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Bîrzoi RM, Bugnariu D, Gimeno RG, Lungu D, Zota V, Daniliuc C, Jones PG, Benkõ Z, Könczöl L, Nyulászi L, Bartsch R, du Mont WW, Niecke E. Imino-bridged bisphosphaalkenes (2,4-diphospha-3-azapentadienes). Chemistry 2010; 16:4843-51. [PMID: 20235247 DOI: 10.1002/chem.200903166] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Deprotonation of aminophosphaalkenes (RMe(2)Si)(2)C=PN(H)(R') (R=Me, iPr; R'=tBu, 1-adamantyl (1-Ada), 2,4,6-tBu(3)C(6)H(2) (Mes*)) followed by reactions of the corresponding Li salts Li[(RMe(2)Si)(2)C=P(M)(R')] with one equivalent of the corresponding P-chlorophosphaalkenes (RMe(2)Si)(2)C=PCl provides bisphosphaalkenes (2,4-diphospha-3-azapentadienes) [(RMe(2)Si)(2)C=P](2)NR'. The thermally unstable tert-butyliminobisphosphaalkene [(Me(3)Si)(2)C=P](2)NtBu (4 a) undergoes isomerisation reactions by Me(3)Si-group migration that lead to mixtures of four-membered heterocyles, but in the presence of an excess amount of (Me(3)Si)(2)C=PCl, 4 a furnishes an azatriphosphabicyclohexene C(3)(SiMe(3))(5)P(3)NtBu (5) that gave red single crystals. Compound 5 contains a diphosphirane ring condensed with an azatriphospholene system that exhibits an endocylic P=C double bond and an exocyclic ylidic P((+))-C((-))(SiMe(3))(2) unit. Using the bulkier iPrMe(2)Si substituents at three-coordinated carbon leads to slightly enhanced thermal stability of 2,4-diphospha-3-azapentadienes [(iPrMe(2)Si)(2)C=P](2)NR' (R'=tBu: 4 b; R'=1-Ada: 8). According to a low-temperature crystal-structure determination, 8 adopts a non-planar structure with two distinctly differently oriented P=C sites, but (31)P NMR spectra in solution exhibit singlet signals. (31)P NMR spectra also reveal that bulky Mes* groups (Mes*=2,4,6-tBu(3)C(6)H(2)) at the central imino function lead to mixtures of symmetric and unsymmetric rotamers, thus implying hindered rotation around the P-N bonds in persistent compounds [(RMe(2)Si)(2)C=P](2)NMes* (11 a, 11 b). DFT calculations for the parent molecule [(H(3)Si)(2)C=P](2)NCH(3) suggest that the non-planar distortion of compound 8 will have steric grounds.
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Affiliation(s)
- Roxana M Bîrzoi
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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52
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Nakajima Y, Nakatani M, Hayashi K, Shiraishi Y, Takita R, Okazaki M, Ozawa F. Synthesis and structures of platinum diphenylacetylene and dithiolate complexes bearing diphosphinidenecyclobutene ligands (DPCB-Y). NEW J CHEM 2010. [DOI: 10.1039/c0nj00118j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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53
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Bates JI, Dugal-Tessier J, Gates DP. Phospha-organic chemistry: from molecules to polymers. Dalton Trans 2009; 39:3151-9. [PMID: 20449439 DOI: 10.1039/b918938f] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Many parallels have been drawn between the chemistry of low-valent phosphorus and carbon. This Perspective is intended to highlight some emerging reactivity of phosphaalkenes, that is phospha-analogues of alkenes, in the areas of asymmetric catalysis and polymer science.
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Affiliation(s)
- Joshua I Bates
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
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Houdard R, Mézailles N, Le Goff XF, Le Floch P. Platinum(0)-Catalyzed Intramolecular Addition of a C−H Bond onto the P═C Bond of a Phosphaalkene. Organometallics 2009. [DOI: 10.1021/om9006664] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Romaric Houdard
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
| | - Nicolas Mézailles
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
| | - Xavier-Frederic Le Goff
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
| | - Pascal Le Floch
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France
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55
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Tsutsumi H, Sunada Y, Shiota Y, Yoshizawa K, Nagashima H. Nickel(II), Palladium(II), and Platinum(II) η3-Allyl Complexes Bearing a Bidentate Titanium(IV) Phosphinoamide Ligand: A Ti←M2 Dative Bond Enhances the Electrophilicity of the π-Allyl Moiety. Organometallics 2009. [DOI: 10.1021/om8011085] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hironori Tsutsumi
- Institute for Materials Chemistry and Engineering and Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Yusuke Sunada
- Institute for Materials Chemistry and Engineering and Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering and Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering and Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Hideo Nagashima
- Institute for Materials Chemistry and Engineering and Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
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56
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Shaffer A, Schmidt JA. A Versatile Methodology for the Synthesis of α,β-Unsaturated 3-Iminophosphines. Chemistry 2009; 15:2662-73. [DOI: 10.1002/chem.200802310] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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57
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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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58
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59
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Takita R, Takada Y, Jensen RS, Okazaki M, Ozawa F. Synthesis and Ligand Properties of 1-Phosphaethenyl-2-phosphanylferrocenes. Organometallics 2008. [DOI: 10.1021/om8008316] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryo Takita
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuko Takada
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Rader S. Jensen
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Masaaki Okazaki
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Fumiyuki Ozawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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61
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Dugal-Tessier J, Dake G, Gates D. Chiral Ligand Design: A Bidentate Ligand Incorporating an Acyclic Phosphaalkene. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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62
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Dugal-Tessier J, Dake G, Gates D. Chiral Ligand Design: A Bidentate Ligand Incorporating an Acyclic Phosphaalkene. Angew Chem Int Ed Engl 2008; 47:8064-7. [DOI: 10.1002/anie.200802949] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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63
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Müller TE, Hultzsch KC, Yus M, Foubelo F, Tada M. Hydroamination: Direct Addition of Amines to Alkenes and Alkynes. Chem Rev 2008; 108:3795-892. [PMID: 18729420 DOI: 10.1021/cr0306788] [Citation(s) in RCA: 1644] [Impact Index Per Article: 102.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas E. Müller
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kai C. Hultzsch
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Miguel Yus
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Francisco Foubelo
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuki Tada
- CAT Catalytic Center, ITMC, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany, Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854-8087, Departamento de Química Orgánica, Universidad de Alicante, E-03080 Alicante, Spain, and Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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64
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Arcadi A. Alternative synthetic methods through new developments in catalysis by gold. Chem Rev 2008; 108:3266-325. [PMID: 18651778 DOI: 10.1021/cr068435d] [Citation(s) in RCA: 1346] [Impact Index Per Article: 84.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Antonio Arcadi
- Department of Chemistry, Chemical Engineering and Materials, University of L'Aquila, via Vetoio, 67010 Coppito (AQ), Italy.
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65
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Baiget L, Ayoubi RE, Ranaivonjatovo H, Escudié J, Gornitzka H. Chlorophosphaalkenyl- and chloroalkenylstibanes. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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66
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Shaffer AR, Schmidt JAR. Palladium(II) 3-Iminophosphine Complexes as Intermolecular Hydroamination Catalysts for the Formation of Imines and Enamines. Organometallics 2008. [DOI: 10.1021/om701106q] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew R. Shaffer
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft St. MS 602, Toledo, Ohio 43606-3390
| | - Joseph A. R. Schmidt
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft St. MS 602, Toledo, Ohio 43606-3390
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67
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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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68
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Seshu Babu N, Mohan Reddy K, Sai Prasad P, Suryanarayana I, Lingaiah N. Intermolecular hydroamination of vinyl arenes using tungstophosphoric acid as a simple and efficient catalyst. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.08.120] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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69
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Hayashi A, Okazaki M, Ozawa F, Tanaka R. Synthesis, Structures, and Catalytic Properties of Late-Transition-Metal 2,6-Bis(2-phosphaethenyl)pyridine Complexes. Organometallics 2007. [DOI: 10.1021/om700488y] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akito Hayashi
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Masaaki Okazaki
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Fumiyuki Ozawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Rika Tanaka
- X-Ray Structural Analysis Laboratory, Graduate School of Engineering, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
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70
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Toyota K, Horikawa K, Jensen RS, Omori K, Kawasaki S, Ito S, Yoshifuji M, Morita N. Improved Preparative Method for 1,2-Diaryl-3,4-diphosphinidenecyclobutenes and Its Application to the Studies of 1,2-Bis(arylthienyl)-3,4-diphosphinidenecyclobutenes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.1580] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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71
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Smolensky E, Kapon M, Eisen MS. Intermolecular Hydroamination of Methylenecyclopropane Catalyzed by Group IV Metal Complexes. Organometallics 2007. [DOI: 10.1021/om700455e] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elena Smolensky
- Schulich Faculty of Chemistry and Institute of Catalysis Science and Technology, TechnionIsrael Institute of Technology, Haifa 32000, Israel
| | - Moshe Kapon
- Schulich Faculty of Chemistry and Institute of Catalysis Science and Technology, TechnionIsrael Institute of Technology, Haifa 32000, Israel
| | - Moris S. Eisen
- Schulich Faculty of Chemistry and Institute of Catalysis Science and Technology, TechnionIsrael Institute of Technology, Haifa 32000, Israel
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72
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Alvarez A, Macías R, Fabra MJ, Martín ML, Lahoz FJ, Oro LA. Square-Planar Rhodium(I) Complexes Partnered with [arachno-6-SB9H12]-: A Route toward the Synthesis of New Rhodathiaboranes and Organometallic/Thiaborane Salts. Inorg Chem 2007; 46:6811-26. [PMID: 17625837 DOI: 10.1021/ic700648z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Treatment of [RhCl(eta4-diene)]2 (diene = nbd, cod) with the N-heterocyclic ligands 2,2'-bipyridine (bpy), 4,4'-dimethyl-2,2'-bipyridine (Me2bpy), 1,10-phenanthroline (phen), and pyridine (py) followed by addition of Cs[arachno-6-SB9H12] affords the corresponding salts, [Rh(eta4-diene)(L2)][SB9H12] [diene = cod, L2 = bpy (1), Me2bpy (3), phen (5), (py)2 (7); diene = nbd, L2 = bpy (2), Me2bpy (4), phen (6), (py)2 (8)]. These compounds are characterized by NMR spectroscopy and mass spectrometry, and in addition, the cod-Rh species 1 and 3 are studied by X-ray diffraction analysis. These saltlike reagents are stable in the solid state, but in solution the rhodium(I) cations, [Rh(eta4-diene)(L2)]+, react with the polyhedral anion [SB9H12]- leading to a chemistry that is controlled by the d8 transition element chelates. The nbd-Rh(I) complexes react faster than the cod-Rh(I) counterparts, leading, depending on the conditions, to the synthesis of new rhodathiaboranes of general formulas [8,8-(L2)-nido-8,7-RhSB9H10] [L2 = bpy (9), Me2bpy (10), phen (11), (py)2 (12)] and [8,8-(L2)-8-(L')-nido-8,7-RhSB9H10] [L' = PPh3, L2 = bpy (13), Me2bpy (14), phen (15); L' = NCCH3, L2 = bpy (16), Me2bpy (17), phen (18)]. Compound 13 is characterized by X-ray diffraction analysis confirming the 11-vertex nido-structure of the rhodathiaborane analogues 14-18. In dichloromethane, 1 and 3 yield mixtures that contain the 11-vertex rhodathiaboranes 9 and 10 together with new species. In contrast, the cod-Rh(I) reagent 5 affords a single compound, which is proposed to be an organometallic rhodium complex bound exo-polyhedrally to the thiaborane cage. In the presence of H2(g) and stoichiometric amounts of PPh3, the cod-Rh(I) reagents, 1, 3, and 5, afford the salts [Rh(H)2(L2)(PPh3)2][SB9H12] [L2 = bpy (19), Me2bpy (20), phen (21)]. Similarly, in an atmosphere of CO(g) and in the presence of PPh3, compounds 1-6 afford [Rh(L2)(PPh3)2(CO)][SB9H12] (L2 = bpy (22), Me2bpy (23), phen (24)]. The structures of 19 and 24 are studied by X-ray diffraction analysis. The five-coordinate complexes [Rh(L2)(PPh3)2(CO)]+ undergo PPh3 exchange in a process that is characterized as dissociative. The observed differences in the reactivity of the nbd-Rh(I) salts versus the cod-Rh(I) analogues are rationalized on the basis of the higher kinetic lability of the nbd ligand and its faster hydrogenation relative to the cod diene.
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Affiliation(s)
- Alvaro Alvarez
- Departamento de Química InorgAnica, Instituto Universitario de CatAlisis Homogénea, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-Consejo Superior de Investigaciones Científicas, Zaragoza, Spain
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73
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Michaux J, Terrasson V, Marque S, Wehbe J, Prim D, Campagne JM. Intermolecular FeCl3-Catalyzed Hydroamination of Styrenes. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700023] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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74
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Qin H, Yamagiwa N, Matsunaga S, Shibasaki M. Bismuth- and Hafnium-Catalyzed Hydroamination of Vinyl Arenes with Sulfonamides, Carbamates, and Carboxamides. Chem Asian J 2007; 2:150-4. [PMID: 17441148 DOI: 10.1002/asia.200600284] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Catalytic intermolecular hydroamination of vinyl arenes is described. Our initial investigation revealed that a Bi(OTf)3/[Cu(CH3CN)4]PF6 system previously developed for catalytic intermolecular hydroamination of 1,3-dienes was suitable for hydroamination of a styrene with sulfonamides, but the substrate generality of this system was unsatisfactory. Several metals were screened to expand the substrate scope, and a new Hf(OTf)4/[Cu(CH3CN)4]PF6 system was determined to be highly suitable. The combination of Hf(OTf)4 and [Cu(CH3CN)4]PF6 efficiently promoted the hydroamination of various vinyl arenes, including less-reactive vinyl arenes with electron-withdrawing groups. This strategy was applied to sulfonamides, carbamates, and carboxamides, and products were obtained in up to 99% yield with 0.3-10 mol % catalyst loading.
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Affiliation(s)
- Hongbo Qin
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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75
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Jensen RS, Umeda K, Okazaki M, Ozawa F, Yoshifuji M. Synthesis and catalytic properties of cationic palladium(II) and rhodium(I) complexes bearing diphosphinidinecyclobutene ligands. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2006.04.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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76
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Shen Y, Wang G. Synthesis of α-fluoro-β-trifluoromethyl alka-2,4-dienes. HETEROATOM CHEMISTRY 2007. [DOI: 10.1002/hc.20284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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77
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Nakamura A, Kawasaki S, Toyota K, Yoshifuji M. Reactions of 1,2-di(2-thienyl)-3,4-bis[(2,4,6-tri-t-butylphenyl)phosphinidene]cyclobutene. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2006.08.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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78
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Deschamps B, Le Goff X, Ricard L, Le Floch P. Phosphaalkenes palladium(II) complexes in the suzuki and sonogashira cross-coupling reactions. HETEROATOM CHEMISTRY 2007. [DOI: 10.1002/hc.20307] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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79
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Miyake Y, Isomura E, Iyoda M. Selective Hydrosilylation of 1-Alkynes Using Iridium Catalyst with Biphosphinine Ligand. CHEM LETT 2006. [DOI: 10.1246/cl.2006.836] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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80
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Abstract
The reaction of phospholide ions with imidoyl chlorides in the presence of tBuOK gives the alpha-iminophospholides that are isolated as their trimethylstannyl derivatives. These derivatives in turn react with metal chlorides to give complexes of the title ligands. A DFT study shows that substantial electronic delocalization takes place between the imino group and the phospholyl ring in these anions. The X-ray crystal structure of one stannylphosphole shows a highly pyramidal phosphorus atom (sum of angles = ca. 280 degrees ). A tetrameric copper complex has also been structurally characterized.
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Affiliation(s)
- Joanna Grundy
- UCR-CNRS Joint Research Chemistry Laboratory, Department of Chemistry, University of California Riverside, Riverside, California 92521-0403, USA
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81
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Ionkin AS, Marshall WJ, Adelman DJ, Shoe AL, Spence RE, Xie T. Nitro-substituted iron(II) tridentate bis(imino)pyridine complexes as high-temperature catalysts for the production of α-olefins. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21360] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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82
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Deschamps E, Deschamps B, Laure Dormieux J, Ricard L, Mézailles N, Le Floch P. 4,6-Bis(supermesitylphosphanylidenemethyl)dibenzofuran. Synthesis, X-ray structure and reactivity towards group 11 metals. Dalton Trans 2006:594-602. [PMID: 16402146 DOI: 10.1039/b508678g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New kinetically stabilized mono- and bis-phosphaalkene ligands (2 and 3, respectively) were synthesized via the phospha-Wittig approach. Ligand 3 was characterized by X-ray diffraction. The coordinating behaviour of the bidentate ligand was investigated towards group 11 metal centers in order to test its capacity to bind two coordination sites located in a trans-fashion. The [Au(3)][BF4], [Ag(3)(H2O)][BF4] and [Cu(3)(CH3CN)][BF4] complexes 4 , 5 and 6, respectively, were characterized by X-ray diffraction. The peculiar geometries of 4 and 6 were rationalized by means of DFT calculations.
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Affiliation(s)
- Eliane Deschamps
- Laboratoire Hétéroéléments et Coordination, Department of Chemistry, UMR CNRS 7653, DCPH, Ecole Polytechnique, 91128, Palaiseau Cedex, France
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83
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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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84
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Jensen RS, Gajare AS, Toyota K, Yoshifuji M, Ozawa F. A convenient procedure for palladium catalyzed cyanation using a unique bidentate phosphorus ligand. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.10.052] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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85
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Tobisch S. Organolanthanide-Mediated Intermolecular Hydroamination of 1,3-Dienes: Mechanistic Insights from a Computational Exploration of Diverse Mechanistic Pathways for the Stereoselective Hydroamination of 1,3-Butadiene with a Primary Amine Supported by anansa-Neodymocene-Based Catalyst. Chemistry 2005; 11:6372-85. [PMID: 16086337 DOI: 10.1002/chem.200500355] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The complete catalytic reaction course for the organolanthanide-mediated intermolecular hydroamination of 1,3-butadiene and n-propylamine by an archetypical [Me2Si(eta5-Me4C5)2NdCH(SiMe3)2] precatalyst was critically scrutinized by employing a reliable gradient-corrected DFT method. A free-energy profile of the overall reaction is presented that is based on the thorough characterization of all crucial elementary steps for a tentative catalytic cycle. A computationally verified, revised mechanistic scenario is proposed which is consistent with the experimentally derived empirical rate law and accounts for crucial experimental observations. It involves kinetically mobile reactant association/dissociation equilibria and facile, reversible intermolecular diene insertion into the Nd-amido bond, linked to turnover-limiting protonolysis of the eta3-butenyl-Nd functionality. The computationally predicted effective kinetics (Delta(tot) = 11.3 kcal mol(-1), Delta(tot) = -35.7 e.u.) are in reasonably good agreement with experimental data for the thoroughly studied hydroamination of alkynes. The thermodynamic and kinetic factors that determine the almost complete regio- and stereoselectivity of the mechanistically diverse intermolecular 1,3-diene hydroamination have been unraveled. The present computational study complements experiments because it allows, first, a more detailed understanding and a consistent rationalization of the experimental results for the hydroamination of 1,3-dienes and primary amines and, second, enhances the insights into general mechanistic aspects of organolanthanide-mediated intermolecular hydroamination.
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Affiliation(s)
- Sven Tobisch
- Institut für Anorganische Chemie der Martin-Luther-Universität Halle-Wittenberg, Fachbereich Chemie, Germany.
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86
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Kaspar LT, Fingerhut B, Ackermann L. Titan-katalysierte intermolekulare Hydroaminierung von Vinylarenen. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200501423] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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87
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Kaspar LT, Fingerhut B, Ackermann L. Titanium-Catalyzed Intermolecular Hydroamination of Vinylarenes. Angew Chem Int Ed Engl 2005; 44:5972-4. [PMID: 16097016 DOI: 10.1002/anie.200501423] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ludwig T Kaspar
- Ludwig-Maximilians-Universität München, Department of Chemistry and Biochemistry, Butenandtstrasse 5-13, Haus F, 81377 München, Germany
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88
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Tobisch S. Organolanthanide-Mediated Intramolecular Hydroamination/Cyclization of Conjugated Aminodienes: A Computational Exploration of Diverse Mechanistic Pathways for the Regioselective Generation of Functionalized Azacycles Supported by a Lanthanocene-Based Catalyst Complex. J Am Chem Soc 2005; 127:11979-88. [PMID: 16117537 DOI: 10.1021/ja042546h] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The complete catalytic reaction course for the organolanthanide-mediated intramolecular hydroamination/cyclization (IHC) of (4E,6)-heptadien-1-amine by a prototypical achiral Cp*(2)LaCH(TMS)(2) precatalyst is critically scrutinized by employing a gradient-corrected DFT method. The condensed free-energy profile for the overall reaction, comprised of thermodynamic and kinetic aspects of individual elementary steps, is presented. A computationally verified, revised mechanistic scenario has been proposed, which is consistent with the empirical rate law, accounts for crucial experimental observations, and provides a first understanding of the origin of the measured negative DeltaS(++). It involves rapid substrate association/dissociation equilibria and facile intramolecular diene insertion, linked to turnover-limiting protonolysis of the eta(3)-butenyl-Ln functionality, with the amine-amidodiene-Ln adduct complex representing the catalyst's resting state. The thermodynamic and kinetic factors that determine the high regio- and stereoselectivity of the mechanistically diverse IHC of aminodienes have been elucidated. These achievements allow a deeper understanding and a consistent rationalization of the experimental results for aminodiene IHC and furthermore enhance the insights into general mechanistic aspects of the organolanthanide-mediated cycloamination.
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Affiliation(s)
- Sven Tobisch
- Institut für Anorganische Chemie der Martin-Luther-Universität Halle-Wittenberg, Fachbereich Chemie, Kurt-Mothes-Strasse 2, D-06120 Halle, Germany.
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89
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Kawasaki S, Nakamura A, Toyota K, Yoshifuji M. The Electronic Effects of Bulky Aryl Substituents on Low Coordinated Phosphorus Atoms in Diphosphenes and Phosphaalkenes by Functionalization at the Para Position. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2005. [DOI: 10.1246/bcsj.78.1110] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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90
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Zotto AD, Baratta W, Felluga A, Rigo P. Addition of secondary amines to activated alkenes promoted by Pd(II) complexes: Use of ammonium salts as cocatalysts. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2005.03.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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91
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Kawasaki S, Fujita T, Toyota K, Yoshifuji M. Preparation and Properties of Fluorenylidene(phenyl)phosphines Bearing Bulky Groups with Electron-Donating Substituents in the Ortho Position on the Phenyl Group. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2005. [DOI: 10.1246/bcsj.78.1082] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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92
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Bajracharya GB, Huo Z, Yamamoto Y. Intramolecular Hydroamination of Alkynes Catalyzed by Pd(PPh3)4/Triphenylphosphine under Neutral Conditions. J Org Chem 2005; 70:4883-6. [PMID: 15932337 DOI: 10.1021/jo050412w] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The intramolecular hydroamination of alkynes tethered with amino group 1 in the presence of catalytic amounts of Pd(PPh3)4 and PPh3 in benzene at 100 degrees C proceeded smoothly without the use of any additional acid source to afford five- and six-membered nitrogen heterocycles 2 in good to excellent yields. A compulsory addition of carboxylic acid as a cocatalyst was not needed, and the reaction could be carried out under essentially neutral conditions.
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Affiliation(s)
- Gan B Bajracharya
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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93
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Kawasaki S, Nakamura A, Toyota K, Yoshifuji M. Preparation and Properties of 1,2-Diferrocenyl-Substituted 3,4-Diphosphinidenecyclobutenes and Their Complexes: The First Application of a Diphosphinidenecyclobutene Unit as a Linker of Functional Moieties. Organometallics 2005. [DOI: 10.1021/om0500772] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Subaru Kawasaki
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Akitake Nakamura
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kozo Toyota
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Masaaki Yoshifuji
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan
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94
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Yi CS, Yun SY. Ruthenium-Catalyzed Intermolecular Coupling Reactions of Arylamines with Ethylene and 1,3-Dienes: Mechanistic Insight on Hydroamination vsortho-C−H Bond Activation. Org Lett 2005; 7:2181-3. [PMID: 15901164 DOI: 10.1021/ol050524+] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text]. The cationic ruthenium complex [(PCy3)2(CO)(Cl)Ru=CHCH=C(CH3)2]+BF4- was found to be an effective catalyst for the coupling reaction of aniline and ethylene to form a approximately 1:1 ratio of N-ethylaniline and 2-methylquinoline products. The analogous reaction with 1,3-dienes resulted in the preferential formation of Markovnikov addition products. The normal isotope effect of k(NH)/k(ND) = 2.2 (aniline and aniline-d7 at 80 degrees C) and the Hammett rho = -0.43 (correlation of para-substituted p-X-C6H4NH2) suggest an N-H bond activation rate-limiting step for the catalytic reaction.
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Affiliation(s)
- Chae S Yi
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881, USA.
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95
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Doux M, Moores A, Mézailles N, Ricard L, Jean Y, Floch PL. The CO/PC analogy in coordination chemistry and catalysis. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2004.09.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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96
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97
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Katayama H, Nagao M, Nishimura T, Matsui Y, Umeda K, Akamatsu K, Tsuruoka T, Nawafune H, Ozawa F. Stereocontrolled Synthesis and Optical Properties of All-cis Poly(phenylene vinylenes) (PPVs): A Method for Direct Patterning of PPVs. J Am Chem Soc 2005; 127:4350-3. [PMID: 15783217 DOI: 10.1021/ja042853n] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Geometrically pure, all-cis poly(phenylene vinylenes) (PPVs) are synthesized by Suzuki-Miyaura-type polycondensation of 2,5-dioctyloxy-1,4-benzenediboronic acid with (Z,Z)-bis(2-bromoethenyl)benzenes, which are prepared by ruthenium-catalyzed (Z)-selective double hydrosilylation of diethynylbenzenes, followed by bromodesilylation of the resulting (Z,Z)-bis(2-silylethenyl)benzenes with N-bromosuccinimide. The all-cis PPVs thus obtained undergo one-way photoisomerization to the corresponding trans-PPVs both in solution and in the solid. This phenomenon is applied to direct microscale patterning of PPVs onto a quartz substrate.
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Affiliation(s)
- Hiroyuki Katayama
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
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98
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Piechaczyk O, Doux M, Ricard L, le Floch P. Synthesis of 1-Phosphabarrelene Phosphine Sulfide Substituted Palladium(II) Complexes: Application in the Catalyzed Suzuki Cross-Coupling Process and in the Allylation of Secondary Amines. Organometallics 2005. [DOI: 10.1021/om0490278] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olivier Piechaczyk
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau cedex, France
| | - Marjolaine Doux
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau cedex, France
| | - Louis Ricard
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau cedex, France
| | - Pascal le Floch
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau cedex, France
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99
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Moores A, Mézailles N, Ricard L, Le Floch P. η5-Rhodium(I) Complexes of a λ4-Phosphinine Anion: Syntheses, X-ray Crystal Structures, and Application in the Catalyzed Hydroformylation of Olefins. Organometallics 2005. [DOI: 10.1021/om049261y] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Audrey Moores
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Nicolas Mézailles
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Louis Ricard
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Pascal Le Floch
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
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100
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Nakamura A, Kawasaki S, Toyota K, Yoshifuji M. Preparation and Properties of 1,2-Bis[(2,4,6-tri-t-butylphenyl)phosphinidene]cyclobuta[l]phenanthrene. CHEM LETT 2004. [DOI: 10.1246/cl.2004.1570] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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