b non-covalently interacts with the single-walled carbon nanotube (SWCNT) sidewalls as proven by, for example, disentangling experiments. In addition, CV studies of the as-obtained dispersions confirmed exohedral attachment of 5 b at the SWCNTs.
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Affiliation(s)
- Andrea Preuß
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Sebastian Notz
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Eduard Kovalski
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Marcus Korb
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Current address: Faculty of Science, School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA, 6009, Australia
| | - Thomas Blaudeck
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany
| | - Xiao Hu
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany
| | - Jörg Schuster
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
| | - Dominique Miesel
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Tobias Rüffer
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Alexander Hildebrandt
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Katja Schreiter
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Stefan Spange
- Faculty of Natural Sciences, Institute of Chemistry, Polymer Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany
| | - Stefan E Schulz
- Center for Microtechnologies (ZfM), Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Fraunhofer Institute for Electronic Nano Systems (ENAS), Technologie-Campus 3, 09126, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
| | - Heinrich Lang
- Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, Technische Universität Chemnitz, 09107, Chemnitz, Germany.,Center for Advancing Electronics Dresden (cfaed), 09107, Chemnitz, Germany
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13
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Włodarczyk K, Borowski P, Stankevič M. [1,3]/[1,4]-Sulfur atom migration in β-hydroxyalkylphosphine sulfides. Beilstein J Org Chem 2020; 16:88-105. [PMID: 32082428 PMCID: PMC7006489 DOI: 10.3762/bjoc.16.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 01/10/2020] [Indexed: 11/23/2022] Open
Abstract
β-Hydroxyalkylphosphine sulfides undergo [1,3]- or [1,4]-sulfur atom phosphorus-to-carbon migration in the presence of Lewis or Brønsted acids. The direction of sulfur atom migration depends on the type of acid used for the reaction. In the presence of a Brønsted acid, mainly [1,3]-rearrangement is observed, whereas a Lewis acid catalyzes the [1,4]-sulfur migration. To gain insight into the mechanism of these transformations, the stereochemistry of these rearrangements have been tested, along with the conduction of some control experiments and DFT calculations.
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Affiliation(s)
- Katarzyna Włodarczyk
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University in Lublin, 33 Gliniana St., 20-614 Lublin, Poland
| | - Piotr Borowski
- Department of Chromatographic Methods, Faculty of Chemistry, Marie Curie-Skłodowska University in Lublin, 3 Marie Curie-Skłodowska Sq., 20-031 Lublin, Poland
| | - Marek Stankevič
- Department of Organic Chemistry, Faculty of Chemistry, Marie Curie-Skłodowska University in Lublin, 33 Gliniana St., 20-614 Lublin, Poland
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Ghazzy A, Taher D, Helal W, Korb M, Khalyfeh K, Awwadi FF, Al-Shewiki RK, Weheabby S, Al-Said N, Abu-Orabi ST, Lang H. Aryl ferrocenylmethylesters: Synthesis, solid-state structure and electrochemical investigations. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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15
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Berger O, Montchamp JL. Manganese-Catalyzed and Mediated Synthesis of Arylphosphinates and Related Compounds. J Org Chem 2019; 84:9239-9256. [PMID: 31242725 DOI: 10.1021/acs.joc.9b01239] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The free-radical arylation of H-phosphinates and related compounds was examined. A practical catalytic process with the air as the oxidant could not be found. However, an inexpensive and robust methodology was developed, using catalytic Mn(II) as the radical initiator and excess Mn(IV) as the stoichiometric oxidant. Using these conditions, the inter- and intramolecular arylation of phosphinylidene compounds has a broad scope, including application to the synthesis of P-heterocycles. A full account of this methodology is presented including a discussion of its limitations.
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Affiliation(s)
- Olivier Berger
- Department of Chemistry , Texas Christian University , P.O. Box 298860, Fort Worth , Texas 76129 , United States
| | - Jean-Luc Montchamp
- Department of Chemistry , Texas Christian University , P.O. Box 298860, Fort Worth , Texas 76129 , United States
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16
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Kharel S, Bhuvanesh N, Gladysz JA, Blümel J. New hydrogen bonding motifs of phosphine oxides with a silanediol, a phenol, and chloroform. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.03.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Roemer M, Wild DA, Sobolev AN, Skelton BW, Nealon GL, Piggott MJ, Koutsantonis GA. Carbon-Rich Trinuclear Octamethylferrocenophanes. Inorg Chem 2019; 58:3789-3799. [DOI: 10.1021/acs.inorgchem.8b03389] [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]
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18
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Korb M, Mahrholdt J, Liu X, Lang H. Reactivity of Planar‐Chiral α‐Ferrocenyl Carbocations towards Electron‐Rich Aromatics. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801430] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Marcus Korb
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry, Inorganic Chemistry 09107 Chemnitz Germany
| | - Julia Mahrholdt
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry, Inorganic Chemistry 09107 Chemnitz Germany
| | - Xianming Liu
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry, Inorganic Chemistry 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry, Inorganic Chemistry 09107 Chemnitz Germany
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19
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Korb M, Lang H. The anionic Fries rearrangement: a convenient route to ortho-functionalized aromatics. Chem Soc Rev 2019; 48:2829-2882. [DOI: 10.1039/c8cs00830b] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The scope and mechanism of anionic (hetero-) Fries rearrangements are summarized for various migrating groups and arenes, including applications and computational studies.
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Affiliation(s)
- Marcus Korb
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- Chemnitz
| | - Heinrich Lang
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- Chemnitz
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21
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Ferrocenylmethyl-functionalized 5-membered heterocycles: Synthesis, solid-state structure and electrochemical investigations. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Neel M, Retailleau P, Voituriez A, Marinetti A. Diastereoselective Synthesis of Planar Chiral Phosphoramidites with a Ferrocenophane Scaffold. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00700] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mathilde Neel
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Angela Marinetti
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
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Korb M, Mahrholdt J, Lang H. (Planar‐Chiral) Ferrocenylmethanols: From Anionic Homo Phospho‐Fries Rearrangements to α‐Ferrocenyl Carbenium Ions. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700645] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marcus Korb
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Julia Mahrholdt
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Inorganic Chemistry 09107 Chemnitz Germany
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