◆Publications◆

  1. Selective Double CH Activation at a Methylene Carbon in Methylenediphenol Derivatives to Generate Carbene-Bridged Dinuclear Iridium Complexes
    Takuya Kuwabara, Takuya Toriumi, Mika Suzuki, and Youichi Ishii*
    Organometallics 2020, 49, in press.
    DOI:10.1021/acs.organomet.0c00595
  2. Synthesis and Structures of Diaryloxystannylenes and -plumbylenes embedded in 1,3-Diethers of Thiacalix[4]arene
    Ryunosuke Kuriki, Takuya Kuwabara,* and Youichi Ishii*
    Dalton Trans. 2020, 49, 12234–12241.
    DOI:10.1039/D0DT02496A
  3. Direct Formation of Disubstituted Vinylidenes from Internal Alkynes at Group 8 Metal Complexes and its Application to Organic Synthesis
    Yuichiro Mutoh, Youichi Ishii, and Shinichi Saito
    J. Synth. Org. Chem. Japan 2020, 78, 691–702.
    DOI:10.5059/yukigoseikyokaishi.78.691.
  4. A Tin Analogue of the Cycloheptatrienyl Anion: Synthesis, Structure, and Further Reduction to Form a Dianionic Species
    Shotaro Ito, Takuya Kuwabara,* and Youichi Ishii*
    Organometallics 2020, 39, 640–644.
    DOI:10.1021/acs.organomet.0c00042
  5. Ruthenium Vinylidene Complexes Generated by Selective 1,2-Migration of P- and S- Substituents: Synthesis, Structures, and Dichromism Arising from an Intermolecular CH…O Hydrogen Bond
    Takuya Kuwabara, Yutaka Aoki, Kousuke Sakajiri, Kazuki Deguchi, ShuheiTakamori, Ai Hamano, Keiko Takano, Hirohiko Houjou and Youichi Ishii*
    Organometallics 2020, 39, 711–718.
    DOI:10.1021/acs.organomet.9b00856
  6. Synthesis of Phosphaphenalenium Salts via P–C Reductive Elimination at a Ru(II) Center and Their Fluorescence Properties
    Takahiro Kato, Takuya Kuwabara, Yasunori Minami, Tamejiro Hiyama, and Youichi Ishii*
    Bull. Chem. Soc. Jpn. 2019, 92, 1131-1141.
    DOI:abs/10.1246/bcsj.20190090
  7. Molybdenum-Mediated Vinylidene Rearrangement of Internal Acylalkynes and Sulfonylalkynes
    Takuya Kuwabara, Kousuke Sakajiri, Yousuke Oyama, Shintaro Kodama , and Youichi Ishii*
    Organometallics 2019, 38, 1560-1566.
    DOI:10.1021/acs.organomet.9b00019
  8. Reductive Formation of a Vanadium(IV/V) Oxide Cluster Complex [V8O19 (4,4'-tBubpy)3] Having a C3-Symmetric Propeller-Shaped Nonionic V8O19 Core
    Yuta Inoue, Shintaro Kodama*, Nobuto Taya, Hirohiko Sato, Katsuyoshi Oh-ishi, Youichi Ishii*
    Inorg. Chem. 2018, 57, 7491–7494.
    DOI:10.1021/acs.inorgchem.8b00651
  9. Ring Slippage and Dissociation of Pentamethylcyclopentadienyl Ligand in an (η5-Cp* )Ir Complex with a κ3-O,C,O Tridentate Calix[4]arene Ligand under Mild Conditions
    Takuya Kuwabara, Ryogen Tezuka, Mikiya Ishikawa, Takuya Yamazaki, Shintaro Kodama and Youichi Ishii*
    Organometallics 2018, 37, 1829–1832.
    DOI:10.1021/acs.organomet.8b00257
  10. Dinuclear Nickel Complexes Doubly Bridged by Hydrogencyanamido Ligands: Synthesis, Structures and Magnetic Properties
    Takuya Kuwabara, Natsumi Shiga, Shintaro Kodama, Hirohiko Sato, Hirohiko Houjou and Youichi Ishii*
    Eur. J. Inorg. Chem. 2018, 3413–3417.
    DOI:10.1002/ejic.201800457
  11. Visible-Light-Sensitive Sulfornium Photoacid Generators Bearing a Ferrocenyl Chromophore
    Yukihiro Takahashi, Shintaro Kodama*, Youichi Ishii*
    Organometallics 2018, 37, 1649–1651.
    DOI:10.1021/acs.organomet.8b00203
  12. P–C reductive elimination in Ru(II) complexes to convert triarylphosphine ligands into five- or six-membered phosphacycles
    Takuya Kuwabara, Takahiro Kato, Kouichi Takano, Shintaro Kodama, Yuuka Manabe, Noriko Tsuchida, Keiko Takano, Yasunori Minami, Tamejiro Hiyama and Youichi Ishii*
    Chem. Commun. 2018, 54, 5357–5360.
    DOI:10.1039/C8CC02539H
  13. Activation of a Carbon-Carbon Bond in Internal Alkynes: Vinylidene Rearrangement of Disubstituted Alkynes at an Ir Complex
    Takuya Kuwabara, Shuhei Takamori, Satoshi Kishi, Takahiro Watanabe, Yousuke Ikeda, Shintaro Kodama, Yasunori Minami, Tamejiro Hiyama, Youichi Ishii*
    Synlett. 2018, 29, 727–730.
    DOI:10.1055/s-0036-1591511
  14. Direct transformation of 2-acetylpyridine oxime esters into α-oxygenated imines in an Ir(III) complex
    Hiroyuki Takahashi, Shintaro Kodama*, Youichi Ishii*
    Dalton Trans. 2017, 46, 12032–12035.
    DOI:10.1039/C7DT02528A
  15. An oxidovanadium(IV) complex having a perrhenato ligand: An efficient catalyst for aerobic oxidation reactions of benzylic and propargylic alcohols
    Daiki Kobayashi, Shintaro Kodama, Youichi Ishii*
    Tetrahedron Lett. 2017, 58, 3306–3310.
    DOI:10.1016/j.tetlet.2017.07.034
  16. A ruthenium tellurocarbonyl (CTe) complex with a cyclopentadienyl ligand: systematic studies of a series of chalcogenocarbonyl complexes [CpRuCl(CE)(H2IMes)] (E = O, S, Se, Te)
    Ayumi Suzuki, Takahiro Arai, Kota Ikenaga, Yuichiro Mutoh, Noriko Tsuchida, Shinichi Saito and Youichi Ishii*
    Dalton Trans. 2017, 46, 44–48.
    DOI:10.1039/C6DT04440A
  17. Synthesis and Interconversion of V4, V7, and V8 Oxide Clusters: Unexpected Formation of Neutral Heptanuclear Oxido(alkoxido)vanadium(V) Clusters [V7O17(OR)(4,4’-tBubpy)3] (R = Et, MeOC2H4)
    S. Kodama, N. Taya, Y. Inoue, Y. Ishii
    Inorg. Chem. 2016, 55, 6712–6718.
    DOI:10.1021/acs.inorgchem.6b00963
  18. Competition between Vinylidene Rearrangement and 1,2-Insertion of Carbon-Disubstituted Internal Alkynes at a Cp*Ir(III) Complex
    Y. Ikeda, S. Kodama, N. Tsuchida, Y. Ishii
    Dalton Trans. 2015, 44, 17448–17452.
    DOI:10.1039/C5DT02207J
  19. Theoretical Study on Internal Alkyne/Vinylidene Isomerization in Group 8 Transition-Metal Complexes
    M. Otsuka, N. Tsuchida*, Y. Ikeda, N. Lambert, R. Nakamura, Y. Mutoh, Y. Ishii, K. Takano*
    Organometallics 2015, 34, 3934–3943.
    DOI:10.1021/om501280c
  20. Remote Rearrangement of the Metal Center in a (η6-C6Me6)Ru(II) Complex
    K. Takano, Y. Ikeda, S, Kodama, Y. Ishii*
    Chem. Commun. 2015, 51, 4981–4984.
    DOI:10.1039/C4CC09699A
  21. Synthesis of Rhodium-Primary Thioamide Complexes and Their Desulfurization Leading to Rhodium Sulfido Cubanetype Clusters and Nitriles
    Y. Mutoh*, M. Sakigawara, I. Niiyama, S. Saito, Y. Ishii*
    Organometallics 2014, 33, 5414–5422.
    DOI:10.1021/om500714c
  22. 1,4- and 1,3-Metal Migration in a Cp*IrIII Complex: Experimental Evidence of Direct 1,3-Metal Migration
    Y. Ikeda, K. Takano, S. Kodama, and Y. Ishii*
    Organometallics 2014, 33, 3998–4004.
    DOI:10.1021/om5005258
  23. Reversibility of 1,4-Metal Migration in Cp*RhIII and Cp*IrIII Complexes
    Y. Ikeda, K. Takano, M. Waragai, S. Kodama, N. Tsuchida, K. Takano, and Y. Ishii*
    Organometallics 2014, 33, 2142–2145.
    DOI:10.1021/om5003232
  24. A Novel Octanuclear Vanadium (V) Oxide Cluster Complex Having an Unprecedented Neutral V8O20 Core Functionalized with 4,4'-Di-tert-butyl-2,2'-bipyridine
    S. Kodama*, N. Taya, and Y. Ishii*
    Inorg. Chem. 2014, 53, 2754–2756.
    DOI:10.1021/ic4031393
  25. 1,4-Metal migration in a Cp*Rh(III) complex
    Y. Ikeda, K. Takano, S. Kodama, and Y. Ishii*
    Chem. Commun. 2013, 49, 11104–11106.
    DOI:10.1039/C3CC46700G
  26. Reactivities of Indenylruthenium Complex toward Internal Alkynes: Formation of Disubstituted Vinylidene Complexes and Indenyl–Alkyne Coupling
    Y. Ikeda, Y. Mutoh*, K. Imai, N. Tsuchida, K. Takano, and Y. Ishii*
    Organometallics 2013, 32, 4353–4358.
    DOI:10.1021/om4004913
  27. Transformations of Alkynes at a Cyclotriphosphato Ruthenium Complex
    K. Kanao, Y. Ikeda, K. Kimura, S. Kamimura, Y. Tanabe, Y. Mutoh, M. Iwasaki, and Y. Ishii*
    Organometallics 2013, 32, 527–537.
    DOI:10.1021/om3009926
  28. DFT Study of Internal Alkyne–to–Disubstituted Vinylidene Isomerization in [CpRu(PhC≡CAr)(dppe)]+
    M. Otsuka, N. Tsuchida*, Y. Ikeda, Y. Kimura, Y. Mutoh, Y. Ishii, and K. Takano*
    J. Am. Chem. Soc. 2012, 134, 17746–17756.
    DOI:10.1021/ja308018b
  29. Formation of (Alkenylphosphonio)phenylruthenium Complexes from Diphenylacetylene and a [CpRu(dppm)] Cation: Experimental Evidence for the Equilibrium between η1-Disubstituted Vinylidene and η2-Internal Alkyne
    Y. Mutoh*, Y. Kimura, Y. Ikeda, N. Tsuchida, K. Takano, and Y. Ishii*
    Organometallics 2012, 31, 5150–5158.
    DOI:10.1021/om3004948
  30. Synthesis and Skeletal Transformation of Cyanamido(2-)- and Cyanamido(1-)-Bridged Ruthenium Complexes with Hexamethylbenzene Ligands
    T. Nogami, M. Imaji, K. Uemura, Y. Tanabe, Y. Mutoh, and Y. Ishii*
    Chem. Lett. 2011, 40, 1167–1169.
    DOI:org/10.1246/cl.2011.1167
  31. Reversibility of Disubstituted Vinylidene–Internal Alkyne Isomerization at Cationic Ruthenium and Iron Complexes
    Y. Mutoh*, K. Imai, Y. Kimura, Y. Ikeda, and Y. Ishii*
    Organometallics 2011, 30, 204–207.
    DOI:10.1021/om101109c
  32. Ruthenium Seleno- and Tellurocarbonyl Complexes: Selenium and Tellurium Atom Transfer to a Terminal Carbido Ligand
    Y. Mutoh*, N. Kozono, M. Araki, N. Tsuchida, K. Takano, and Y. Ishii*
    Organometallics 2010, 29, 519–522.
    DOI:10.1021/om901029w
  33. Internal Alkyne-to-vinylidene Isomerization at Cationic Ruthenium and Iron Complexes
    Y. Mutoh, Y. Ikeda, Y. Kimura, and Y. Ishii*
    Chem. Lett. 2009, 38, 534–535.
    DOI:org/10.1246/cl.2009.534
  34. Core Expansion Reactions of Cyanamido/Carbodiimido-Bridged Polynuclear Iridium Complexes
    M. Imaji, Y. Tanabe, Y. Mutoh, and Y. Ishii*
    Inorg. Chem. 2009, 48, 773–780.
    DOI:10.1021/ic8017503
  35. Formation of Vinylidenes from Internal Alkynes at a Cyclotriphosphato Ruthenium Complex
    Y. Ikeda, T. Yamaguchi, K. Kanao, K. Kimura, S. Kamimura, Y. Mutoh, Y. Tanabe, and Y. Ishii*
    J. Am. Chem. Soc. 2008, 130, 16856–16857.
    DOI:10.1021/ja8080567
  36. Synthesis and diastereoselective ligand substitution reaction of a mono(sulfido)-bridged Ir–Mo heterodinuclear complex
    K. Arashiba, S. Matsukawa, Y. Tanabe, S. Kuwata, and Y. Ishii*
    Inorganic Chemistry Communications. 2008, 587–590.
    DOI:10.1016/j.inoche.2008.02.026
  37. Synthesis, Structures, and Properties of Group 9– and Group 10–Group 6 Heterodinuclear Nitrosyl Complexes
    K. Arashiba, H. Iizuka, S. Matsukawa, S. Kuwata, Y. Tanabe, M. Iwasaki, and Y. Ishii*
    Inorg. Chem. 2008, 47, 4264–4274.
    DOI:10.1021/ic702309h
  38. Synthesis and reactivities of a bis(cyanamido)-capped triruthenium complex
    Y. Tanabe, H. Kajitani, M. Iwasaki, and Y. Ishii*
    Dalton Trans. 2007, 4701–4707.
    DOI:10.1039/B708328A
  39. Synthesis and Reactivities of Sulfido-bridged Ir–W and Ir–Re Heterodinuclear Complexes with Imido Ligands
    K. Arashiba, Y. Tanabe, and Y. Ishii*
    Chem. Lett. 2007, 36, 622–623.
    DOI:10.1246/cl.2007.622
  40. Syntheses and properties of NCN-bridged tri- and tetranuclear complexes of cobalt and rhodium
    K. Takahata, N. Iwadate, H. Kajitani, Y.Tanabe, and Y. Ishii*
    J. Organomet. Chem. 2007, 692, 208–216.
    DOI:10.1016/S0022-328X(06)00637-1
  41. Electrophilic O-Methylation of a Terminal Nitrosyl Ligand Attained by an Early–Late Heterobimetallic Effect
    K. Arashiba, S. Matsukawa, S. Kuwata, Y. Tanabe, M. Iwasaki, and Y. Ishii*
    Organometallics 2006, 25, 560–562.
    DOI:10.1021/om0510573
  42. A Cyanamido-Bridged Diiridium Complex: A Reactive Building Block for Polynuclear Cyanamido Complexes
    H. Kajitani, Y. Tanabe, S. Kuwata, M. Iwasaki, and Y. Ishii*
    Organometallics 2005, 24, 2251–2254.
    DOI:10.1021/om048978i
  43. Synthesis, Structures, and Solution Behavior of Di- and Trinuclear Titanium(IV)–Cyclophosphato Complexes
    S. Kamimura, T. Matsunaga, S. Kuwata, M. Iwasaki, and Y. Ishii*
    Inorg. Chem. 2004, 43, 6127–6129.
    DOI:10.1021/ic049206h
  44. Synthesis and Characterization of Cyclotetraphosphato Complexes of Rh(I), Ir(I), Ru(II), and Pd(II)
    S. Kamimura, S. Kuwata, M. Iwasaki, and Y. Ishii*
    Inorg. Chem. 2004, 43, 399–401.
    DOI:10.1021/ic0350382
  45. Stepwise Construction of a Re–Pd Heterodinuclear Core Inside the Cavity of p-tBu-Calix[4]arene
    K. Iwasa, T. Kochi, and Y. Ishii*
    Angew. Chem. Int. Ed. 2003, 42, 3658–3660.
    DOI:10.1002/ange.200351530
  46. Synthesis, structures and solution behaviour of cyclotriphosphato complexes of Pd(II), Pt(II) and Pt(IV)
    S. Kamimura, S. Kuwata, M. Iwasaki, and Y. Ishii*
    Dalton Trans. 2003, 2666–2673.
    DOI:10.1039/B301223A
  47. Mono(sulfido)-Bridged Mixed-Valence Nitrosyl Complex: Protonation and Oxidative Addition of Iodine across the Ir(II)-Ir(0) Bond
    T. Hattori, S. Matsukawa, S. Kuwata*, Y. Ishii*, and M. Hidai*
    Chem. Commun. 2003, 510–511.
    DOI:10.1039/B211021K
  48. Synthesis of Ferromagnetic Mn-Pt Nanoparticles from Organometallic Precursors
    K. Ono*, R. Okuda, Y. Ishii, S. Kamimura, and M. Oshima
    J. Phys. Chem. B 2003, 107, 1941–1942.
    DOI:10.1021/jp026898r
  49. Novel Catalytic Hydrogenolysis of Silyl Enol Ethers by the Use of Acidic Ruthenium Dihydrogen Complexes
    I. Takei, Y. Nishibayashi, Y. Ishii, Y. Mizobe, S. Uemura, and M. Hidai
    J. Organomet. Chem. 2003, 679, 32–42. DOI:10.1016/S0022-328X(03)00470-4
  50. Hydrolysis of Diribonucleoside Monophosphate Diesters Assisted by a Manganese(II) Complex
    M. Yashiro*, M. Higuchi, M. Komiyama, and Y. Ishii
    Bull. Chem. Soc. Jpn. 2003, 76, 1813–1817.
    DOI:10.1246/bcsj.76.1813
  51. Sulfido-Bridged IrRh2 Clusters Derived from (Hydrsulfido)iridium Complexes and Dirhodium Fragment. Comparison between Hydrido-Hydrosulfido and Bis(hydrosulfido) Systems
    A. Matsubayashi, S. Kuwata, Y. Ishii*, and M. Hidai*
    Chem. Lett. 2002, 31, 460–461.
    DOI:10.1063/1.1456407
  52. Site-Selective and Stepwise Complexation of Two M(cod)+ (M = Rh, Ir) Fragments with Calix[4]arene
    Y. Ishii*, K. Onaka, H. Hirakawa, and K. Shiramizu
    Chem. Comm. 2002, 1150–1151.
    DOI:10.1039/B201992M
  53. Organometallic Synthesis and Magnetic Properties of Ferromagnetic Sm-Co Nanoclusters
    K. Ono*, Y. Kakefuda, R. Okuda, Y. Ishii, S. Kamimura, A. Kitamura, and M. Oshima
    J. Appl. Phys. 2002, 91, 8480–8482.
    DOI:10.1063/1.1456407
  54. Synthesis and Skeletal Transformations of NCNH- and NCN-Bridged Tetrairidium(III) Cages
    Y. Tanabe, S. Kuwata, and Y. Ishii*
    J. Am. Chem. Soc. 2002, 124, 6528–6529.
    DOI:10.1021/ja017436e
  55. Sulfur-Bridged Early-Late Heterobimetallics Synthesized by Incorporation of Titanium, Vanadium, and Molybdenum into Bis(hydrosulfido) Templates of Group 9 Metals
    S. Kuwata, T. Nagano, A. Matsubayashi, Y. Ishii*, and M. Hidai*
    Inorg. Chem. 2002, 41, 4324–4330.
    DOI:10.1021/ic020105y
  56. Coordination Behaviour of (Diaryl Disulfide)-Bridged Dinuclear Thiairidaindan Cores: Ligand Substitution by Isocyanides, CO, Hydrazines and Hydroxyamine, and Related Reactions
    S. Matsukawa, S. Kuwata, Y. Ishii*, and M. Hidai*
    J. Chem. Soc., Dalton Trans. 2002, 2737–2746.
    DOI:10.1039/B201591A
  1. Strained Three-coordinate Phosphorous Compounds as Catalysts
    Takuya Kuwabara
    J. Synth. Org. Chem. Jpn. 2018, 76, 1100-1101.
    DOI:10.5059/yukigoseikyokaishi.76.1100
  2. Recent Developments in the Chemistry of Seleno- and Tellurocarbonyl Complexes
    Yuichiro Mutoh, Naoki Kozono, Kota Ikenaga, and Youichi Ishii
    Coord. Chem. Rev. 2012, 256, 589–605.
    DOI:10.1016/j.ccr.2011.12.002
  3. Novel Chemical Transformation at Diruthenium Centers Bridged by Thiolato Ligands
    M. Hidai, Y. Ishii, and S. Kuwata
    in Modern Coordination Chemistry, G. J. Leigh and N. Winterton eds., Royal Society of Chemistry, 2002. 208–216
    DOI:10.1039/9781847551481-00208
  4. Intramolecular Acylpalladation with Arenes
    Y. Ishii and M. Hidai
    in Handbook of Organopalladium Chemistry for Organic Synthesis, E.-I. Negishi ed., John Wiley & Sons, Inc.
    Vol. 2, 2002, 2553–2558
    DOI:10.1002/0471212466.ch112>
  1. 金属との錯形成により感光波長を変更できる配位子型光酸発生剤の開発
    小玉晋太朗・木曽川悠太・石井洋一
    ケミカルエンジニヤリング, 2014, 59(12), 42–47.
  2. 鉄ニトリド(Fe≡N)錯体も単離できる!後周期遷移金属ニトリド錯体の新展開
    武藤雄一郎・石井洋一
    化学, 2009, 64(11), 72–73.
  3. シクロトリホスフェートを配位子とするタンタルおよびニオブ錯体の合成と構造
    上村 聡, 大石 克嘉, 福澤 信一, 石井 洋一
    中央大学理工学研究所論文集, 2004, 9, 43–50.