学科名　　化学科　　　講座名　　物質化学講座

教員名　　今本恒雄　　

電子メール　imamoto@faculty.chiba-u.jp

ホームページ　http://org.chem.chiba-u.jp/　

 

(1)             研 究 業　績

 

原 著 論 文

1.  Highly Enantioselective Hydrosilylation of Simple Ketones Catalyzed by Rhodium Complexes of P-Chiral Diphosphine Ligands Bearing tert-Butylmethylphosphino Group, T. Imamoto, T. Ito, Y. Yamanoi, R. Narui, K. Yoshida, Tetrahedron: Asymmetry, 17, 560-565 (2006).

2. P-Chiral Tetraphosphine Dirhodium Complex as a Catalyst for Asymmetric Hydrogenation: Synthesis, Structure, Enantioselectivity, and Mechanism. Stereoselective Formation of a Dirhodium Tetrahydride Complex and Its Reaction with Methyl (Z)-a-Acetamidocinnamate, T. Imamoto, K. Yashio, K. V. L. Crépy, H. Takahashi, M. Kouichi, I. D. Gridnev, Organometallics, 25, 908-914 (2006).

3.  Enantioselective Hydrogenation of Acyclic Aromatic N-Aryl Imines Catalyzed by an Iridium Complex of (S,S)-1,2-Bis(tert-butylmethylphosphino)ethane, T. Imamoto, N, Iwadate, K. Yoshida, Org. Lett.  8, 2289-2292 (2006).

4. Facile Synthesis of Higly Congested 1,2-Diphosphinobenzenes from Bis(phosphine)boronium Salts, Y. Yamamoto, T. Koizumi, K. Katagiri, Y. Furuya, H. Danjo, T. Imamoto, K. Yamaguchi, Org. Lett.  8, 6103-6106 (2006).

5.  Air-stable P-chiral bidentate phosphine ligand with (1-adamantyl)methylphosphino group, T. Imamoto, A. Kumada, K. Yoshida, Chem. Lett. 36, 500-501 (2007).

6.  A Efficient Route to Benzene and Phenol Derivatives via Ring-Closing Olefin Metathesis, K. Yoshida, S. Horiuchi, N. Iwadate, F. Kawagoe, T. Imamoto, SYNLETT  2007, in press.

 

総  説

1.  T. Imamoto, A. Koide, “(R,R)-2,3-Bis(tert-butylmethylphosphino)quinoxaline (QuinoxP*) as a Ligand for Rhodium-Catalyzed Asymmetric Hydrogenation of Prochiral Amino Acid and Amine Derivatives”, Catalysts for the Fine Chemical Industry, Ed. Roberts S. Wiley-VCH, in press.

2.  T. Imamoto, “Synthesis of P-Stereogenic Phosphines via Enantioselective Alkylation”, Trivalent Phosphorus Compounds in Asymmetric Catalysis - Synthesis and Application -,  Ed. Boerner, A. Wiley-VCH, in press.

 

(2) 卒業研究、大学院修士および博士論文修了指導人数

　　　卒業研究生　5　　大学院修士論文　3　　　博士論文　0

 

(3) 国際会議出席と招待リスト

1.  T. Imamoto, “New P-Chiral Phosphine Ligands and Their Application in Asymmetric Catalysis, First International Conference on Cutting-Edge Organic Chemistry in Asia, October 16–20, 2006, Okinawa. （招待講演）．

2.  T. Imamoto, “P-Chiral Phosphine Ligands for Transition Metal-Catalyzed asymmetric Reactions” Novel Chiral Chemistries Japan, 2007, April 15–17, Tokyo. （招待講演）．

3.  T. Imamoto, “Synthesis and Application of New P-Chiral Phosphine Ligands”, 17th International Conference on Phosphorus Chemistry, 2007, April 15–21, Xiamen, China （招待講演）．

　

(4) 教 育 業 績　　

　　 なし

 

(5) 学会、国、県などへの協力など　

1. 「第４回日中若手のための有機化学シンポジウム」組織委員長

2. OMCOS 14: Organometallic Chemistry Directed towards Organic Synthesis, 2007, Nara, Member of the Organizing Committee

 

(6) 特 許

1. 2,3-ビス（ジアルキルホスフィノ）ピラジン誘導体及びその製造方法，並びに該誘導体を配位子とする金属錯体，発明者　今本恒雄，吉田和弘，杉田敬太郎，特許出願中，特願2006-201197

2.光学活性ビス（アルキニルホスフィノ）エタン−ボラン誘導体及びその製造方法，発明者　今本恒雄，吉田和弘，齋藤陽一，小出綾，特許出願中

 

(7) その他

　　なし