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Welcome to the Home Page of the Hayashi group in the Department of Industrial
Chemistry, Faculty of Engineering, Tokyo University of Science.
Last Update: 2010.03.16. Since 2005.6.22

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One-pot synthesis of chiral bicyclo[3.3.0]octatrienes
using diphenylprolinol silyl ether-mediated ene-type reaction
Tetrahedron, ASAP.
H. Gotoh, H. Ogino, H. Ishikawa, and Y. Hayashi
- Diphenylprolinol Silyl Ether as a Catalyst in an Asymmetric, Catalytic, and
Direct Michael Reaction of Nitroethanol with α,β-Unsaturated Aldehydes
Org. Lett.,11, 4056 (2009).
Hiroaki Gotoh, Daichi Okamura, Hayato Ishikawa, and Yujiro Hayashi
- Small organic molecule in enantioselective, direct aldol reaction in water
Chem. Commun., 2524 (2007).
S. Aratake, T. Itoh, T. Okano, T. Usui, M. Shoji and Y. Hayashi
Make an impact at the top 50 articles, published in 2007.
- Dry and Wet Prolines for Asymmetric Organic-Solvent-Free Aldehyde-Aldehyde
and Aldehyde-Ketone Aldol Reactions
Chem.
Commun., 957 (2007).
Y. Hayashi, S. Aratake, T. Itoh, T. Okano, T. Sumiya, M. Shoji
Make an impact at the top 20 articles, published in 2007.
- Structures of the Reactive Intermediates in Organocatalysis with
Diarylprolinol Ethers
Helvetica Chimica Acta., 92, 1225 (2009).
Uros Groselj, Dieter Seebach, D. Michael Badine, W. Bernd Schweizer,
Albert K. Beck, Ingo Krossing, Petra Klose, Yujiro Hayashi, Tadafumi
Uchimaru
- Asymmetric Aldol Reaction of Acetaldehyde and Isatin Derivatives for the
Total Syntheses of ent-Convolutamydine E and CPC-1 and a Half Fragment
of Madindoline A and B
Org. Lett.,11, 3854 (2009).
Takahiko Itoh, Hayato Ishikawa, and Yujiro Hayashi
- Diphenylprolinol silyl ether as a catalyst in an asymmetric, catalytic
and direct
- benzoyloxylation of aldehydes
Chem. Commun, 3083 (2009).
H. Gotoh, Y. Hayashi

- Prof. Hayashi is an invited speaker at National Organic Symposium Trust
XIII Organic Chemistry Conference at Majorda Beach Resort, Goa (May 1 - 4,
2009)
- The following 5 papers are selected in SYNFACTS
SYNFACTS 2009, 327
SYNFACTS 2009, 247
SYNFACTS 2008, 899
SYNFACTS 2008, 764
SYNFACTS 2008, 762
SYNFACTS 2008, 533
- Prof. Hayashi received "SSOCJ Daiichi-Sankyo Award for Medicinal Organic Chemistry 2008"
(2008年度有機合成化学協会 第一三共・創薬有機化学賞)
- High-Yielding Synthesis of the Anti-Influenza Neuramidase Inhibitor (−)-Oseltamivir
by Three "One-Pot" Operations
Angew. Chem. Int. Ed., 48, 1304 (2009).
Hayato Ishikawa, Takaki
Suzuki, Yujiro Hayashi
Abstracted in Resarch Highlights of Nature 457, 239
Abstracted in Science-Business eXchange Vol. 2 / No. 4 Jan. 2009
Abstracted in CHEMISTRY TODAY (現代化学)No. 456 March. 2009
Most accessed articles in 01/2009 : Ranked as 1st!

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Diphenylprolinol Silyl Ether as a Catalyst in an Enantioselective,
Catalytic Michael Reaction for the Formation of , -Disubstituted -Amino
Acid Derivatives
Chem. Asian. J., 4, 246 (2009).
Yujiro Hayashi, Kazuki Obi, Yusuke Ohta, Daichi Okamura, Hayato Ishikawa

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Diphenylprolinol Silyl Ether Catalysis
in an Asymmetric Formal Carbo [3 + 3] Cycloaddition Reaction via a Domino
Michael/Knoevenagel Condensation
Org. Lett., 11, 45 (2009).
Yujiro Hayashi, Maya Toyoshima, Hiroaki Gotoh and Hayato Ishikawa

- Asymmetric, Catalytic, and Direct Self-Aldol Reaction of Acetaldehyde Catalyzed
by Diarylprolinol
Org. Lett.,10, 5581, (2008).
Yujiro Hayashi, Sampak Samanta, Takahiko Itoh and Hayato Ishikawa

- Direct Organocatalytic Mannich Reaction of
Acetaldehyde: An Improved Catalyst and Mechanistic Insight from a Computational
Study
Angew. Chem. Int. Ed.,47, 9053 (2008).
Yujiro Hayashi, Tsubasa Okano, Takahiko Itoh, Tatsuya Urushima, Hayato Ishikawa,
Tadafumi Uchimaru

- The Asymmetric Total Synthesis of (+)-Cytotrienin A, an Ansamycin-Type
Anticancer Drug
Angew.
Chem. Int. Ed.,47, 6657 (2008).
Yujiro Hayashi, Mitsuru Shoji, Hayato Ishikawa, Junichiro Yamaguchi, Tomohiro Tamura, Hiroki Imai,
Yosuke Nishigaya, Kenichi Takabe, Hideaki Kakeya, Hiroyuki Osada

- Asymmetric Diels-Alder Reactions of
, -Unsaturated Aldehydes Catalyzed by a Diarylprolinol Silyl Ether Salt
in the Presence of Water
Angew. Chem. Int. Ed.,47, 6634 (2008).
Yujiro Hayashi, Sampak Samanta, Hiroaki Gotoh, Hayato Ishikawa

- Asymmetric Michael Reaction of Acetaldehyde Catalyzed by Diphenylprolinol
Silyl Ether)
Angew. Chem. Int. Ed.,47, 4722 (2008).
Yujiro Hayashi, Takahiko Itoh, Masahiro Ohkubo, Hayato Ishikawa

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-------------- update history of this homepage
-------------- research of the
Hayashi laboratory



------------------------- other site about chemistry
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PDF version of a research summary is here!
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Total synthesis from 2002 to present





Reaction 2002~

Angew. Chem. Int. Ed., 41, 4079 (2002).

Angew. Chem. Int. Ed., 42, 3677 (2003).

J. Am. Chem. Soc., 125, 11208 (2003).

Angew. Chem. Int Ed., 43, 1112 (2004).

Angew. Chem. Int. Ed., 44, 4212 (2005).
J. Am. Chem. Soc., 127, 16028 (2006).

Angew. Chem. Int. Ed.
45, 958 (2006)

Angew. Chem. Int. Ed. 45, 5527 (2006).

Angew. Chem. Int. Ed., 45, 6853 (2006)

Chem. Commun. 2007, 957.

Chem. Commun., 2007, 2524.

Angew.
Chem. Int. Ed. 47, 4012 (2008).

Angew.
Chem. Int. Ed. 47, 2082 (2008).
Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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