1
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Heinicke JW. o-Hydroxyaryl phosphanes: 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] [What about the content of this article? (0)] [Affiliation(s)] [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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2
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Ramazanova K, Lönnecke P, Hey-Hawkins E. Facile Synthesis of Enantiomerically Pure P-Chiral 1-Alkoxy-2,3-dihydrophospholes via Nucleophilic P-N Bond Cleavage of a 1-Phospha-2-azanorbornene. Chemistry 2023; 29:e202300790. [PMID: 37188645 DOI: 10.1002/chem.202300790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/30/2023] [Accepted: 05/15/2023] [Indexed: 05/17/2023]
Abstract
The reactive P-N bond in a racemic mixture of endo-1-phospha-2-azanorbornene (PAN) (RP /SP )-endo-1 is readily cleaved with enantiomerically pure lithium alkoxides followed by protonation to afford diastereomeric mixtures of P-chiral 1-alkoxy-2,3-dihydrophosphole derivatives. The isolation of these compounds is rather challenging due to the reversibility of the reaction (elimination of alcohols). However, methylation of the sulfonamide moiety of the intermediate lithium salts and sulfur protection of the phosphorus atom prevent the elimination reaction. The resulting air-stable P-chiral diastereomeric 1-alkoxy-2,3-dihydrophosphole sulfide mixtures can be readily isolated and fully characterized. The diastereomers can be separated by crystallization. The 1-alkoxy-2,3-dihydrophosphole sulfides are readily reduced with Raney nickel to afford phosphorus(III) P-stereogenic 1-alkoxy-2,3-dihydrophospholes with potential use in asymmetric homogeneous transition metal catalysis.
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Affiliation(s)
- Kyzgaldak Ramazanova
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - Peter Lönnecke
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
| | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103, Leipzig, Germany
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3
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Wübker A, Koppe J, Bradtmüller H, Keweloh L, Pleschka D, Uhl W, Hansen MR, Eckert H. Solid-State Nuclear Magnetic Resonance Techniques for the Structural Characterization of Geminal Alane-Phosphane Frustrated Lewis Pairs and Secondary Adducts. Chemistry 2021; 27:13249-13257. [PMID: 34270155 PMCID: PMC8518393 DOI: 10.1002/chem.202102113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Indexed: 11/17/2022]
Abstract
The first comprehensive solid-state nuclear magnetic resonance (NMR) characterization of geminal alane-phosphane frustrated Lewis pairs (Al/P FLPs) is reported. Their relevant NMR parameters (isotropic chemical shifts, direct and indirect 27 Al-31 P spin-spin coupling constants, and 27 Al nuclear electric quadrupole coupling tensor components) have been determined by numerical analysis of the experimental NMR line shapes and compared with values computed from the known crystal structures by using density functional theory (DFT) methods. Our work demonstrates that the 31 P NMR chemical shifts for the studied Al/P FLPs are very sensitive to slight structural inequivalences. The 27 Al NMR central transition signals are spread out over a broad frequency range (>200 kHz), owing to the presence of strong nuclear electric quadrupolar interactions that can be well-reproduced by the static 27 Al wideband uniform rate smooth truncation (WURST) Carr-Purcell-Meiboom-Gill (WCPMG) NMR experiment. 27 Al chemical shifts and quadrupole tensor components offer a facile and clear distinction between three- and four-coordinate aluminum environments. For measuring internuclear Al⋅⋅⋅P distances a new resonance-echo saturation-pulse double-resonance (RESPDOR) experiment was developed by using efficient saturation via frequency-swept WURST pulses. The successful implementation of this widely applicable technique indicates that internuclear Al⋅⋅⋅P distances in these compounds can be measured within a precision of ±0.1 Å.
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Affiliation(s)
- Anna‐Lena Wübker
- Institut für Physikalische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
| | - Jonas Koppe
- Institut für Physikalische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
| | - Henrik Bradtmüller
- Institut für Physikalische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
- Department of Materials EngineeringVitreous Materials LaboratoryFederal University of São CarlosCP 67613565-905São CarlosSPBrazil
| | - Lukas Keweloh
- Institut für Anorganische und Analytische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
| | - Damian Pleschka
- Institut für Anorganische und Analytische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
| | - Michael Ryan Hansen
- Institut für Physikalische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
| | - Hellmut Eckert
- Institut für Physikalische Chemie WWU MünsterCorrensstraße 28/3048149MünsterGermany
- Instituto de Física de São CarlosUniversidade de São PauloSão CarlosSP13566-590Brazil
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4
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Abstract
The reduction of the 1‐phospha‐2‐azanorbornene derivate endo‐1 with lithium aluminium hydride leads to an unprecedented 1‐phosphabicyclo[3.2.1]octa‐2,5‐diene, while a phospholide anion is formed with lithium. The latter can be protonated resulting in formation of an unusual 2H‐phosphole dimer. Furthermore, 3H‐phospholes, previously assumed to have no synthetic relevance as intermediates, were proposed to act as dienophile in the dimerisation of 3,4‐dimethyl‐1‐phenylphosphole at elevated temperatures based on theoretical calculations.
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Affiliation(s)
- Peter Wonneberger
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Nils König
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Menyhárt B Sárosi
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Evamarie Hey-Hawkins
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
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5
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Abstract
(Ferrocenylmethyl)phosphane (1) oxidation with hydrogen peroxide, elemental sulfur and grey selenium produced (ferrocenylmethyl)phosphane oxide 1O, sulfide 1S and selenide 1Se, respectively, as the first isolable primary phosphane chalcogenides lacking steric protection. At elevated temperatures, compound 1O disproportionated into 1 and (ferrocenylmethyl)phosphinic acid. In reactions with [(η6 -mes)RuCl2 ]2 , 1O underwent tautomerization into a phosphane complex [(η6 -mes)RuCl2 {FcCH2 PH(OH)-κP}], whereas 1S and 1Se lost their P-bound chalcogen atoms, giving rise to the phosphane complex [(η6 -mes)RuCl2 (FcCH2 PH2 -κP)] (Fc=ferrocenyl, mes=mesitylene). No tautomerization was observed in the reaction of 1O with B(C6 F5 )3 , which instead produced a Lewis pair FcCH2 P(O)H2 -B(C6 F5 )3 . Phosphane oxide 1O added to C=O bonds of aldehydes and ketones and even to cumulenes PhNCE (E=O and S). However, both PH hydrogens were only employed in the reactions with aldehydes and cyanates.
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Affiliation(s)
- Filip Horký
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
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6
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Abstract
The development of batteries and fuel cells has brought to light a need for carbon anode materials doped homogeneously with electrocatalytic metals. In particular, combinations of electrocatalysts in carbon have shown promising activity. A method to derive functional carbon materials is the pyrolysis of metallopolymers. This work describes the synthesis of a bifunctional phosphonium-based system derived from a phosphane-ene network. The olefin functionality can be leveraged in a hydrogermylation reaction to functionalize the material with Ge. Unaffected by this radical addition, the bromide counterion of the phosphonium cation can be used to subsequently incorporate a second metal in an ion-complexation reaction with CuBr2 . The characterization of the polymers and the derived ceramics are discussed.
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Affiliation(s)
- Vanessa A Béland
- Department of Chemistry and the Center for, Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, Ontario, N6A 5B7, Canada
| | - Paul J Ragogna
- Department of Chemistry and the Center for, Advanced Materials and Biomaterials Research (CAMBR), The University of Western Ontario, London, Ontario, N6A 5B7, Canada
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7
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Abstract
Electron-rich tertiary phosphines are valuable species in chemical synthesis. However, their broad application as ligands in catalysis and reagents in stoichiometric reactions is often limited by their costly synthesis. Herein, we report the synthesis and properties of a series of phosphines with 1-alkylpyridin-4-ylidenamino and 1-alkylpyridin-2-ylidenamino substituents that are accessible in a very short and scalable route starting from commercially available aminopyridines and chlorophosphines. The determination of the Tolman electronic parameter (TEP) value reveals that the electron donor ability can be tuned by the substituent pattern at the aminopyridine backbone and it can exceed that of common alkylphosphines and N-heterocyclic carbenes. The potential of the new phosphines as strong nucleophiles in phosphine-mediated transformations is demonstrated by the formation of Lewis base adducts with CO2 and CS2 . In addition, the coordination chemistry of the new phosphines towards CuI , AuI , and PdII metal centers has been explored, and a convenient procedure to introduce the most basic phosphine into metal complexes starting from air-stable phosphonium salt is described.
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Affiliation(s)
- Philipp Rotering
- Institut für Anorganische und Analytische ChemieWestfälische Wilhelms-Universität MünsterCorrensstrasse 3048149MünsterGermany
| | - Lukas F. B. Wilm
- Institut für Anorganische und Analytische ChemieWestfälische Wilhelms-Universität MünsterCorrensstrasse 3048149MünsterGermany
| | - Janina A. Werra
- Institut für Anorganische und Analytische ChemieWestfälische Wilhelms-Universität MünsterCorrensstrasse 3048149MünsterGermany
| | - Fabian Dielmann
- Institut für Anorganische und Analytische ChemieWestfälische Wilhelms-Universität MünsterCorrensstrasse 3048149MünsterGermany
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8
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Sato Y, Nishimura M, Kawaguchi SI, Nomoto A, Ogawa A. Reductive Rearrangement of Tetraphenyldiphosphine Disulfide To Trigger the Bisthiophosphinylation of Alkenes and Alkynes. Chemistry 2019; 25:6797-6806. [PMID: 30848860 DOI: 10.1002/chem.201900073] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Indexed: 12/13/2022]
Abstract
The facile synthesis of organophosphorus compounds is of great importance for the development of new synthetic methods by using air-stable sources of phosphorus. In this respect, a synthetic method that is based on a reductive rearrangement and is capable of converting air-stable pentavalent phosphorus compounds into reactive trivalent phosphorus compounds is a powerful tool. Tetraphenyldiphosphine disulfide, which is a shelf-stable solid, was the focus of this study, and it was shown to undergo reductive rearrangement to trigger the bisthiophosphinylation of a variety of alkenes, such as terminal, cyclic, internal, and branched alkenes, 1,3-dienes, and terminal alkynes when exposed to light without any catalyst, base, or additive.
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Affiliation(s)
- Yuki Sato
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
| | - Misaki Nishimura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
| | - Shin-Ichi Kawaguchi
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho Karatsu, Saga, 847-0021, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
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9
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Sato Y, Kawaguchi SI, Nomoto A, Ogawa A. Synthesis of Bis(phosphanyl)alkane Monosulfides by the Addition of Diphosphane Monosulfides to Alkenes under Light. Chemistry 2019; 25:2295-2302. [PMID: 30398679 DOI: 10.1002/chem.201805114] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Indexed: 11/07/2022]
Abstract
Bis-phosphanated compounds are regarded as the most ubiquitous privileged ligand structures in transition-metal catalysis. The development of highly atom economical reactions is of great importance for their syntheses because less atom economical methods often require complicated purification procedures under inert atmospheres to remove excess starting materials and byproducts. Herein, the photoinduced addition reactions of diphosphane monosulfides bearing PV (S)-PIII single bonds to alkenes is disclosed. These reactions require only equimolar amounts of the diphosphane monosulfide relative to the alkene and facilitate highly selective introduction of two different types of phosphorus-containing groups, such as thiophosphoryl and phosphanyl groups, into a variety of alkenes without any catalyst, base, or additive.
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Affiliation(s)
- Yuki Sato
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
| | - Shin-Ichi Kawaguchi
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho Karatsu, Saga, 847-0021, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
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10
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Jie X, Daniliuc CG, Knitsch R, Hansen MR, Eckert H, Ehlert S, Grimme S, Kehr G, Erker G. Aggregation Behavior of a Six-Membered Cyclic Frustrated Phosphane/Borane Lewis Pair: Formation of a Supramolecular Cyclooctameric Macrocyclic Ring System. Angew Chem Int Ed Engl 2018; 58:882-886. [PMID: 30452100 DOI: 10.1002/anie.201811873] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Indexed: 11/08/2022]
Abstract
A new six-membered cyclic frustrated phosphane/borane Lewis pair was liberated from its HB(C6 F5 )2 adduct by treatment with vinylcyclohexane. The system is an active frustrated Lewis pair that undergoes cycloaddition reactions with suitable π reagents and it splits dihydrogen. At room temperature in solution the new compound is a monomer, however, in the crystal and in solution at low temperature it aggregates to a thermodynamically favoured supramolecular macrocyclic cyclooctamer.
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Affiliation(s)
- Xiaoming Jie
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Robert Knitsch
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28, 48149, Münster, Germany
| | - Michael Ryan Hansen
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28, 48149, Münster, Germany
| | - Hellmut Eckert
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28, 48149, Münster, Germany.,Instituto de Fisica, Sáo Carlos, Universidade de São Paulo, CP 369, 13560-970, São Carlos S.P., Brazil
| | - Sebastian Ehlert
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Universität Bonn, Beringstraße 4, 53115, Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Universität Bonn, Beringstraße 4, 53115, Bonn, Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Gerhard Erker
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
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11
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Merk A, Großekappenberg H, Schmidtmann M, Luecke MP, Lorent C, Driess M, Oestreich M, Klare HFT, Müller T. Single-Electron Transfer Reactions in Frustrated and Conventional Silylium Ion/Phosphane Lewis Pairs. Angew Chem Int Ed Engl 2018; 57:15267-15271. [PMID: 30178534 DOI: 10.1002/anie.201808922] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/31/2018] [Indexed: 01/08/2023]
Abstract
Silylium ions undergo a single-electron reduction with phosphanes, leading to transient silyl radicals and the corresponding stable phosphoniumyl radical cations. As supported by DFT calculations, phosphanes with electron-rich 2,6-disubstituted aryl groups are sufficiently strong reductants to facilitate this single-electron transfer (SET). Frustration as found in kinetically stabilized triarylsilylium ion/phosphane Lewis pairs is not essential, and silylphosphonium ions, which are generated by conventional Lewis adduct formation of solvent-stabilized trialkylsilylium ions and phosphanes, engage in the same radical mechanism. The trityl cation, a Lewis acid with a higher electron affinity, even oxidizes trialkylphosphanes, such as tBu3 P, which does not react with either B(C6 F5 )3 or silylium ions.
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Affiliation(s)
- Anastasia Merk
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Henning Großekappenberg
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
| | - Marcel-Philip Luecke
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Christian Lorent
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Matthias Driess
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Hendrik F T Klare
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Thomas Müller
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, 26129, Oldenburg, Germany
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12
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Choy PY, Chung KH, Yang Q, So CM, Sun RWY, Kwong FY. A General Palladium-Phosphine Complex To Explore Aryl Tosylates in the N-Arylation of Amines: Scope and Limitations. Chem Asian J 2018; 13:2465-2474. [PMID: 29742319 DOI: 10.1002/asia.201800575] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/09/2018] [Indexed: 01/01/2023]
Abstract
The scope and limitations of the monoselective N-arylation of various amines by using aryl and hetaryl tosylates are presented. The air-stable and easily accessible Pd(OAc)2 /CM-phos {CM-phos=2-[2-(dicyclohexylphosphino)phenyl]-1-methyl-1H-indole}catalyst system was able to deal with a wide range of aryl tosylate substrates as well as amine nucleophiles, including primary and secondary cyclic/acyclic aliphatic amines and anilines. NH-Bearing heterocycles such as indole, carbazole, pyrrole, 10-phenothiazine, and 10-phenoxazine were shown to be feasible coupling partners under this catalytic system. The described reaction conditions tolerate a wide range of functional groups and allow an array of aromatic amines as well as unsymmetrical amine products to be easily accessed from the various phenolic derivatives. Interestingly, this catalyst system even offers the opportunity to perform the reaction in water medium. We also report the intermolecular coupling of optically active α-central chiral amines with aryl tosylates without erosion of the enantiomeric purity.
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Affiliation(s)
- Pui Ying Choy
- The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI), Shenzhen, P. R. China.,Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Kin Ho Chung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Qingjing Yang
- The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI), Shenzhen, P. R. China
| | - Chau Ming So
- The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI), Shenzhen, P. R. China.,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Raymond Wai-Yin Sun
- Guangzhou Lee & Man Technology Company Limited, 8 Huanshi Avenue South, Nansha, Guangzhou, Guangdong Province, China
| | - Fuk Yee Kwong
- The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI), Shenzhen, P. R. China.,Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.,Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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13
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Kharel S, Jia T, Bhuvanesh N, Reibenspies JH, Blümel J, Gladysz JA. A Nontemplated Route to Macrocyclic Dibridgehead Diphosphorus Compounds: Crystallographic Characterization of a "Crossed-Chain" Variant of in/out Stereoisomers. Chem Asian J 2018; 13:2632-2640. [PMID: 29870152 DOI: 10.1002/asia.201800739] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 05/29/2018] [Indexed: 02/28/2024]
Abstract
Reactions of (O=)PH(OCH2 CH3 )2 and BrMg(CH2 )m CH=CH2 (4.9-3.2 equiv; m=4 (a), 5 (b), 6 (c)) give the dialkylphosphine oxides (O=)PH[(CH2 )m CH=CH2 ]2 (2 a-c; 77-81 % after workup), which are treated with NaH and then α,ω-dibromides Br(CH2 )n Br (0.49-0.32 equiv; n=8 (a'), 10 (b'), 12 (c'), 14 (d')) to yield the bis(trialkylphosphine oxides) [H2 C=CH(CH2 )m ]2 P(=O)(CH2 )n (O=)P[(CH2 )m CH=CH2 ]2 (3 ab', 3 bc', 3 cd', 3 ca'; 79-84 %). Reactions of 3 bc' and 3 ca' with Grubbs' first-generation catalyst and then H2 /PtO2 afford the dibridgehead diphosphine dioxides (4 bc', 4 ca'; 14-19 %, n'=2m+2); 31 P NMR spectra show two stereoisomeric species (ca. 70:30). Crystal structures of two isomers of the latter are obtained, out,out-4 ca' and a conformer of in,out-4 ca' that features crossed chains, such that the (O=)P vectors appear out,out. Whereas 4 bc' resists crystallization, a byproduct derived from an alternative metathesis mode, (CH2 )12 P(=O)(CH2 )12 (O=)P(CH2 )12 , as well as 3 ab' and 3 bc', are structurally characterized. The efficiencies of other routes to dibridgehead diphosphorus compounds are compared.
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Affiliation(s)
- Sugam Kharel
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Tiezheng Jia
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Joseph H Reibenspies
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Janet Blümel
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - John A Gladysz
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
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14
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Pàmies O, Diéguez M. Adaptable P-X Biaryl Phosphite/Phosphoroamidite-Containing Ligands for Asymmetric Hydrogenation and C-X Bond-Forming Reactions: Ligand Libraries with Exceptionally Wide Substrate Scope. CHEM REC 2016; 16:2460-2481. [PMID: 27324282 DOI: 10.1002/tcr.201600062] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Indexed: 11/08/2022]
Abstract
In this personal review, we present our efforts in the design of ligand libraries for the discovery of suitable metal catalysts for asymmetric hydrogenation and C-X bond-forming reactions.
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Affiliation(s)
- Oscar Pàmies
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili C/Marcel·li Domingo, 1. 43007, Tarragona, Spain
| | - Montserrat Diéguez
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili C/Marcel·li Domingo, 1. 43007, Tarragona, Spain
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15
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Heurich T, Qu ZW, Nožinović S, Schnakenburg G, Matsuoka H, Grimme S, Schiemann O, Streubel R. Synthesis and Rearrangement of P-Nitroxyl-Substituted P(III) and P(V) Phosphanes: A Combined Experimental and Theoretical Case Study. Chemistry 2016; 22:10102-10. [PMID: 27283725 DOI: 10.1002/chem.201504900] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Indexed: 11/08/2022]
Abstract
Low-temperature generation of P-nitroxyl phosphane 2 (Ph2 POTEMP), which was obtained by the reaction of Ph2 PH (1) with two equivalents of TEMPO, is presented. Upon warming, phosphane 2 decomposed to give P-nitroxyl phosphane P-oxide 3 (Ph2 P(O)OTEMP) as one of the final products. This facile synthetic protocol also enabled access to P-sulfide and P-borane derivatives 7 and 13, respectively, by using Ph2 P(S)H (6) or Ph2 P(BH3 )H (11) and TEMPO. Phosphane sulfide 7 revealed a rearrangement to phosphane oxide 8 (Ph2 P(O)STEMP) in CDCl3 at ambient temperature, whereas in THF, thermal decomposition of sulfide 7 yielded salt 10 ([TEMP-H2 ][Ph2 P(S)O]). As well as EPR and detailed NMR kinetic studies, indepth theoretical studies provided an insight into the reaction pathways and spin-density distributions of the reactive intermediates.
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Affiliation(s)
- Tobias Heurich
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121, Bonn, Germany
| | - Zheng-Wang Qu
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115, Bonn, Germany
| | - Senada Nožinović
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121, Bonn, Germany
| | - Gregor Schnakenburg
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121, Bonn, Germany
| | - Hideto Matsuoka
- Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Wegelerstr. 12, 53115, Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115, Bonn, Germany.
| | - Olav Schiemann
- Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Wegelerstr. 12, 53115, Bonn, Germany.
| | - Rainer Streubel
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121, Bonn, Germany.
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16
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Neumann P, Dib H, Sournia-Saquet A, Grell T, Handke M, Caminade AM, Hey-Hawkins E. Ruthenium complexes with dendritic ferrocenyl phosphanes: synthesis, characterization, and application in the catalytic redox isomerization of allylic alcohols. Chemistry 2015; 21:6590-604. [PMID: 25767084 DOI: 10.1002/chem.201406489] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Indexed: 11/06/2022]
Abstract
An efficient system for the catalytic redox isomerization of the allylic alcohol 1-octen-3-ol to 3-octanone is presented. The homogeneous ruthenium(II) catalyst contains a monodentate phosphane ligand with a ferrocene moiety in the backbone and provides 3-octanone in quantitative yields. The activity is increased by nearly 90 % with respect to the corresponding triphenyl phosphane ruthenium(II) complex. By grafting the catalyst at the surface of a dendrimer, the catalytic activity is further increased. By introducing different spacers between ferrocene and phosphorus, the influence on the electronic properties of the complexes is shown by evaluating the electrochemical behavior of the compounds.
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Affiliation(s)
- Paul Neumann
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany), Fax: (+49) 341-973-9319 http://www.uni-leipzig.de/chemie//hh
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17
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Neumann P, Dib H, Caminade AM, Hey-Hawkins E. Redox control of a dendritic ferrocenyl-based homogeneous catalyst. Angew Chem Int Ed Engl 2014; 54:311-4. [PMID: 25414092 DOI: 10.1002/anie.201408314] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Indexed: 11/11/2022]
Abstract
The application of a dendrimer in a redox-switchable catalytic process is reported. A monomeric and the corresponding dendritic ferrocenylphosphane ligand were used to develop well-defined controllable catalysts with distinct redox states. The corresponding ruthenium(II) complexes catalyze the isomerization of the allylic alcohol 1-octen-3-ol. By adding a chemical oxidant or reductant, it was possible to reversibly switch the catalytic activity of the complexes. On oxidation, the ferrocenium moiety withdraws electron density from the phosphane, thereby lowering its basicity. The resulting electron-poor ruthenium center shows much lower activity for the redox isomerization and the reaction rate is markedly reduced.
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Affiliation(s)
- Paul Neumann
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, 04103 Leipzig (Germany) http://www.uni-leipzig.de/chemie//hh
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18
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Abstract
Various new P-based ring systems were synthesised by transferring established reaction routes from NP chemistry to the analogous PP compounds. Due to the different electronic situations of phosphorus and nitrogen with respect to s and p character of the lone pair, different reactivity of the phosphorus compounds was observed, especially with regard to the specificity of the reactions and the stability of the products. Whereas Mes*NPCl (Mes*=2,4,6-tri-tert-butylphenyl) is stable in the solid state and in solution, the formal phosphorus congener Mes*PPCl is highly reactive and could not be observed. Instead, several formal dimers and trimers of Mes*PPCl could be isolated, which constitute an intriguing variety of three- and four-membered ring systems.
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Affiliation(s)
- Jonas Bresien
- Universität Rostock, Institut für Chemie, Albert-Einstein-Strasse 3a, 18059 Rostock (Germany)
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19
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Jouffroy M, Gramage-Doria R, Armspach D, Sémeril D, Oberhauser W, Matt D, Toupet L. Confining phosphanes derived from cyclodextrins for efficient regio- and enantioselective hydroformylation. Angew Chem Int Ed Engl 2014; 53:3937-40. [PMID: 24590681 DOI: 10.1002/anie.201311291] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 01/27/2014] [Indexed: 11/06/2022]
Abstract
Two confining phosphane ligands derived from either α- or β-cyclodextrin produce singly P(III) -ligated metal complexes with unusual coordination spheres. High-pressure NMR studies have revealed that rhodium hydride complexes of the same type are also formed under hydroformylation conditions. This unique feature strongly favors the formation of the branched aldehyde at the expense of the linear one with high enantioselectivity in the rhodium-catalyzed hydroformylation of styrene.
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Affiliation(s)
- Matthieu Jouffroy
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse, Institut de Chimie UMR 7177 CNRS, Université de Strasbourg, 1 rue Blaise Pascal, 67008 Strasbourg Cedex (France)
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20
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Affiliation(s)
- Rafael Gramage-Doria
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904, 1098 XH, Amsterdam (The Netherlands) E-mail:
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21
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Lundgren RJ, Wilsily A, Marion N, Ma C, Chung YK, Fu GC. Catalytic asymmetric C-N bond formation: phosphine-catalyzed intra- and intermolecular γ-addition of nitrogen nucleophiles to allenoates and alkynoates. Angew Chem Int Ed Engl 2013; 52:2525-8. [PMID: 23339132 PMCID: PMC3819219 DOI: 10.1002/anie.201208957] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Indexed: 11/11/2022]
Abstract
Pin the amine on the gamma: A new method has been developed for the γ-addition of nitrogen nucleophiles to γ-substituted alkynoates or allenoates through intra- and intermolecular processes that are catalyzed by spirophosphine 1. An asymmetric version of this reaction affords enantioenriched pyrrolidines, indolines, and γ-amino-α,β-unsaturated carbonyl compounds.
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Affiliation(s)
- Rylan J. Lundgren
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 (USA)
| | - Ashraf Wilsily
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (USA)
| | - Nicolas Marion
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (USA)
| | - Cong Ma
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (USA)
| | - Ying Kit Chung
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (USA)
| | - Gregory C. Fu
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 (USA)
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22
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Boeck F, Blazejak M, Anneser MR, Hintermann L. Cyclization of ortho-hydroxycinnamates to coumarins under mild conditions: A nucleophilic organocatalysis approach. Beilstein J Org Chem 2012; 8:1630-6. [PMID: 23209495 PMCID: PMC3510995 DOI: 10.3762/bjoc.8.186] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 08/20/2012] [Indexed: 11/23/2022] Open
Abstract
(E)-Alkyl ortho-hydroxycinnamates cyclize to coumarins at elevated temperatures of 140-250 °C. We find that the use of tri-n-butylphosphane (20 mol %) as a nucleophilic organocatalyst in MeOH solution allows cyclization to take place under much milder conditions (60-70 °C). Several coumarins were prepared, starting from ortho-hydroxyarylaldehydes, by Wittig reaction with Ph(3)P=CHCO(2)Me to (E)-methyl ortho-hydroxycinnamates, followed by the phosphane catalyzed cyclization.
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Affiliation(s)
- Florian Boeck
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85748 Garching, Germany
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23
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Teixidor F, Núñez R, Viñas C, Sillanpää R, Kivekäs R. The Distinct Effect of the o-Carboranyl Fragment: Its Influence on the I-I Distance in R 3 PI 2 Complexes. Angew Chem Int Ed Engl 2000; 39:4290-4292. [PMID: 29711927 DOI: 10.1002/1521-3773(20001201)39:23<4290::aid-anie4290>3.0.co;2-3] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2000] [Indexed: 11/05/2022]
Affiliation(s)
- Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (CSIC) Campus de la U.A.B. 08193 Bellaterra, Spain, Fax: (+34) 935805729
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (CSIC) Campus de la U.A.B. 08193 Bellaterra, Spain, Fax: (+34) 935805729
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (CSIC) Campus de la U.A.B. 08193 Bellaterra, Spain, Fax: (+34) 935805729
| | - Reijo Sillanpää
- Department of Chemistry, University of Turku, 20014, Finland
| | - Raikko Kivekäs
- Department of Chemistry, University of Helsinki, 00014, Finland
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