1
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Hao H, Bagnol T, Pucheault M, Schafer LL. Using Catalysts To Make Catalysts: Titanium-Catalyzed Hydroamination To Access P,N-Ligands for Assembling Catalysts in One Pot. Org Lett 2021; 23:1974-1979. [PMID: 33661014 DOI: 10.1021/acs.orglett.0c04212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using a diamido-bis(amidate) titanium precatalyst, the hydroamination of alkynylphosphines afforded phosphinoenamine products. After reduction, 2-aminophosphines are prepared in excellent yield and on gram scale. A broad variety of alkynylphosphines and primary amines with different electronic and steric features are tolerated in this sequential transformation, enabling the rapid assembly of a collection of ligands. Additionally, intermediate phosphinoenamines can be used directly as proligands for coordination to transition metals using protonolysis or salt metathesis reactions. These transformations result in easy-to-use one pot protocols to prepare metal P,N-complexes for catalysis or small molecule activation.
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Affiliation(s)
- Han Hao
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC Canada, V6T1Z1
| | - Thibault Bagnol
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC Canada, V6T1Z1.,Institut des Sciences Moléculaires Université de Bordeaux, Institut Européen de Chimie et Biologie 2 Rue Robert Escarpit, 33600 Pessac, France
| | - Mathieu Pucheault
- Institut des Sciences Moléculaires Université de Bordeaux, Institut Européen de Chimie et Biologie 2 Rue Robert Escarpit, 33600 Pessac, France
| | - Laurel L Schafer
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC Canada, V6T1Z1
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2
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Motolko KSA, Price JS, Emslie DJH, Jenkins HA, Britten JF. Zirconium Complexes of a Rigid, Dianionic Pincer Ligand: Alkyl Cations, Arene Coordination, and Ethylene Polymerization. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00424] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kelly S. A. Motolko
- Department of Chemistry
and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Jeffrey S. Price
- Department of Chemistry
and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - David J. H. Emslie
- Department of Chemistry
and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Hilary A. Jenkins
- Department of Chemistry
and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - James F. Britten
- Department of Chemistry
and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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3
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Burford RJ, Yeo A, Fryzuk MD. Dinitrogen activation by group 4 and group 5 metal complexes supported by phosphine-amido containing ligand manifolds. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.06.015] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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4
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Batke S, Sietzen M, Merz L, Wadepohl H, Ballmann J. Closely Related Benzylene-Linked Diamidophosphine Scaffolds and Their Zirconium and Hafnium Complexes: How Small Changes of the Ligand Result in Different Complex Stabilities and Reactivities. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00384] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sonja Batke
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany
| | - Malte Sietzen
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany
| | - Lukas Merz
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany
| | - Joachim Ballmann
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany
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5
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Plundrich GT, Wadepohl H, Clot E, Gade LH. η(6) -Arene-Zirconium-PNP-Pincer Complexes: Mechanism of Their Hydrogenolytic Formation and Their Reactivity as Zirconium(II) Synthons. Chemistry 2016; 22:9283-92. [PMID: 27258989 DOI: 10.1002/chem.201601213] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Indexed: 11/08/2022]
Abstract
The cyclometalated monobenzyl complexes [(Cbzdiphos(R) -CH)ZrBnX] 1 (iPr) Cl and 1 (Ph) I reacted with dihydrogen (10 bar) to yield the η(6) -toluene complexes [(Cbzdiphos(R) )Zr(η(6) -tol)X] 2 (iPr) Cl and 2 (Ph) I (cbzdiphos=1,8-bis(phosphino)-3,6-di-tert-butyl-9H-carbazole). The arene complexes were also found to be directly accessible from the triiodide [(Cbzdiphos(Ph) )ZrI3 ] through an in situ reaction with a dibenzylmagnesium reagent and subsequent hydrogenolysis, as exemplified for the η(6) -mesitylene complex [(Cbzdiphos(Ph) )Zr(η(6) -mes)I] (3 (Ph) I). The tolyl-ring in 2 (iPr) Cl adopts a puckered arrangement (fold angle 23.3°) indicating significant arene-1,4-diido character. Deuterium labeling experiments were consistent with an intramolecular reaction sequence after the initial hydrogenolysis of a Zr-C bond by a σ-bond metathesis. A DFT study of the reaction sequence indicates that hydrogenolysis by σ-bond metathesis first occurs at the cyclometalated ancillary ligand giving a hydrido-benzyl intermediate, which subsequently reductively eliminates toluene that then coordinates to the Zr atom as the reduced arene ligand. Complex 2 (Ph) I was reacted with 2,6-diisopropylphenyl isocyanide giving the deep blue, diamagnetic Zr(II) -diisocyanide complex [(Cbzdiphos(Ph) )Zr(CNDipp)2 I] (4 (Ph) I). DFT modeling of 4 (Ph) I demonstrated that the HOMO of the complex is primarily located as a "lone pair on zirconium", with some degree of back-bonding into the C≡N π* bond, and the complex is thus most appropriately described as a zirconium(II) species. Reaction of 2 (Ph) I with trimethylsilylazide (N3 TMS) and 2 (iPr) Cl with 1-azidoadamantane (N3 Ad) resulted in the formation of the imido complexes [(Cbzdiphos(R) )Zr=NR'(X)] 5 (iPr) Cl-NAd and 5 (Ph) I-NTMS, respectively. Reaction of 2 (iPr) Cl with azobenzene led to N-N bond scission giving 6 (iPr) Cl, in which one of the NPh-fragments is coupled with the carbazole nitrogen to form a central η(2) -bonded hydrazide(-1), whereas the other NPh-fragment binds to zirconium acting as an imido-ligand. Finally, addition of pyridine to 2 (iPr) Cl yielded the dark purple complex [(Cbzdiphos(iPr) )Zr(bpy)Cl] (7 (iPr) Cl) through a combination of CH-activation and C-C-coupling. The structural data and UV/Vis spectroscopic properties of 7 (iPr) Cl indicate that the bpy (bipyridine) may be regarded as a (dianionic) diamido-type ligand.
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Affiliation(s)
- Gudrun T Plundrich
- Anorganisch Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Eric Clot
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM, Université de Montpellier, cc 1501, Place Eugène Bataillon, 34095, Montpellier Cedex 5, France.
| | - Lutz H Gade
- Anorganisch Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
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6
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Batke S, Kothe T, Haas M, Wadepohl H, Ballmann J. Diamidophosphines with six-membered chelates and their coordination chemistry with group 4 metals: development of a trimethylene-methane-tethered [PN2]-type "molecular claw". Dalton Trans 2016; 45:3528-40. [PMID: 26804587 DOI: 10.1039/c5dt04911c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination chemistry of the phosphine-tethered diamidophosphine ligands PhP(CH2CH2CH2NHPh)2 (pr[NPN]H2) and PhP(1,2-CH2-C6H4-NHSiMe3)2 (bn[NPN]H2) featuring six-membered N–C3–P chelates was explored with group 4 metals, which allowed for the consecutive development of a new trimethylene-methane-tethered [PN2] scaffold. In the case of the propylene-linked system pr[NPN]H2, access to the sparingly soluble dibenzyl derivative pr[NPN]ZrBn2 (3-Zr) was gained, while thermally sensitive zirconium and hafnium diiodo complexes bn[NPN]MI2 (5-M, M = Zr, Hf) were isolated in the case of the benzylene-linked derivative bn[NPN]H2. Despite the related phosphine-tethered backbone architectures of both of these ligands, their group 4 complexes were found to exhibit either C1-symmetric (bn[NPN]MX2) or averaged CS-symmetric (pr[NPN]MX2) structures in solution. To restrain the overall flexibility of these systems and thereby control the properties of the resulting complexes without disrupting the six-membered chelates, the new trimethylene-methane-tethered N,N′-di-(tert-butyl)-substituted [PN2]H2 protioligand was designed. This tripodal ligand system was prepared on a gram scale and its CS-symmetric dichloro complexes [PN2]MCl2 (6-M, M = Ti, Zr, Hf) were isolated subsequently. The benzene-soluble dibenzyl derivative [PN2]ZrBn2 (7-Zr) was synthesised as well and characterised by X-ray diffraction. These results are discussed not only in conjunction with the known [NPN]-coordinated group 4 complexes incorporating five-membered chelates, but also in the context of “molecular claws” that are related to the new [PN2] tripod.
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Affiliation(s)
- S Batke
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - T Kothe
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - M Haas
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - H Wadepohl
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - J Ballmann
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
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7
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Annibale VT, Ostapowicz TG, Westhues S, Wambach TC, Fryzuk MD. Synthesis of a sterically bulky diphosphine synthon and Ru(ii) complexes of a cooperative tridentate enamide-diphosphine ligand platform. Dalton Trans 2016; 45:16011-16025. [DOI: 10.1039/c6dt02352e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The preparation of the bulky diphosphine synthon 1 is described and used to generate a tridentate enamido diphosphine ligand platform that can be installed on Ru(ii).
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Affiliation(s)
| | | | - Stefan Westhues
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Truman C. Wambach
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Michael D. Fryzuk
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
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8
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Hein NM, Suzuki T, Ogawa T, Fryzuk MD. Low coordinate iron derivatives stabilized by a β-diketiminate mimic. Synthesis and coordination chemistry of enamidophosphinimine scaffolds to generate diiron dinitrogen complexes. Dalton Trans 2016; 45:14697-708. [DOI: 10.1039/c6dt01673a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reduction of the iron enamido-phosphinimine complex under N2 leads to dinitrogen activation and cleavage of the phosphinimine linkage to generate a di-iron complex with a bridging imido moiety.
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Affiliation(s)
- Nicholas M. Hein
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Tatsuya Suzuki
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Takahiko Ogawa
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Michael D. Fryzuk
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
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9
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Nakanishi Y, Ishida Y, Kawaguchi H. Synthesis and reactions of a zirconium naphthalene complex bearing a tetraanionic C-capped triaryloxide ligand. Dalton Trans 2016; 45:15879-15885. [DOI: 10.1039/c6dt01848c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A zirconium naphthalene complex containing a C-capped triaryloxide ligand, which can act as a Zr(ii) synthon, was synthesized and fully characterized.
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Affiliation(s)
- Yusuke Nakanishi
- Department of Chemistry
- Tokyo Institute of Technology
- Ookayama, Meguro-ku
- Japan
| | - Yutaka Ishida
- Department of Chemistry
- Tokyo Institute of Technology
- Ookayama, Meguro-ku
- Japan
| | - Hiroyuki Kawaguchi
- Department of Chemistry
- Tokyo Institute of Technology
- Ookayama, Meguro-ku
- Japan
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10
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Plundrich GT, Wadepohl H, Gade LH. Synthesis and Reactivity of Group 4 Metal Benzyl Complexes Supported by Carbazolide-Based PNP Pincer Ligands. Inorg Chem 2015; 55:353-65. [DOI: 10.1021/acs.inorgchem.5b02498] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gudrun T. Plundrich
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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11
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Suzuki T, Wasada-Tsutsui Y, Ogawa T, Inomata T, Ozawa T, Sakai Y, Fryzuk MD, Masuda H. N2 activation by an iron complex with a strong electron-donating iminophosphorane ligand. Inorg Chem 2015; 54:9271-81. [PMID: 26135343 DOI: 10.1021/acs.inorgchem.5b00536] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new tridentate cyclopentane-bridged iminophosphorane ligand, N-(2-diisopropylphosphinophenyl)-P,P-diisopropyl-P-(2-(2,6-diisopropylphenylamido)cyclopent-1-enyl)phosphoranimine (NpNPiPr), was synthesized and used in the preparation of a diiron dinitrogen complex. The reaction of the iron complex FeBr(NpNPiPr) with KC8 under dinitrogen yielded the dinuclear dinitrogen Fe complex [Fe(NpNPiPr)]2(μ-N2), which was characterized by X-ray analysis and resonance Raman and NMR spectroscopies. The X-ray analysis revealed a diiron complex bridged by the dinitrogen molecule, with each metal center coordinated by an NpNPiPr ligand and dinitrogen in a trigonal-monopyramidal geometry. The N–N bond length is 1.184(6) Å, and resonance Raman spectra indicate that the N–N stretching mode ν(14N2/15N2) is 1755/1700 cm–1. The magnetic moment of [Fe(NpNPiPr)]2(μ-N2) in benzene-d6 solution, as measured by 1H NMR spectroscopy by the Evans method, is 6.91μB (S = 3). The Mössbauer spectrum at 78 K showed δ = 0.73 mm/s and ΔEQ = 1.83 mm/s. These findings suggest that the iron ions are divalent with a high-spin configuration and that the N2 molecule has (N═N)2– character. Density functional theory calculations performed on [Fe(NpNPiPr)]2(μ-N2) also suggested that the iron is in a high-spin divalent state and that the coordinated dinitrogen molecule is effectively activated by π back-donation from the two iron ions (dπ) to the dinitrogen molecule (πx* and πy*). This is supported by cooperation between a large negative charge on the iminophosphorane ligand and strong electron donation and effective orbital overlap between the iron dπ orbitals and N2 π* orbitals supplied by the phosphine ligand.
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Affiliation(s)
- Tatsuya Suzuki
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso, Showa, Nagoya 466-8555, Japan.,Department of Chemistry, The University of British Columbia , 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Yuko Wasada-Tsutsui
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso, Showa, Nagoya 466-8555, Japan
| | - Takahiko Ogawa
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso, Showa, Nagoya 466-8555, Japan
| | - Tomohiko Inomata
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso, Showa, Nagoya 466-8555, Japan
| | - Tomohiro Ozawa
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso, Showa, Nagoya 466-8555, Japan
| | - Yoichi Sakai
- Department of Chemistry, Daido University , Takiharu-cho, Minami-ku, Nagoya 457-8530, Japan
| | - Michael D Fryzuk
- Department of Chemistry, The University of British Columbia , 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Hideki Masuda
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso, Showa, Nagoya 466-8555, Japan
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12
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Wambach TC, Fryzuk MD. Ruthenium Complexes Stabilized by Bidentate Enamido-Phosphine Ligands: Aspects of Cooperative H2 Activation. Inorg Chem 2015; 54:5888-96. [DOI: 10.1021/acs.inorgchem.5b00672] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Truman C. Wambach
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Michael D. Fryzuk
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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13
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Ogawa T, Suzuki T, Hein NM, Pick FS, Fryzuk MD. Cleavage of an aryl carbon–nitrogen bond of a phosphazido iron(ii) complex promoted by hydride metathesis. Dalton Trans 2015; 44:54-7. [DOI: 10.1039/c4dt03136a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The unexpected reaction of a Fe(ii) enamidophosphazide complex with KBEt3H, which results in the elimination of N2 and 1,3-Me2C6H4 to generate a dinuclear Fe(ii) derivative with bridging phosphinimido units, is presented along with mechanistic studies.
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Affiliation(s)
| | | | - Nicholas M. Hein
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Fraser S. Pick
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Michael D. Fryzuk
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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14
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Batke S, Sietzen M, Wadepohl H, Ballmann J. A tripodal benzylene-linked trisamidophosphine ligand scaffold: synthesis and coordination chemistry with group(IV) metals. Inorg Chem 2014; 53:4144-53. [PMID: 24712705 DOI: 10.1021/ic500163c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A new tripodal trisamidophosphine ligand (1) based on the trisbenzylphosphine backbone has been synthesized in three steps starting from NaPH2 and phthaloyl-protected 2-aminobenzyl bromide. At elevated temperatures, 1 reacts directly with M(NMe2)4 (M = Zr, Hf) to afford the dimethylamido complexes [PN3]M(NMe2) (M = Zr, Hf) (2), which are easily converted into the corresponding triflates [PN3]MOTf (M = Zr, Hf) (3) via reaction with triethylsilyl trifluoromethanesulfonate. The related titanium chloro complex [PN3]TiCl (4-Ti) is obtained from 1 and Bn3TiCl via protonolysis. Triple deprotonation of 1 with n-butyllithium affords the tris-lithium salt Li3[PN3] (1-Li), which serves as a common starting material for the preparation of all the group(IV) chlorides [PN3]MCl (M = Ti, Zr, Hf) (4). Upon treatment of 4-Ti with Bn2Mg(thf)2, formation of a benzyltitanium species is observed, which is converted cleanly into a ligand-CH-activated species (5-Ti).
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Affiliation(s)
- Sonja Batke
- Anorganisch-Chemisches Institut, Universität Heidelberg , Im Neuenheimer Feld 276, 69120 Heidelberg, Germany
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15
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Sietzen M, Wadepohl H, Ballmann J. A Novel Trisamidophosphine Ligand and Its Group(IV) Metal Complexes. Organometallics 2014. [DOI: 10.1021/om401018f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Malte Sietzen
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Joachim Ballmann
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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16
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Ballmann J, Pick F, Castro L, Fryzuk MD, Maron L. Cleavage of Carbon Monoxide Promoted by a Dinuclear Tantalum Tetrahydride Complex. Organometallics 2012. [DOI: 10.1021/om300759p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Joachim Ballmann
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver,
BC Canada, V6T 1Z1
| | - Fraser Pick
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver,
BC Canada, V6T 1Z1
| | - Ludovic Castro
- Université de Toulouse, INSA, UPS, LPCNO, 135 Avenue de Rangueil,
F-31077 Toulouse, France, and CNRS, LPCNO
UMR 5215, F-31077 Toulouse, France
| | - Michael D. Fryzuk
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver,
BC Canada, V6T 1Z1
| | - Laurent Maron
- Université de Toulouse, INSA, UPS, LPCNO, 135 Avenue de Rangueil,
F-31077 Toulouse, France, and CNRS, LPCNO
UMR 5215, F-31077 Toulouse, France
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