Original Papers
<2024>
37. Arylboronic Acid Pinacol Esters as Stable Boron Sources for
Dihydrodibenzoborepin Derivatives and a Dibenzoborole
Himeko Kawaguchi, Kotomi Fuse, Nanoka Maeda, Takuya Kuwabara
Molecules 2024, 29, 4024.
DOI: 10.3390/molecules29174024
preprint ver.: Preprints 2024, 2024071789. (DOI: 10.20944/preprints202407.1789.v1)
36. Lithium Salt of 2,5-Bis(trimethylsilyl)stannolyl Anion: Synthesis, Structure, and Nonaromatic Character
Kohei Kitamura, Youichi Ishii, Takuya Kuwabara
Inorganics 2024, 12, 92.
DOI: 10.3390/inorganics12030092
<2023>
35. Retro-Vinylidene Rearrangements of P- and S-Substituted Ruthenium Vinylidene Complexes
Takahiro Iwamoto, Kyoka Saito, Takuya Mitsubo, Takuya Kuwabara, Youichi Ishii
Organometallics 2023, 42, 167–173.
DOI: 10.1021/acs.organomet.2c00552
34. Exo- and endo-Isomers of Plumbylenes Supported by 1,3-Diethers of Calix[4]arene
Ryunosuke Kuriki, Youichi Ishii, Takuya Kuwabara*
Eur. J. Inorg. Chem. 2023, 26, e202200655.
Selected as EurJIC Talents
<2022>
33. Inorganic salt-assisted assembly of anionic π-conjugated rings enabling 7Li NMR-based evaluation of antiaromaticity
Shotaro Ito, Youichi Ishii, Takuya Kuwabara*
Dalton Trans. 2022, 51, 16397–16402.
DOI: 10.1039/D2DT02649J
32. Perfluorocycloparaphenylenes
Hiroki Shudo, Motonobu Kuwayama, Masafumi Shimasaki, Taishi Nishihara, Youhei Takeda, Takuya Kuwabara, Akiko Yagi, Yasutomo Segawa,* Kenichiro Itami*
Nat. Commun. 2022, 13, 3713.
DOI: 10.1038/s41467-022-31530-x
PrePrint version: DOI: 10.33774/chemrxiv-2021-7kd63
31. Weakly Bound Dimer of a Diaryloxygermylene Derived from a
tBuPh2Si-Substituted 2,2′-Methylenediphenol
Ryo Yamazaki, Ryunosuke Kuriki, Asuka Sugihara, Youichi Ishii and Takuya Kuwabara*
Crystals 2022, 12, 605.
30. Experimental Observation of β-Carbon Elimination from Alkenylrhodium Complexes through Exchange Reactions of the Alkenyl Unit
Takahiro Iwamoto, Koushi Shibuya, Tomoyuki Takakuwa, Takuya Kuwabara, Youichi Ishii*
Organometallics 2022, 41, 182–186.
DOI: 10.1021/acs.organomet.1c00695
<2021>
29. A new strategy for hyperconjugative antiaromatic compounds utilizing negative charges: a dibenzo[b,f]silepinyl dianion
Shotaro Ito, Youichi Ishii, Kazuya Ishimura, Takuya Kuwabara*
Chem. Commun. 2021, 57, 11330–11333.
DOI: 10.1039/D1CC04434F
<2020>
28. 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, 39, 4500–4509.
DOI:10.1021/acs.organomet.0c00595
Selected as the cover picture of issue 24.
27. 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.
26. 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
25. 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
<2019>
24. Inverted Sandwich Rh Complex Bearing a Plumbole Ligand and Its Catalytic Activity
Masaichi Saito, Marisa Nakada, Takuya Kuwabara, Ryota Owada, Shunsuke Furukawa, Radhika Narayanan, Ninori Abe, Masahiko Hada, Ken Tanaka, Yoshihiko Yamamoto
Organometallics 2019, 38, 3099–3103.
DOI:10.1021/acs.organomet.9b00339
23. 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.
22. 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
<2018>
21. 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
20. 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.
19. 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.
18. 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.
<2017>
17. Reactions of Dilithium Dibenzopentalenides with Cr(CO)3(CH3CN)3: Unexpected Formation of A Cubic Tetramer of An Anionic Hydrodibenzopentalenyl Complex
Takuya Kuwabara, Nobuaki Kurokawa, Masaichi Saito*
ChemPlusChem 2017, 82, 1039–1042.
DOI:org/10.1002/cplu.201700043
16. Synthesis and reactivity of a ruthenocene-type complex bearing an aromatic π-ligand with the heaviest group 14 element
Marisa Nakada, Takuya Kuwabara, Shunsuke Furukawa, Masahiko Hada, Mao Minoura, Masaichi Saito
Chem. Sci. 2017, 8, 3092–3097.
<2016>
15. (η4-Butadiene)Sn(0) Complexes: A New Approach for Zero-valent p-Block Elements Utilizing a Butadiene as a 4π-Electron Donor
Takuya Kuwabara, Marisa Nakada, Jumpei Hamada, Jing-dong Guo, Shigeru Nagase, Masaichi Saito
J. Am. Chem. Soc. 2016, 138, 11378–11382.
Highlighted in Chemistry Views、埼玉大学プレスリリース
<2015>
14. Synthesis of a Stannole Dianion Complex Bearing a μ-η1;η1-Coordination Mode: Different Electronic State of Stannole Dianion Ligands Depending on Their Hapticity
Takuya Kuwabara, Masaichi Saito
Organometallics 2015, 34, 4202–4204.
DOI:10.1021/acs.organomet.5b00614
13. Diverse Coordination Modes in Tin Analogues of Cyclopentadienyl Anion Depending on the Substituents on the Tin Atom
Takuya Kuwabara, Marisa Nakada, Jing-Dong Guo, Shigeru Nagase, Masaichi Saito
Dalton Trans. 2015, 44, 16266–16271.
Selected as the front inside cover、Highlighted in A News Paper (日刊工業新聞)、
Chem-Station 第 4 回スポットライトリサーチ、埼玉大学プレスリリース
12. Curved Oligophenylenes as Donors in Shape-Persistent Donor-Acceptor Macrocycles with Solvatofluorochromic Properties
Takuya Kuwabara, Jun Orii, Yasutomo Segawa, Kenichiro Itami
Angew. Chem. Int. Ed. 2015, 54, 9646–9649.
Highlighted in ACS Central Science (DOI: 10.1021/acscentsci.5b00339)
11. Palladium-free Synthesis of [10]Cycloparaphenylene
Yasutomo Segawa, Takuya Kuwabara, Katsuma Matsui, Satoru Kawai, Kenichiro Itami
Tetrahedron 2015, 26–27, 4500–4503.
10. A Reversible Two-electron Redox System Involving a Divalent Lead Species
Masaichi Saito, Marisa Nakada, Takuya Kuwabara, Mao Minoura
Chem. Commun. 2015, 51, 4674–4676.
<2014>
9. Synthesis, Structures and Electronic Properties of Triple- and Double-Decker Ruthenocenes Incorporated by A Metallole Dianion Ligand
Takuya Kuwabara, Jing-Dong Guo, Shigeru Nagase, Takahiro Sasamori, Norihiro Tokitoh, Masaichi Saito
J. Am. Chem. Soc. 2014, 136, 13059–13064.
埼玉大学プレスリリース
8. Enhancement of Stannylene Character in Stannole Dianion Equivalents Evidenced by NMR, Mössbauer Spectroscopies and Theoretical Studies of Newly Synthesized Silyl-substituted Dilithiostannoles
Takuya Kuwabara, Jing-Dong Guo, Shigeru Nagase, Mao Minoura, Rolfe H. Herber, Masaichi Saito
Organometallics 2014, 33, 2910–2913.
7. Facile Synthesis of Dibenzopentalene Dianions and Their Application as New π- extended Ligands
Takuya Kuwabara, Kazuya Ishimura, Takahiro Sasamori, Norihiro Tokitoh, Masaichi Saito
Chem. Eur. J. 2014, 20, 7571–7575.
6. Diversity of the Structures in a Distannene Complex and its Reduction to Generate Six-membered Ti2Sn4 Ring Complex
Takuya Kuwabara, Jing-Dong Guo, Shigeru Nagase, Masaichi Saito
Angew. Chem. Int. Ed. 2014, 53, 434–438.
<2013>
6. Unexpected Formation of Ru2Sn2 Bicyclic Four-Membered Ring Complexes with Butterfly and Inverse-Sandwich Structures
Takuya Kuwabara, Masaichi Saito, Jing-Dong Guo, Shigeru Nagase
Inorg. Chem. 2013, 52, 3585–3587.
<2011>
4. Synthesis of a Novel Lithocene that has Aromatic-like Nature with Non-aromatic Rings
Masaichi Saito, Takuya Kuwabara, Kazuya Ishimura, Shigeru Nagase
Chem. Asian. J. 2011, 6, 2907–2910.
3. 1,1′-Di-tert-butyl-2,2′,3,3′,4,4′,5,5′-octaethyl-1,1′-bistannole
Takuya Kuwabara, Masaichi Saito
Acta Cryst. 2011, E67, m949.
<2010>
2. Synthesis, Structure and Reaction of Tetraethyldilithiostannole
Masaichi Saito, Takuya Kuwabara, Chika Kambayashi, Michikazu Yoshioka, Kazuya Ishimura, Shigeru Nagase
Chem. Lett. 2010, 39, 700–701.
DOI: 10.1246/cl.2010.700
Selected as Editor’s Choice
1. Synthesis and Structures of Lithium Salts of Stannole Anions
Masaichi Saito, Takuya Kuwabara, Kazuya Ishimura, Shigeru Nagase
Bull. Chem. Soc. Jpn. 2010, 83, 825–827.
Books and Reviews
1. Review de Debut “環ひずみをもつ三配位リン化合物の触媒開発”
有機合成化学協会誌, 2018, 76, 1100–1101.
DOI: org/10.5059/yukigoseikyokaishi.76.1100
2. Siloles, Germoles, Stannoles, and Plumboles
Takuya Kuwabara, Masaichi Saito
Comprehensive Heterocyclic Chemistry IV (Fourth Edition)
2022, 3, 798–832.