Curriculum Vitaes
Profile Information
- Affiliation
- Professor, Faculty of Science and Technology, Department of Materials and Life Sciences, Sophia University(Concurrent)Chairperson of the Department of Materials and Life Sciences
- Degree
- Ph.D.(The University of Tokyo)博士（工学）(東京大学)
- Researcher number
- 90241231
- J-GLOBAL ID
- 200901036804609930
- researchmap Member ID
- 5000003394
- External link
I am engaged in organometallic chemistry, which is the study of organometallic compounds in which carbon atoms and metal atoms are covalently bonded. In particular, I have been studied on early-transition metals such as zirconium compounds. For example, organic synthesis that utilized zirconocene complexes, olefin polymerization catalysts and synthesis of small metalacyclic alkynes and allenes. Recently I have been investigating more environmentally friendly organic reaction processes using water as a reaction medium in the presence of thermo-responsive polymer micelles.
Research Areas
3Research History
7-
Apr, 2010 - Mar, 2021
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Apr, 2007 - Mar, 2009
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Apr, 2007 - Mar, 2009
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Apr, 1999 - Mar, 2007
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May, 1996 - Mar, 1999
Education
3-
Apr, 1991 - Oct, 1991
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Apr, 1986 - Mar, 1988
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Apr, 1982 - Mar, 1986
Awards
3Papers
112-
TETRAHEDRON LETTERS, 34(41) 6571-6574, Oct, 1993 Peer-reviewedTreatment of alkynes with zirconocene-ethylene complex and homoallylic halides gave allylcyclopropane derivatives.
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JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 115(18) 8485-8486, Sep, 1993 Peer-reviewed
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TETRAHEDRON LETTERS, 34(30) 4811-4814, Jul, 1993 Peer-reviewedReactions of zirconocene-alkyne complexes with allylic ethers afforded allylzirconation products of alkynes in high yields.
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CHEMISTRY LETTERS, 22(6) 1001-1004, Jun, 1993 Peer-reviewedWhen ethylene and alkynes such as 4-octyne and diphenylacetylene were treated with CP2ZrBu2, highly pair selective coupling products were formed in high yields. Similarly, styrene or trimethylvinylsilane also afforded cross coupling products with alkynes on zirconocene complex.
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Journal of the Chemical Society, Chemical Communications, (13) 1042-1044, 1993Alcoholysis of zirconacyclopentenes proceeds at the alkyl carbon on Zr with high chemoselectivity in sharp contrast to monoiodination of Zirconacyclopentenes with iodine alcoholysis followed by iodination of Zirconacyclopentenes produces stereodefined trisubstituted alkenyl iodides in high yields with high isomeric purities.
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CHEMISTRY LETTERS, 21(12) 2367-2370, Dec, 1992Competitive beta-hydrogen abstraction of ''mixed'' dialkylzirconocenes and kinetic measurements of decomposition of methyl(alkyl)zirconocenes reveal unexpected relative reactivity of alkyl groups as beta-hydrogen donors, such as s-Bu > t-Bu greater-than-or-equal-to Et > n-Bu > i-Bu, which correlate well in most cases with the reactivity order of: beta-methyl > beta-methylene > beta-methine. Some mechanistically crucial features of the reaction are also discussed.
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CHEMISTRY LETTERS, 21(9) 1693-1696, Sep, 1992 Peer-reviewedTreatment of trans-3,4-diethylzirconacyclopentane complex, which was a selective butene-butene coupling product on zirconium, with methanol followed by bromine gave selectively monobromination product, 2-ethyl-3-methyl-1-bromopentane, in 89% yield with high stereoselectivity. Similarly, non-conjugated diene cyclization products on zirconium were also selectively converted into monohalogenated compounds. These selective monohalogenations proceeded via alkylalkoxyzirconocene complexes.
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JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 30(9) 2067-2069, Aug, 1992 Peer-reviewed
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TETRAHEDRON LETTERS, 33(15) 1965-1968, Apr, 1992 Peer-reviewedThe reaction of monosubstituted alkenes with alkylmagnesium derivatives catalyzed by Cp2ZrCl2 or related zirconocene derivatives provides head-to-tail alkyl-alkene or alkene-alkene coupling products, approximately 50% of which are 2,5-dialkyl-4-pentenylmagnesium halides.
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CHEMISTRY LETTERS, 21(2) 331-334, Feb, 1992 Peer-reviewedReactions of zirconocene-alkene complexes with aldehydes gave alcohols as coupling products after hydrolysis. The carbon-carbon bond formation proceeded at C1 carbon of alkenes, in sharp contrast to the reactions of alkene-alkene coupling on zirconium. A similar alcohol was also obtained by the reaction of zirconacyclopentane with aldehyde after hydrolysis. Treatment of (C5Me5)2ZrEt2 with styrene gave 2-phenylbutane after hydrolysis contrary to the case of Cp2ZrEt2 which afforded 1-phenylbutane.
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JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 113(22) 8564-8566, Oct, 1991 Peer-reviewed
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CHEMISTRY LETTERS, 20(9) 1579-1582, Sep, 1991 Peer-reviewedHydrogenation reactions of alkenes were catalyzed by zirconium-alkene complex derivatives which are prepared from Cp2ZrCl2 (Cp = eta-5-C5H5) and n equiv. of RR'CHCH2M (M = MgX or Li). By the use of three or more equiv. of EtMgBr relative to Cp2ZrCl2, the product yield of hydrogenation of 1-decene was remarkably improved most likely due to the stabilization of the Zr(II) species.
Misc.
3-
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, (3) 316-316, Jan, 2013
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触媒, 41(6) 392-394, Sep 10, 1999
Books and Other Publications
7-
CMC publishing Co., Ltd., Mar, 2022 (ISBN: 9784781316635)
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Springer, Mar, 2004 (ISBN: 9783540016069)Stereoselective olefin polymerization using metallocene catalysts
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Maruzen, Mar, 2004 (ISBN: 9784621073209)
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Springer, Jan, 2001 (ISBN: 9783540414025)Olefin Polymerization under High-pressure: Formation of Super-high Molecular Weight Polyolefins
Presentations
105-
The 104th Annual meeting of The Chemical Society of Japan, Mar 18, 2024
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The 104th Annual meeting of The Chemical Society of Japan, Mar 18, 2024
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13th CSJ Chemistry Festa 2023, Oct 19, 2023
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International Congress on Pure & Applied Chemitsry (ICPAC 2023 Bali), Sep 13, 2023 Invited
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ACS Spring 2023, Mar 26, 2023
Research Projects
18-
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2021 - Mar, 2024
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Sophia University, Apr, 2019 - Mar, 2022
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Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2017 - Mar, 2020