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Devillard M, Ehlers A, Siegler MA, van der Vlugt JI. Selective Carbanion-Pyridine Coordination of a Reactive P,N Ligand to Rh I. Chemistry 2019; 25:3875-3883. [PMID: 30600857 PMCID: PMC6519283 DOI: 10.1002/chem.201805504] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/12/2018] [Indexed: 01/12/2023]
Abstract
Ligands with reactive carbon sites in the periphery of a metal center have emerged as a powerful approach for metal-ligand bond activation. These reactive carbon sites are commonly generated by deprotonation strategies. Carbon-silicon bond cleavage is a potential alternative to access such constructs. Herein, the monodesilylation of bis-silyl-substituted P,N scaffold PNSi2 in the coordination sphere of [RhI (Cl)(CO)(PNSi2 )] (1) with sodium azide is disclosed. This affords a unique dinucleating anionic κ2 -C,N-κ1 -P ligand with a carbanionic methine carbon atom directly bound to rhodium as part of a four-membered Rh-N-C-C rhodacycle. This dimer undergoes meta-pyridine C-H activation facilitated by weak bases, which leads to a desymmetrization of the system and provides a σ,π-bridging 3-pyridyl fragment bound to RhI . The facile Si-C cleavage strategy may pave the way to studying the reactivity and functionalization of a variety of κ2 -C,N-coordinated pyridine scaffolds for selective transformations.
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Affiliation(s)
- Marc Devillard
- van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Andreas Ehlers
- van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
- Department of ChemistryUniversity of Johannesburg, P.O. Box 254Auckland ParkJohannesburgSouth Africa
| | - Maxime A. Siegler
- Department of ChemistryJohns Hopkins University3400 N Charles StreetBaltimoreMD21218USA
| | - Jarl Ivar van der Vlugt
- van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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2
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Kuprat M, Schulz A, Thomas M, Villinger A. Synthesis and characterization of a stable non-cyclic bis(amino)arsenium cation. CAN J CHEM 2018. [DOI: 10.1139/cjc-2017-0420] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The reaction of Li[Mes*NH] (1, Mes* = 2,4,6-tri-tert-butylphenyl) with aminoarsane Mes*N(H)AsCl2 (2, Mes* = 2,4,6-t-Bu3C6H2) at −80 °C resulted in the formation of bisamino(chloro)arsane (Mes*NH)2AsCl (3Cl) by elimination of LiCl. 3Cl reacted with the Lewis acids such as AlCl3, GaCl3, and Ag[X] (X = AsF6−, OTf−, BF4−; OTf = trifluoromethanesulfonate = OSO2CF3−) upon chloride ion abstraction to give salts bearing the cation [(Mes*NH)2As]+ (3[X]; X = AsF6−, OTf−, BF4−, ECl4; E = Al, Ga). 3+ represents the first NH-functionalized acyclic bis(amino)arsenium cation. The formation of the salts bearing 3+ could also be observed in the reaction of cyclo-1,3-diarsa-2,4-diazane [ClAs(μ-NMes*)]2 (4) with Lewis acids (AlCl3, GaCl3) in the presence of proton sources in solution. All presented salts 3[X] were stable at room temperature and fully characterized.
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Affiliation(s)
- Marcus Kuprat
- Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Axel Schulz
- Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Max Thomas
- Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
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Henne FD, Dickschat AT, Hennersdorf F, Feldmann KO, Weigand JJ. Synthesis of Selected Cationic Pnictanes [LnPnX3–n]n+ (L = Imidazolium-2-yl; Pn = P, As; n = 1–3) and Replacement Reactions with Pseudohalogens. Inorg Chem 2015; 54:6849-61. [DOI: 10.1021/acs.inorgchem.5b00765] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- F. D. Henne
- Department
of Chemistry and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - A. T. Dickschat
- Department
of Chemistry and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - F. Hennersdorf
- Department
of Chemistry and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - K.-O. Feldmann
- Department
of Chemistry and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - J. J. Weigand
- Department
of Chemistry and Food Chemistry, TU Dresden, 01062 Dresden, Germany
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Limburg C, Lönnecke P, Gómez-Ruiz S, Hey-Hawkins E. Synthesis of Racemic Aminoalkylferrocenyldichlorophosphanes and -dialkylphosphonites and Their Conversion to Primary Phosphanes. Organometallics 2010. [DOI: 10.1021/om1004012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carolin Limburg
- Institut für Anorganische
Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig,
Germany
| | - Peter Lönnecke
- Institut für Anorganische
Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig,
Germany
| | - Santiago Gómez-Ruiz
- Institut für Anorganische
Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig,
Germany
- Departamento de Química Inorgánica y Analítica, ESCET, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Evamarie Hey-Hawkins
- Institut für Anorganische
Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig,
Germany
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5
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Smith D, Batsanov A, Miqueu K, Sotiropoulos JM, Apperley D, Howard J, Dyer P. A Truly Multifunctional Heterocycle: Iminophosphorane, N,P Chelate, and Dihydropyridine. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803373] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Smith DA, Batsanov AS, Miqueu K, Sotiropoulos JM, Apperley DC, Howard JAK, Dyer PW. A truly multifunctional heterocycle: iminophosphorane, N,P chelate, and dihydropyridine. Angew Chem Int Ed Engl 2008; 47:8674-7. [PMID: 18833562 DOI: 10.1002/anie.200803373] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dan A Smith
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
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Tschirschwitz S, Lönnecke P, Hey-Hawkins E. Aminoalkylferrocenyldichlorophosphanes: facile synthesis of versatile chiral starting materials. Dalton Trans 2007:1377-82. [PMID: 17387397 DOI: 10.1039/b617257a] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of racemic and optically pure aminoalkylferrocenyldichlorophosphanes has been prepared by reaction of phosphorus trichloride with the corresponding lithiated aminoalkylferrocene precursors. Crystal structures of racemic 1-dichlorophosphanyl-2-N,N-dimethylaminomethylferrocene, racemic 1-dichlorophosphanyl-2-N,N-dimethylaminomethyl-3-triphenylsilylferrocene and (S)-N,N-dimethyl-1-[(R)-2-(dichlorophosphanyl)ferrocenyl]ethylamine reveal short intramolecular N[dot dot dot]P distances, which are suggestive of weak N --> P dative bonds. The aminoalkylferrocenyldichlorophosphanes can be used for the preparation of the corresponding primary phosphanes, one of which was characterised by X-ray crystallography. Optically pure (R)-N,N-dimethyl-1-[(S)-2-(phosphanyl)ferrocenyl]ethylamine can easily be lithiated twice to give the first enantiomerically pure lithium-phosphorus closo cluster compound, which was also structurally characterised.
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Affiliation(s)
- Steffen Tschirschwitz
- Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, Leipzig, Germany
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Boeré RT, Masuda JD, Tran P. Synthesis, crystal structure and DFT calculations on 2,6-diisopropylphenylcopper; its use in the preparation of dichloro-2,6-diisopropylphenylphosphine. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Heavier alkali metal complexes of the bulky alkyl ligand 2-(bis(trimethylsilyl)methyl)-6-methylpyridine: Crystal structures of [{6-Me(2 Pyr)}(Me3Si)2CNa(pmdta)] and [{6-Me(2-Pyr)}(Me3Si)2CK]∞. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.04.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Organometallic Complexes of the η2 (N, C)-Coordinated Derivatives of Pyridine. ADVANCES IN HETEROCYCLIC CHEMISTRY 2005. [DOI: 10.1016/s0065-2725(04)88002-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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11
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van den Ancker TR, Engelhardt LM, Henderson MJ, Jacobsen GE, Raston CL, Skelton BW, White AH. Syntheses and structures of highly hindered N-functionalised alkyl and amido group 12 complexes MR2 (M=Zn, Cd, and Hg), [MRCl]2 (M=Zn and Hg). J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.03.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Andrews PC, McGrady JE, Nichols PJ. Decomposition of [2-Pyr(SiMe3)2C]2SbCl into the Stibaalkene [2-Pyr(SiMe3)2C−SbC(SiMe3)2-Pyr]: Solid, Solution, and ab Initio Study. Organometallics 2004. [DOI: 10.1021/om034229+] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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