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Jordan EJ, Calder EDE, Adcock HV, Male L, Nieger M, Slootweg JC, Jupp AR. Azophosphines: Synthesis, Structure and Coordination Chemistry. Chemistry 2024; 30:e202401358. [PMID: 38624247 DOI: 10.1002/chem.202401358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/17/2024]
Abstract
The conceptual replacement of nitrogen with phosphorus in common organic functional groups unlocks new properties and reactivity. The phosphorus-containing analogues of triazenes are underexplored but offer great potential as flexible and small bite-angle ligands. This manuscript explores the synthesis and characterisation of a family of air-stable azophosphine-borane complexes, and their subsequent deprotection to the free azophosphines. These compounds are structurally characterised, both experimentally and computationally, and highlight the availability of the phosphorus lone pair for coordination. This is confirmed by demonstrating that neutral azophosphines can act as ligands in Ru complexes, and can coordinate as monodentate or bidentate ligands in a controlled manner, in contrast to their nitrogen analogues.
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Affiliation(s)
- Emma J Jordan
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Ethan D E Calder
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Holly V Adcock
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Louise Male
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014, Helsinki, Finland
| | - J Chris Slootweg
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, PO Box 94157, 1090 GD, Amsterdam, The Netherlands
| | - Andrew R Jupp
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
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Rong MK, Holtrop F, Bobylev EO, Nieger M, Ehlers AW, Slootweg JC, Lammertsma K. Atypical and Asymmetric 1,3-P,N Ligands: Synthesis, Coordination and Catalytic Performance of Cycloiminophosphanes. Chemistry 2021; 27:14007-14016. [PMID: 34403555 PMCID: PMC8519111 DOI: 10.1002/chem.202101921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Indexed: 11/22/2022]
Abstract
Novel seven-membered cyclic imine-based 1,3-P,N ligands were obtained by capturing a Beckmann nitrilium ion intermediate generated in situ from cyclohexanone with benzotriazole, and then displacing it by a secondary phosphane under triflic acid promotion. These "cycloiminophosphanes" possess flexible non-isomerizable tetrahydroazepine rings with a high basicity; this sets them apart from previously reported iminophophanes. The donor strength of the ligands was investigated by using their P-κ1 - and P,N-κ2 -tungsten(0) carbonyl complexes, by determining the IR frequency of the trans-CO ligands. Complexes with [RhCp*Cl2 ]2 demonstrated the hemilability of the ligands, giving a dynamic equilibrium of κ1 and κ2 species; treatment with AgOTf gives full conversion to the κ2 complex. The potential for catalysis was shown in the RuII -catalyzed, solvent-free hydration of benzonitrile and the RuII - and IrI -catalyzed transfer hydrogenation of cyclohexanone in isopropanol. Finally, to enable access to asymmetric catalysts, chiral cycloiminophosphanes were prepared from l-menthone, as well as their P,N-κ2 -RhIII and a P-κ1 -RuII complexes.
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Affiliation(s)
- Mark K. Rong
- Department of Chemistry and Pharmaceutical SciencesVrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
| | - Flip Holtrop
- Department of Chemistry and Pharmaceutical SciencesVrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
| | - Eduard O. Bobylev
- Department of Chemistry and Pharmaceutical SciencesVrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
| | - Martin Nieger
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 55FIN-00014HelsinkiFinland
| | - Andreas W. Ehlers
- Department of Chemistry and Pharmaceutical SciencesVrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
- Department of ChemistryUniversity of JohannesburgOakland Park2006JohannesburgSouth Africa
- Present address: Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamP.O. Box 941571090 GDAmsterdamThe Netherlands
| | - J. Chris Slootweg
- Department of Chemistry and Pharmaceutical SciencesVrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
- Present address: Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamP.O. Box 941571090 GDAmsterdamThe Netherlands
| | - Koop Lammertsma
- Department of Chemistry and Pharmaceutical SciencesVrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
- Department of ChemistryUniversity of JohannesburgOakland Park2006JohannesburgSouth Africa
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Kandel R, Schatte G, Laverdure L, Mosey N, Jessop PG. Synthesis and coordination of a neutral phosphaguanidine and comparison of its basicity with a guanidine. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A phosphaguanidine [Me2NC(PPh2)=N i Pr], the analogous guanidine [Me2NC(NPh2)=N i Pr], and their hydrochloride (HCl) salts were prepared to study the influence of substituting a phosphorus atom for a nitrogen atom on the basicity of the two compounds and the bonding in their conjugate acids. The pK a values of both HCl salts were measured in acetonitrile by NMR titration. Surprisingly, the substitution of P for N has essentially no effect on basicity even though the geometry at that atom is changed. The presence of phenyl substituents in the protonated guanidine reduces the resonance in the CN3 core, whereas poor orbital overlap between P and C reduces the resonance in the N2CP core of the protonated phosphaguanidine. The neutral phosphaguanidine binds to a Cu(I) halide through both the Nimine and the P, which suggested that the basic N atom on the bound ligand may have little utility as a Brønsted base. Fortunately, however, a Cu(I) halide complex of the protonated phosphaguanidine is stable. Thus, the tendency of the basic N to bind to metals does not proscribe it serving as a metal-proximate Brønsted base.
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Affiliation(s)
- Ramjee Kandel
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Gabriele Schatte
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Laura Laverdure
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Nicholas Mosey
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Philip G. Jessop
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
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Kandel R, Schatte G, Jessop PG. Rh(i) and Ru(ii) phosphaamidine and phosphaguanidine (1,3-P,N) complexes and their activity for CO 2 hydrogenation. Dalton Trans 2019; 48:12512-12521. [PMID: 31363732 DOI: 10.1039/c9dt00602h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Phosphaamidine metal complexes Rh2Cl2[Ph2PC(Ph)[double bond, length as m-dash]NPh]2μ-CO (1), RuCl2[Ph2PC(Ph)[double bond, length as m-dash]N(Ph)]2 (2), [Rh{iPr2PC(Ph)[double bond, length as m-dash]NiPr}(COD)]BF4 (3), and RuCl2[iPr2PC(Ph)[double bond, length as m-dash]NiPr](DMSO)2 (4) are prepared by combining phosphaamidines Ph2P-C(Ph)[double bond, length as m-dash]NPh and iPr2P-C(Ph)[double bond, length as m-dash]NiPr (1,3-P,N) with their corresponding metal ions. Complexes 1 and 2 are stable in air while 3 and 4 are stable under inert conditions. For further comparison of structure and stability, a Ru(ii) phosphaguanidine complex, RuCl2[Me2NC(PPh2)[double bond, length as m-dash]NiPr](DMSO)2 (6) was prepared. Complex 6 is stable in air and in the presence of water. The structures of the phosphaamidine and phosphaguanidine complexes, determined using single crystal X-ray diffraction, revealed P,N bidentate coordination. While all five complexes have some activity as precatalysts, complex 6 was the most active.
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Affiliation(s)
- Ramjee Kandel
- Department of Chemistry, Queen's University, Kingston, ON, CanadaK7L 3N6.
| | - Gabriele Schatte
- Department of Chemistry, Queen's University, Kingston, ON, CanadaK7L 3N6.
| | - Philip G Jessop
- Department of Chemistry, Queen's University, Kingston, ON, CanadaK7L 3N6.
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Rong MK, Holtrop F, Slootweg JC, Lammertsma K. 1,3-P,N hybrid ligands in mononuclear coordination chemistry and homogeneous catalysis. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.08.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Fischer M, Steinert H, Schmidtmann M, Beckhaus R. Teaching c-phosphanylimines the titanaaziridine coordination mode. Dalton Trans 2019; 48:1936-1940. [DOI: 10.1039/c8dt04918a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The employment of a c-phosphanylimine for the synthesis of a novel titanaaziridine with an intramolecular phosphine donor side is reported, thus teaching the c-phosphanylimine a new coordination mode.
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Affiliation(s)
- Malte Fischer
- Institut für Chemie
- Fakultät für Mathematik und Naturwissenschaften
- Carl von Ossietzky Universität Oldenburg
- 26111 Oldenburg
- Germany
| | - Henning Steinert
- Institut für Chemie
- Fakultät für Mathematik und Naturwissenschaften
- Carl von Ossietzky Universität Oldenburg
- 26111 Oldenburg
- Germany
| | - Marc Schmidtmann
- Institut für Chemie
- Fakultät für Mathematik und Naturwissenschaften
- Carl von Ossietzky Universität Oldenburg
- 26111 Oldenburg
- Germany
| | - Ruediger Beckhaus
- Institut für Chemie
- Fakultät für Mathematik und Naturwissenschaften
- Carl von Ossietzky Universität Oldenburg
- 26111 Oldenburg
- Germany
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Loose F, Schmidtmann M, Beckhaus R. Imines in the Titanium Coordination Sphere - Transformation of Imidoyl Chlorides to Nitrilium Ions. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Florian Loose
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften; Carl von Ossietzky Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Marc Schmidtmann
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften; Carl von Ossietzky Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Rüdiger Beckhaus
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften; Carl von Ossietzky Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
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Rong MK, van Duin K, van Dijk T, de Pater JJM, Deelman BJ, Nieger M, Ehlers AW, Slootweg JC, Lammertsma K. Iminophosphanes: Synthesis, Rhodium Complexes, and Ruthenium(II)-Catalyzed Hydration of Nitriles. Organometallics 2017; 36:1079-1090. [PMID: 28316361 PMCID: PMC5350608 DOI: 10.1021/acs.organomet.7b00057] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Indexed: 11/29/2022]
Abstract
![]()
Highly
stable iminophosphanes, obtained from alkylating nitriles
and reaction of the resulting nitrilium ions with secondary phosphanes,
were explored as tunable P-monodentate and 1,3-P,N bidentate ligands
in rhodium complexes. X-ray crystal structures are reported for both
κ1 and κ2 complexes with the counterion
in one of them being an unusual anionic coordination polymer of silver
triflate. The iminophosphane-based ruthenium(II)-catalyzed hydration
of benzonitrile in 1,2-dimethoxyethane (180 °C, 3 h) and water
(100 °C, 24 h) and under solvent free conditions (180 °C,
3 h) results in all cases in the selective formation of benzamide
with yields of up to 96%, thereby outperforming by far the reactions
in which the common 2-pyridyldiphenylphosphane is used as the 1,3-P,N
ligand.
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Affiliation(s)
- Mark K Rong
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam , De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Koen van Duin
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam , De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Tom van Dijk
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam , De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Jeroen J M de Pater
- Arkema B.V. , location Vlissingen, P.O. Box 70, 4380 AB Vlissingen, The Netherlands
| | - Berth-Jan Deelman
- Arkema B.V. , location Vlissingen, P.O. Box 70, 4380 AB Vlissingen, The Netherlands
| | - Martin Nieger
- Laboratory of Inorganic Chemistry, Department of Chemistry, University of Helsinki , A. I. Virtasen aukio 1, P. O. Box 55, Helsinki, Finland
| | - A W Ehlers
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands; Department of Chemistry, University of Johannesburg, Oakland Park 2006, South Africa
| | - J Chris Slootweg
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam , De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Koop Lammertsma
- Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands; Department of Chemistry, University of Johannesburg, Oakland Park 2006, South Africa
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van Dijk T, Chris Slootweg J, Lammertsma K. Nitrilium ions – synthesis and applications. Org Biomol Chem 2017; 15:10134-10144. [PMID: 29188244 DOI: 10.1039/c7ob02533e] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Access to both stable and transient nitrilium ions and the use of these synthons in the organic synthesis of imines and a large spectrum of heterocycles and transition metal complexes are succinctly summarized.
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Affiliation(s)
- Tom van Dijk
- Department of Chemistry and Pharmaceutical Sciences
- Vrije Universiteit Amsterdam
- 1081 HV Amsterdam
- The Netherlands
| | - J. Chris Slootweg
- Department of Chemistry and Pharmaceutical Sciences
- Vrije Universiteit Amsterdam
- 1081 HV Amsterdam
- The Netherlands
| | - Koop Lammertsma
- Department of Chemistry and Pharmaceutical Sciences
- Vrije Universiteit Amsterdam
- 1081 HV Amsterdam
- The Netherlands
- Department of Chemistry
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Habraken ERM, Mens LC, Nieger M, Lutz M, Ehlers AW, Slootweg JC. Reactivity of the geminal phosphinoborane tBu2PCH2BPh2 towards alkynes, nitriles, and nitrilium triflates. Dalton Trans 2017; 46:12284-12292. [DOI: 10.1039/c7dt02570j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The reactivity of the geminal phosphinoborane tBu2PCH2BPh2 towards terminal alkynes, nitriles and nitrilium salts is investigated.
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Affiliation(s)
- Evi R. M. Habraken
- Van ‘t Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1090 GD Amsterdam
- The Netherlands
| | - Lars C. Mens
- Van ‘t Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1090 GD Amsterdam
- The Netherlands
| | - Martin Nieger
- Department of Chemistry
- University of Helsinki
- Helsinki
- Finland
| | - Martin Lutz
- Crystal and Structural Chemistry
- Bijvoet Center for Biomolecular Research
- Utrecht University
- 3584 CH Utrecht
- The Netherlands
| | - Andreas W. Ehlers
- Van ‘t Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1090 GD Amsterdam
- The Netherlands
- Department of Chemistry
| | - J. Chris Slootweg
- Van ‘t Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1090 GD Amsterdam
- The Netherlands
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Kandel R, Huynh K, Dalgliesh L, Wang R, Jessop PG. Contrasting connectivity of amidine and phosphaamidine (1,3-P,N) Cu(I) complexes. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.02.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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van Dijk T, Rong MK, Borger JE, Nieger M, Slootweg JC, Lammertsma K. Bis(imino)phosphanes: Synthesis and Coordination Chemistry. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tom van Dijk
- Department
of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Mark K. Rong
- Department
of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Jaap E. Borger
- Department
of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Martin Nieger
- Laboratory
of Inorganic Chemistry, Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, Helsinki, Finland
| | - J. Chris Slootweg
- Department
of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Koop Lammertsma
- Department
of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
- Department
of Chemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006 South Africa
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Keweloh L, Klöcker MSH, Würthwein EU, Uhl W. Ein P-H-funktionalisiertes Al/P-basiertes frustriertes Lewis-Paar: Substrataktivierung und selektiver Wasserstofftransfer. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511048] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lukas Keweloh
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
| | - M Sc. Hans Klöcker
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
| | - Ernst-Ulrich Würthwein
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
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Keweloh L, Klöcker H, Würthwein EU, Uhl W. A P−H Functionalized Al/P Frustrated Lewis Pair: Substrate Activation and Selective Hydrogen Transfer. Angew Chem Int Ed Engl 2016; 55:3212-5. [DOI: 10.1002/anie.201511048] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Lukas Keweloh
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstrasse 30 48149 Münster Germany
| | - Hans Klöcker
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstrasse 30 48149 Münster Germany
| | - Ernst-Ulrich Würthwein
- Organisch-chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstrasse 30 48149 Münster Germany
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Radcliffe JE, Batsanov AS, Smith DM, Scott JA, Dyer PW, Hanton MJ. Phosphanyl Methanimine (PCN) Ligands for the Selective Trimerization/Tetramerization of Ethylene with Chromium. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02106] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James E. Radcliffe
- Centre
for Sustainable Chemical Processes, Department of Chemistry, Durham University, South Road, Durham DH1
3LE, United Kingdom
| | - Andrei S. Batsanov
- Centre
for Sustainable Chemical Processes, Department of Chemistry, Durham University, South Road, Durham DH1
3LE, United Kingdom
| | - David M. Smith
- Sasol Technology
UK, Ltd., Purdie Building, North Haugh, St Andrews, Fife, KY16 9ST, United Kingdom
| | - John A. Scott
- Sasol Technology
UK, Ltd., Purdie Building, North Haugh, St Andrews, Fife, KY16 9ST, United Kingdom
| | - Philip W. Dyer
- Centre
for Sustainable Chemical Processes, Department of Chemistry, Durham University, South Road, Durham DH1
3LE, United Kingdom
| | - Martin J. Hanton
- Sasol Technology
UK, Ltd., Purdie Building, North Haugh, St Andrews, Fife, KY16 9ST, United Kingdom
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