1
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Szkop KM, Jupp AR, Razumkov H, Stephan DW. Avenue to phosphaalkenes from Ph 3GePCO. Dalton Trans 2020; 49:885-890. [PMID: 31859304 DOI: 10.1039/c9dt04590b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Reactions of Ph3GePCO with KP(t-Bu)2 and Ph3SiCl, or direct reaction with Ph3SiP(t-Bu)2 provides the (Z)- and (E)-isomers of the phosphaalkene (t-Bu2)PC(OSiPh3)P(GePh3) 2, respectively. These isomers interconvert thermally and photochemically, while 2 also undergoes silyl and phosphide exchange with silylphosphines, consistent with a mechanism involving the reversible silylphosphination of Ph3GePCO.
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Affiliation(s)
- Kevin M Szkop
- Department of Chemistry, University of Toronto, 80 St George St., Toronto, ON M5S 3H6, Canada.
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2
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Ohtsuki K, Walsgrove HTG, Hayashi Y, Kawauchi S, Patrick BO, Gates DP, Ito S. Diels-Alder reactions of 1-phosphabutadienes: a highly selective route to P[double bond, length as m-dash]C-substituted phosphacyclohexenes. Chem Commun (Camb) 2020; 56:774-777. [PMID: 31845681 DOI: 10.1039/c9cc08997g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Kinetically stabilized 1-phosphahaloprenes (2-halo-1-phosphabutadienes) as well as 1-phosphaisoprene undergo a hitherto unknown phospha-Diels-Alder dimerization of the P[double bond, length as m-dash]C-C[double bond, length as m-dash]C units upon heating. The [4+2] cyclodimerization is highly stereo- and regio-selective. The phosphaalkene-substituted phosphacyclohexene product is an unprecedented P(sp2),P(sp3) ligand that is of interest in polymer/materials science and catalysis.
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Affiliation(s)
- Kazuaki Ohtsuki
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113 Ookayama, Meguro, Tokyo 152-8552, Japan.
| | - Henry T G Walsgrove
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
| | - Yoshihiro Hayashi
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113 Ookayama, Meguro, Tokyo 152-8552, Japan.
| | - Susumu Kawauchi
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113 Ookayama, Meguro, Tokyo 152-8552, Japan.
| | - Brian O Patrick
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
| | - Derek P Gates
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
| | - Shigekazu Ito
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113 Ookayama, Meguro, Tokyo 152-8552, Japan.
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3
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Cabon Y, Ricard L, Frison G, Carmichael D. A Self‐Assembling Ligand Switch That Involves Hydroxide Addition to an sp
2
Hybridised Phosphorus Atom – A System Allowing OH
–
Mediated Uptake of [MCl
2
] (M = Pd, Pt) Centres. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yves Cabon
- Laboratoire de Chimie Moléculaire CNRS UMR 9168, Ecole Polytechnique 2 route de Saclay 91128 Palaiseau cedex France
| | - Louis Ricard
- Laboratoire de Chimie Moléculaire CNRS UMR 9168, Ecole Polytechnique 2 route de Saclay 91128 Palaiseau cedex France
| | - Gilles Frison
- Laboratoire de Chimie Moléculaire CNRS UMR 9168, Ecole Polytechnique 2 route de Saclay 91128 Palaiseau cedex France
| | - Duncan Carmichael
- Laboratoire de Chimie Moléculaire CNRS UMR 9168, Ecole Polytechnique 2 route de Saclay 91128 Palaiseau cedex France
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4
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5
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Shameem MA, Esfandiarfard K, Öberg E, Ott S, Orthaber A. Direct, Sequential, and Stereoselective Alkynylation of C,C-Dibromophosphaalkenes. Chemistry 2016; 22:10614-9. [PMID: 27310813 DOI: 10.1002/chem.201601955] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Indexed: 01/07/2023]
Abstract
The first direct alkynylation of C,C-dibromophosphaalkenes by a reaction with sulfonylacetylenes is reported. Alkynylation proceeds selectively in the trans position relative to the P substituent to afford bromoethynylphosphaalkenes. Owing to the absence of transition metals in the procedure, the previously observed conversion of dibromophosphaalkenes into phosphaalkynes through the phosphorus analog of the Fritsch-Buttenberg-Wiechell rearrangement is thus suppressed. The bromoethynylphosphaalkenes can subsequently be converted to C,C-diacetylenic, cross-conjugated phosphaalkenes by following a Sonogashira coupling protocol in good overall yields. By using the newly described method, full control over the stereochemistry at the P=C double bond is achieved. The substrate scope of this reaction is demonstrated for different dibromophosphaalkenes as well as different sulfonylacetylenes.
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Affiliation(s)
- Muhammad A Shameem
- Department of Chemistry - Ångström Laboratories, Molecular Inorganic Chemistry, Uppsala University, Box 523, 75120, Uppsala, Sweden
| | - Keyhan Esfandiarfard
- Department of Chemistry - Ångström Laboratories, Molecular Inorganic Chemistry, Uppsala University, Box 523, 75120, Uppsala, Sweden
| | - Elisabet Öberg
- Department of Chemistry - Ångström Laboratories, Molecular Inorganic Chemistry, Uppsala University, Box 523, 75120, Uppsala, Sweden
| | - Sascha Ott
- Department of Chemistry - Ångström Laboratories, Molecular Inorganic Chemistry, Uppsala University, Box 523, 75120, Uppsala, Sweden.
| | - Andreas Orthaber
- Department of Chemistry - Ångström Laboratories, Molecular Inorganic Chemistry, Uppsala University, Box 523, 75120, Uppsala, Sweden.
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6
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Dangling phosphine complexes: Phosphine exchange in pentacarbonyl tungsten complexes of bis(diphenylphosphinomethyl)phenylphosphine. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Ghalib M, Jones PG, Schulzke C, Sziebert D, Nyulászi L, Heinicke JW. π-Rich σ2P-Heterocycles: Bent η1-P- and μ2-P-Coordinated 1,3-Benzazaphosphole Copper(I) Halide Complexes. Inorg Chem 2015; 54:2117-27. [DOI: 10.1021/ic502367d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mohammed Ghalib
- Institut
für Biochemie − Anorganische Chemie, EMA-Universität Greifswald, 17487 Greifswald, Germany
| | - Peter G. Jones
- Institut
für Anorganische u. Analytische Chemie, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Carola Schulzke
- Institut
für Biochemie − Bioanorganische Chemie, EMA-Universität Greifswald, 17487 Greifswald, Germany
| | - Dénes Sziebert
- Department
of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1521 Budapest, Hungary
| | - László Nyulászi
- Department
of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1521 Budapest, Hungary
| | - Joachim W. Heinicke
- Institut
für Biochemie − Anorganische Chemie, EMA-Universität Greifswald, 17487 Greifswald, Germany
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8
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Ghalib M, Jones PG, Heinicke JW. Solvent-controlled lithiation of PC–N-heterocycles: Synthesis of mono- and bis(trimethylsilyl)-tert-butyl-dihydrobenzazaphospholes – A new type of highly bulky and basic phosphine ligands. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.04.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Ito S, Nakagawa T, Mikami K. Stereoselective synthesis, structural aspects, and NMR properties of stable C-fluorinated phosphaalkenes. Chem Commun (Camb) 2013; 49:9221-3. [PMID: 23995514 DOI: 10.1039/c3cc45237a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a stereoselective route to synthesize (E)-2-bromo-2-fluoro-1-(2,4,6-tri-t-butylphenyl)-2-phosphaethene. Configurationally and conformationally controlled 2-fluoro-1-phosphaethene [Mes*P=C(F)H; Mes* = 2,4,6-tBu3C6H2] and 2-fluoro-1,3-diphosphapropene [Mes*P=C(F)-PPh2] were synthesized and the NMR data, including relaxation parameters, were collected.
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Affiliation(s)
- Shigekazu Ito
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8552, Japan.
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10
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Niaz B, Iftikhar F, Kindermann MK, Jones PG, Heinicke J. Coplanar Tetracyclic π‐Excess σ
2
P Ligands. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300342] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Basit Niaz
- Institut für Biochemie (Anorganische Chemie), Ernst‐Moritz‐Arndt‐Universität Greifswald, Felix‐Hausdorff‐Str. 4, 17487 Greifswald, Germany, Fax: +49‐3834‐864377, http://www.mnf.uni‐greifswald.de/institute/institut‐fuer‐biochemie/anorganische‐chemie.html
- Department of Chemistry, Hazara University, 21120 Mansehra, Pakistan
| | - Fatima Iftikhar
- Institut für Biochemie (Anorganische Chemie), Ernst‐Moritz‐Arndt‐Universität Greifswald, Felix‐Hausdorff‐Str. 4, 17487 Greifswald, Germany, Fax: +49‐3834‐864377, http://www.mnf.uni‐greifswald.de/institute/institut‐fuer‐biochemie/anorganische‐chemie.html
- Department of Chemistry, Hazara University, 21120 Mansehra, Pakistan
| | - Markus K. Kindermann
- Institut für Biochemie (Anorganische Chemie), Ernst‐Moritz‐Arndt‐Universität Greifswald, Felix‐Hausdorff‐Str. 4, 17487 Greifswald, Germany, Fax: +49‐3834‐864377, http://www.mnf.uni‐greifswald.de/institute/institut‐fuer‐biochemie/anorganische‐chemie.html
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Postfach 3329, 38023 Braunschweig, Germany
| | - Joachim Heinicke
- Institut für Biochemie (Anorganische Chemie), Ernst‐Moritz‐Arndt‐Universität Greifswald, Felix‐Hausdorff‐Str. 4, 17487 Greifswald, Germany, Fax: +49‐3834‐864377, http://www.mnf.uni‐greifswald.de/institute/institut‐fuer‐biochemie/anorganische‐chemie.html
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11
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Ghalib M, Jones PG, Palm GJ, Heinicke JW. Phosphanyl-substituted π-excess σ2P heterocycles: Coordination behaviour of 2-di-tert-butylphosphanyl-1-neopentyl-1,3-benzazaphosphole towards CuCl, HgCl2 and [Rh(COD)2]BF4. RSC Adv 2013. [DOI: 10.1039/c3ra43706j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Ghalib M, Niaz B, Jones PG, Heinicke JW. σ2-P Ligands: convenient syntheses of N-methyl-1,3-benzazaphospholes. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.07.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Ito S, Zhai L, Mikami K. Combination of sp2- and sp3-Type Phosphorus Atoms for Gold Chemistry: Preparation, Structure, and Catalytic Activity of Gold Complexes That Bear Ligated 2-Silyl-1,3-diphosphapropenes. Chem Asian J 2011; 6:3077-83. [DOI: 10.1002/asia.201100310] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Indexed: 11/07/2022]
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14
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Wang S, Wang M, Wang L, Wang B, Li P, Yang J. CuI-catalyzed Suzuki coupling reaction of organoboronic acids with alkynyl bromides. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Fischer RC, Power PP. π-Bonding and the Lone Pair Effect in Multiple Bonds Involving Heavier Main Group Elements: Developments in the New Millennium. Chem Rev 2010; 110:3877-923. [DOI: 10.1021/cr100133q] [Citation(s) in RCA: 894] [Impact Index Per Article: 63.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Roland C. Fischer
- Technische Universität Graz, Stremayrgasse 16/IV, A-8010, Graz, Austria, and University of California, Department of Chemistry, One Shields Avenue, Davis, California 95616
| | - Philip P. Power
- Technische Universität Graz, Stremayrgasse 16/IV, A-8010, Graz, Austria, and University of California, Department of Chemistry, One Shields Avenue, Davis, California 95616
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16
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Adam MSS, Jones PG, Heinicke JW. Pyrido‐Annulated 1,3‐Azaphospholes: Synthesis of 1,3‐Azaphospholo[5,4‐
b
]pyridines and Preliminary Reactivity Studies. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000253] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mohamed Shaker S. Adam
- Institut für Biochemie – Anorganische Chemie, Ernst‐Moritz‐Arndt‐Universität Greifswald, Felix‐Hausdorff‐Str. 4, 17487 Greifswald, Germany, Fax: +49‐3834‐864377
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Joachim W. Heinicke
- Institut für Biochemie – Anorganische Chemie, Ernst‐Moritz‐Arndt‐Universität Greifswald, Felix‐Hausdorff‐Str. 4, 17487 Greifswald, Germany, Fax: +49‐3834‐864377
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17
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Septelean R, Nemes G, Escudié J, Silaghi-Dumitrescu I, Ranaivonjatovo H, Petrar P, Gornitzka H, Silaghi-Dumitrescu L, Saffon N. vic-Dichlorodiphosphapropenes - Synthesis and Coordination Ability. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200801034] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Okazaki M, Hayashi A, Fu CF, Liu ST, Ozawa F. Synthesis, Structures, and Reactions of Dirhodium Complexes Bearing a 1,2-Diphenyl-3,4-diphosphinidenecyclobutene Ligand (DPCB). Organometallics 2009. [DOI: 10.1021/om8010799] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Masaaki Okazaki
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Akito Hayashi
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Ching-Feng Fu
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Shiuh-Tzung Liu
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Fumiyuki Ozawa
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan, and Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
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19
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Aluri BR, Kindermann MK, Jones PG, Dix I, Heinicke J. Bulky N-Substituted 1,3-Benzazaphospholes: Access via Pd-Catalyzed C−N and C−P Cross Coupling, Lithiation, and Conversion to Novel P═C−PtBu2 Hybrid Ligands. Inorg Chem 2008; 47:6900-12. [DOI: 10.1021/ic800430f] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bhaskar Reddy Aluri
- Institut für Biochemie - Anorganische Chemie Ernst-Moritz-Arndt-Universität Greifswald, Felix-Hausdorff-Str. 4, D-17487 Greifswald, Germany, Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany, and Institut für Anorganische Chemie, Universität Göttingen,Tammannstr. 4, 37077 Göttingen, Germany
| | - Markus K. Kindermann
- Institut für Biochemie - Anorganische Chemie Ernst-Moritz-Arndt-Universität Greifswald, Felix-Hausdorff-Str. 4, D-17487 Greifswald, Germany, Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany, and Institut für Anorganische Chemie, Universität Göttingen,Tammannstr. 4, 37077 Göttingen, Germany
| | - Peter G. Jones
- Institut für Biochemie - Anorganische Chemie Ernst-Moritz-Arndt-Universität Greifswald, Felix-Hausdorff-Str. 4, D-17487 Greifswald, Germany, Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany, and Institut für Anorganische Chemie, Universität Göttingen,Tammannstr. 4, 37077 Göttingen, Germany
| | - Ina Dix
- Institut für Biochemie - Anorganische Chemie Ernst-Moritz-Arndt-Universität Greifswald, Felix-Hausdorff-Str. 4, D-17487 Greifswald, Germany, Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany, and Institut für Anorganische Chemie, Universität Göttingen,Tammannstr. 4, 37077 Göttingen, Germany
| | - Joachim Heinicke
- Institut für Biochemie - Anorganische Chemie Ernst-Moritz-Arndt-Universität Greifswald, Felix-Hausdorff-Str. 4, D-17487 Greifswald, Germany, Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany, and Institut für Anorganische Chemie, Universität Göttingen,Tammannstr. 4, 37077 Göttingen, Germany
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Ito S, Freytag M, Liang H, Nishide K, Yoshifuji M. Design, Synthesis, and Application of Phosphaalkenes to Unique Palladium and Gold Catalysts. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500701764924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Shigekazu Ito
- a Department of Chemistry, Graduate School of Science , Tohoku University , Aoba, Sendai, Japan
| | - Matthias Freytag
- a Department of Chemistry, Graduate School of Science , Tohoku University , Aoba, Sendai, Japan
| | - Hongze Liang
- a Department of Chemistry, Graduate School of Science , Tohoku University , Aoba, Sendai, Japan
| | - Katsunori Nishide
- a Department of Chemistry, Graduate School of Science , Tohoku University , Aoba, Sendai, Japan
| | - Masaaki Yoshifuji
- a Department of Chemistry, Graduate School of Science , Tohoku University , Aoba, Sendai, Japan
- b Department of Chemistry , The University of Alabama , Tuscaloosa, AL, USA
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21
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Aluri B, Kindermann M, Jones P, Heinicke J. Sterically and Polarity-Controlled Reactions oftBuLi with PCH-NR Heterocycles: Novel Heterocyclic P- and P,O-Ligands and Preliminary Tests in Transition-Metal Catalysis. Chemistry 2008; 14:4328-35. [DOI: 10.1002/chem.200702016] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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22
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Lee JJ, Yang FZ, Lin YF, Chang YC, Yu KH, Chang MC, Lee GH, Liu YH, Wang Y, Liu ST, Chen JT. Unsymmetrical bidentate ligands of α-aminoaldimines leading to sterically controlled selectivity of geometrical isomerism in square planar coordination. Dalton Trans 2008:5945-56. [DOI: 10.1039/b805674a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Nagahora N, Sasamori T, Watanabe Y, Furukawa Y, Tokitoh N. Kinetically Stabilized 1,1′-Bis[(E)-diphosphenyl]ferrocenes: Syntheses, Structures, Properties, and Reactivity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.1884] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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24
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Preparation and X-ray analyses of siloxane-bridged acyclic and 8-membered cyclic phosphaethenes. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2006.04.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Freytag M, Ito S, Yoshifuji M. Coordination Behavior of Sterically Protected Phosphaalkenes on the AuCl Moiety Leading to Catalytic 1,6-Enyne Cycloisomerization. Chem Asian J 2006; 1:693-700. [PMID: 17441110 DOI: 10.1002/asia.200600155] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Mes*-substituted 2,3-dimethyl-1,4-diphosphabuta-1,3-diene, 1,2-diphenyl-3,4-diphosphinidenecyclobutene, 2,2-bis(methylsulfanyl)-1-phosphaethene, and 3,3-diphenyl-1,3-diphosphapropenes (Mes* = 2,4,6-tri-tert-butylphenyl) were employed as P ligands of gold(I) complexes. The (E,E)-2,3-dimethyl-1,4-diphosphabuta-1,3-diene functioned as a P2 ligand for digold(I) complex formation with or without intramolecular Au-Au contact, which depends on the conformation of the 1,3-diphosphabuta-1,3-diene. The 1,2-diphenyl-3,4-diphosphinidenecyclobutene, which has a rigid s-cis P=C-C=P skeleton, afforded the corresponding digold(I) complexes with a slight distortion of the planar diphosphinidenecyclobutene framework and intramolecular Au-Au contact. In the case of the 2,2-bis(methylsulfanyl)-1-phosphaethene, only the phosphorus atom coordinated to gold, and the sulfur atom showed almost no intra- or intermolecular coordination to gold. On the other hand, the 1,3-diphosphapropenes behaved as nonequivalent P2 ligands to afford the corresponding mono- and digold(I) complexes. Some phosphaalkene-gold(I) complexes showed catalytic activity for 1,6-enyne cycloisomerization without cocatalysts such as silver hexafluoroantimonate.
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Affiliation(s)
- Matthias Freytag
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan
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26
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Ozawa F, Yoshifuji M. Catalytic applications of transition-metal complexes bearing diphosphinidenecyclobutenes (DPCB). Dalton Trans 2006:4987-95. [PMID: 17060985 DOI: 10.1039/b610327h] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation and characterization of sterically protected diphosphinidenecyclobutenes bearing two two-coordinate phosphorus atoms are described from the viewpoint of the development of a novel type of bidentate ligand for transition-metal complexes. They form complexes with group 6 metals such as chromium, molybdenum and tungsten, group 8 metals such as ruthenium, group 10 metals such as palladium and platinum, and group 11 metals such as copper and gold. Some of them can be used as catalysts for synthetic reactions such as cross-coupling of the Sonogashira type, Suzuki-Miyaura coupling, Ullmann coupling, Kosugi-Migita-Stille coupling, cyanation, polymerization of ethylene, dehydrogenative hydrosilylation of ketones, hydroamination of 1,3-butadienes, and direct alkylation or amination of allylic alcohols of Tsuji-Trost reactions.
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Affiliation(s)
- Fumiyuki Ozawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-001, Japan.
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