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Primary Phosphines and Phosphine Oxides with a Stereogenic Carbon Center Adjacent to the Phosphorus Atom: Synthesis and Anti-Markovnikov Radical Addition to Alkenes. ORGANICS 2021. [DOI: 10.3390/org2040023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Organophosphorus compounds with stereogenic phosphorus and carbon atoms have received increasing attention. In this regards, primary phosphines with a stereogenic carbon atom adjacent to the phosphorus atom were synthesized by the reduction in phosphonates and phosphonoselenoates with a binaphthyl group. Their oxidized products, i.e., phosphine oxides with a stereogenic tetrasubstituted carbon atom, were found to undergo BEt3-mediated radical addition to cyclohexene to give P-stereogenic secondary phosphine oxides with a diastereoselectivity of 91:9. The products were characterized by ordinary analytical methods, such as Fourier transform infrared spectroscopy; 1H, 13C, and 31P NMR spectroscopies; and mass spectroscopy. Computational studies on the phosphorus-centered radical species and the obtained product implied that the thermodynamically stable radical and the adduct may be formed as a major diastereomer. The radical addition to a range of alkenes took place in an anti-Markovnikov fashion to give P-stereogenic secondary phosphine oxides. A variety of functional groups in the alkenes were tolerated under the reaction conditions to afford secondary phosphine oxides in moderate yields. Primary phosphines with an alkenyl group, which were generated in situ, underwent intramolecular cyclization to give five- and six-membered cyclic phosphines in high yields after protection by BH3.
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Begum F, Ikram M, Twamley B, Baker RJ. Perfluorinated phosphine and hybrid P–O ligands for Pd catalysed C–C bond forming reactions in solution and on Teflon supports. RSC Adv 2019; 9:28936-28945. [PMID: 35528399 PMCID: PMC9071828 DOI: 10.1039/c9ra04863d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/08/2019] [Indexed: 11/21/2022] Open
Abstract
The synthesis of two types of phosphine ligands that feature perfluorinated ponytails is reported. A bidentate (RfCH2CH2)2PCH2CH2P(CH2CH2Rf)2 (Rf = CF3(CF2)n; n = 5, 7) and an alkoxyphosphine made by ring opening a fluorous epoxide, RfCH2CH(OH)CH2PR2 (Rf = CF3(CF2)7), have been prepared and spectroscopically characterised. The electronic effects of the fluorous chains have been elucidated from either the 1JPt–P or 1JP–Se coupling constants in Pt(ii) or phosphine selenide compounds. Whilst the bidentate phosphines do not give stable or active Pd catalysts, the hybrid ligand does allow Susuki, Heck and Sonogashira catalysis to be demonstrated with low catalyst loadings and good turnovers. Whilst a fluorous extraction methodology does not give good performance, the ligand can be adsorbed onto Teflon tape and for the Suzuki cross coupling reaction the catalytic system can be run 6 times before activity drops and this has been traced to oxidation of the ligand. Additionally the crystal structure of the hybrid phosphine oxide is reported and the non-covalent interactions discussed. Phosphine ligands containing a perfluorous ponytail can be sorbed onto Teflon tape and used as ligands for C–C cross coupling reactions with little leaching.![]()
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Affiliation(s)
- Farzana Begum
- School of Chemistry
- University of Dublin Trinity College
- Dublin 2
- Ireland
- Department of Chemistry
| | - Muhammad Ikram
- School of Chemistry
- University of Dublin Trinity College
- Dublin 2
- Ireland
- Department of Chemistry
| | - Brendan Twamley
- School of Chemistry
- University of Dublin Trinity College
- Dublin 2
- Ireland
| | - Robert J. Baker
- School of Chemistry
- University of Dublin Trinity College
- Dublin 2
- Ireland
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Gibbons SK, Xu Z, Hughes RP, Glueck DS, Rheingold AL. Chiral Bis(Phospholane) PCP Pincer Complexes: Synthesis, Structure, and Nickel-Catalyzed Asymmetric Phosphine Alkylation. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00284] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sarah K. Gibbons
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Zhiming Xu
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Russell P. Hughes
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - David S. Glueck
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Arnold L. Rheingold
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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Nobbs JD, Low CH, Stubbs LP, Wang C, Drent E, van Meurs M. Isomerizing Methoxycarbonylation of Alkenes to Esters Using a Bis(phosphorinone)xylene Palladium Catalyst. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00813] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- James D. Nobbs
- Institute of Chemical and Engineering Sciences, Jurong Island, Singapore 627833
| | - Choon Heng Low
- Institute of Chemical and Engineering Sciences, Jurong Island, Singapore 627833
| | - Ludger P. Stubbs
- Institute of Chemical and Engineering Sciences, Jurong Island, Singapore 627833
| | - Cun Wang
- Institute of Chemical and Engineering Sciences, Jurong Island, Singapore 627833
| | - Eite Drent
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, Einsteinweg
55, 2333 CC Leiden, The Netherlands
| | - Martin van Meurs
- Institute of Chemical and Engineering Sciences, Jurong Island, Singapore 627833
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Clough MC, Fiedler T, Bhuvanesh N, Gladysz JA. A phase based approach to insulated molecular wires: Diplatinum octatetraynediyl complexes bearing fluorous trialkylphosphine ligands. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.09.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
The synthesis, some of the properties and the applications of fluorous phosphines in biphasic, organometallic and organo-catalysis were reviewed.
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Affiliation(s)
| | - István T. Horváth
- Department of Biology and Chemistry
- City University of Hong Kong
- Kowloon
- China
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Tuba R, Brothers EN, Reibenspies JH, Bazzi HS, Gladysz JA. Crystal Structure and Computational Investigation of an Analogue of Grubbs’ Second Generation Catalyst with a Fluorous Phosphine. Inorg Chem 2012; 51:9943-9. [DOI: 10.1021/ic301434g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Robert Tuba
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Edward N. Brothers
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Joseph H. Reibenspies
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Hassan S. Bazzi
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
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Berven BM, Koutsantonis GA, Skelton BW, Trengove RD, White AH. Highly fluorous complexes of nickel, palladium and platinum: solubility and catalysis in high pressure CO2. Dalton Trans 2011; 40:4167-74. [PMID: 21387073 DOI: 10.1039/c0dt01709d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of Group 10 metal complexes [MXY(dfppp)], M = Ni, X, Y = Cl, Br, M = Pd, Pt, X, Y = Cl or CH(3), containing the recently reported highly fluorous diphosphine ligand, dfppp, 1,3-bis[di(fluoroponytail)phosphino]propane, {(p-F(13)C(6)C(6)H(4))(2)P}(2)(CH(2))(3) have been synthesised. They have been characterised by NMR, mass spectrometry and microanalysis, with two platinum complexes, [PtCl(2)(dfppp)] and [PtClMe(dfppp)], structurally characterised by single crystal X-ray diffraction studies. The highly fluorous nature of the ligands affords the complexes good supercritical CO(2) solubility as measured by supercritical fluid extraction (SFE), and has allowed for the copolymerisation of CO and ethylene using [PdClMe(dfppp)] as the catalyst precursor and CO(2) as the solvent. Additionally, PtCl(2) complexes of the new ligands dfppb, {(p-F(13)C(6)C(6)H(4))(2)P}(2)(CH(2))(4), and dfpop, {(p-F(13)C(6)C(6)H(4)O)(2)P}(2)(CH(2))(3), have also been prepared and characterised.
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Affiliation(s)
- Bradley M Berven
- Chemistry, School of Biomedical, Biomolecular and Chemical Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA, Australia, 6009
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Adams JJ, Lau A, Arulsamy N, Roddick DM. Acceptor PCP Pincer Iridium Chemistry: (CF3PCP)IrIII Coordination Properties. Organometallics 2011. [DOI: 10.1021/om1008633] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeramie J. Adams
- Department of Chemistry, Box 3838, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Ade Lau
- Department of Chemistry, Box 3838, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Navamoney Arulsamy
- Department of Chemistry, Box 3838, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Dean M. Roddick
- Department of Chemistry, Box 3838, University of Wyoming, Laramie, Wyoming 82071, United States
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Duncan D, Hope EG, Singh K, Stuart AM. A recyclable perfluoroalkylated PCP pincer palladium complex. Dalton Trans 2011; 40:1998-2005. [DOI: 10.1039/c0dt01004a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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da Costa RC, Jurisch M, Gladysz JA. Synthesis of fluorous sulfur/carbon/sulfur pincer ligands and palladium complexes: New catalyst precursors for the Heck reaction. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.11.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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da Costa RC, Hampel F, Gladysz J. Crystal structure of an unusual bis(fluorous phosphine) ruthenium(III) complex derived from a fluorous Grubbs’ catalyst. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.08.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Consorti CS, Hampel F, Gladysz J. Synthesis, structure, and reactivity of fluorous phosphorus/carbon/phosphorus pincer complexes derived from P(CH2)5P backbones. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2006.07.092] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Temperature-Controlled Catalyst Recycling: New Protocols Based upon Temperature-Dependent Solubilities of Fluorous Compounds and Solid/Liquid Phase Separations. TOP ORGANOMETAL CHEM 2006. [DOI: 10.1007/3418_043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Emnet C, Tuba R, Gladysz J. Convenient Modular Syntheses of Fluorous Secondary Phosphines and Selected Derivatives. Adv Synth Catal 2005. [DOI: 10.1002/adsc.200505145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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