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1

Acid-catalyzed rearrangement of α-hydroxytrialkylsilanes

Kazuhiko Sakaguchi, Masato Higashino, Yasufumi Ohfune

Journal:

Year:

2003

Language:

english

File:

PDF, 501 KB

english, 2003

2

Direct conversion of methane into methanol over MoO3/SiO2 catalyst in an excess amount of water vapor

K. Aoki, M. Ohmae, T. Nanba, K. Takeishi, N. Azuma, A. Ueno, H. Ohfune, H. Hayashi, Y. Udagawa

Journal:

Catalysis Today

Year:

1998

Language:

english

File:

PDF, 180 KB

english, 1998

3

Total Synthesis of (−)-5,6,11-Trideoxytetrodotoxin and Its 4-Epimer

Umezawa, Taiki, Hayashi, Toshihiro, Sakai, Hiroshi, Teramoto, Hidetoshi, Yoshikawa, Takeshi, Izumida, Masashi, Tamatani, Yoshinori, Hirose, Tadashi, Ohfune, Yasufumi, Shinada, Tetsuro

Journal:

Organic Letters

Year:

2006

Language:

english

File:

PDF, 107 KB

english, 2006

4

Total synthesis of (-)-domoic acid. A revision of the original structure

Ohfune, Yasufumi, Tomita, Masako

Journal:

Journal of the American Chemical Society

Year:

1982

Language:

english

File:

PDF, 435 KB

english, 1982

5

Conversion of ketones into lactones with benzeneseleninic acid and hydrogen peroxide (benzeneperoxyseleninic acid): a new reagent for the Baeyer-Villiger reaction

Grieco, Paul A., Yokoyama, Yuusaku, Gilman, Sydney, Ohfune, Yasufumi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1977

Language:

english

File:

PDF, 166 KB

english, 1977

6

Total Synthesis of a Monomeric Phloroglucinol Derivative Isolated from Myrtus communis

Nishimura, Eiji, Ohfune, Yasufumi, Shinada, Tetsuro

Journal:

Chemistry Letters

Year:

2015

Language:

english

File:

PDF, 637 KB

english, 2015

7

Asymmetric syntheses of 5- and 6-membered carbocyclic serine analogs via an intramolecular Strecker synthesis

Yasufumi Ohfune, Kousuke Nanba, Ichinori Takada, Toshiyuki Kan, Manabu Horikawa, Terumi Nakajima

Journal:

Year:

1997

Language:

english

File:

PDF, 66 KB

english, 1997

8

ChemInform Abstract: Stereoselective Synthesis of a Marine Natural Product, (.+-.)-6β- Isovaleroxylabda-8,13-diene-7α,15-diol.

W. GAO, K. SAKAGUCHI, S. ISOE, Y. OHFUNE

Journal:

Year:

1997

File:

PDF, 40 KB

1997

9

ChemInform Abstract: Syntheses of trans-3′-Substituted-CCG-IV Analogues and Their Characterization to Ionotropic Glutamate Receptors.

K. SHIMAMOTO, Y. SHIGERI, T. NAKAJIMA, N. YUMOTO, S. YOSHIKAWA, Y. OHFUNE

Journal:

Year:

1997

File:

PDF, 33 KB

1997

10

ChemInform Abstract: Asymmetric Syntheses of Both Enantiomers of α-Benzylserine and . alpha.-Carboxymethylserine.

M. HORIKAWA, T. NAKAJIMA, Y. OHFUNE

Journal:

Year:

1997

File:

PDF, 31 KB

1997

11

ChemInform Abstract: Olefination of Dialkyl Squarates by Wittig and Horner—Emmons Reactions. A Facile Synthesis of 3,4-Dioxo-1-cyclobutene-1-acetic Acid Esters.

K. HAYASHI, T. SHINADA, K. SAKAGUCHI, M. HORIKAWA, Y. OHFUNE

Journal:

Year:

1998

File:

PDF, 39 KB

1998

12

ChemInform Abstract: Asymmetric Synthesis of α,α-Disubstituted α-Amino Acids via an Intramolecular Strecker Synthesis

Y. OHFUNE, M. HORIKAWA

Journal:

Year:

1998

File:

PDF, 29 KB

1998

13

ChemInform Abstract: An Efficient Synthesis of α-Acyloxyketone by Cu(acac)2-Catalyzed Insertion Reaction of α-Diazoketone to Carboxylic Acid.

T. SHINADA, T. KAWAKAMI, H. SAKAI, I. TAKADA, Y. OHFUNE

Journal:

Year:

1998

File:

PDF, 37 KB

1998

14

ChemInform Abstract: Internal Activation of Acrylate-Type Dienophiles for the Diels—Alder Reaction. Stereoselective Synthesis of Conformationally Constrained Glutamate Analogues.

Y. OHFUNE, T. KAN, T. NAKAJIMA

Journal:

Year:

1998

File:

PDF, 40 KB

1998

15

ChemInform Abstract: Syntheses of Optically Active 2-Substituted Cyclopropanecarboxylic Acids from Chiral α-Hydroxysilane Derivatives.

K. SAKAGUCHI, H. MANO, Y. OHFUNE

Journal:

Year:

1998

File:

PDF, 36 KB

1998

16

ChemInform Abstract: Acid-Catalyzed Rearrangement of α-Hydroxycyclopropylsilanes.

K. SAKAGUCHI, M. FUJITA, Y. OHFUNE

Journal:

Year:

1998

File:

PDF, 32 KB

1998

17

ChemInform Abstract: Incorporation of α-Substituted Serine Analogue into Peptide via a Novel O,N-Migration.

M. HORIKAWA, T. NAKAJIMA, Y. OHFUNE

Journal:

Year:

1998

File:

PDF, 31 KB

1998

18

ChemInform Abstract: Direct Conversion of 1,2-Diol into Allyl Sulfide. Regioselective Transformation of (-)-Quinic Acid to (-)-Shikimic Acid.

T. SHINADA, Y. YOSHIDA, Y. OHFUNE

Journal:

Year:

1998

File:

PDF, 32 KB

1998

19

ChemInform Abstract: Intramolecular [2 + 2] Photocycloaddition of Fumaramic Acid Ester Derivatives. Syntheses of 2-(2,3-Dicarboxycyclobutyl)glycines.

Hidekazu Tsujishima, Keiko Shimamoto, Yasushi Shigeri, Noboru Yumoto, Yasufumi Ohfune

Journal:

Year:

1999

File:

PDF, 35 KB

1999

20

ChemInform Abstract: Efficient Synthesis of a Novel 4-Hydroxy-2,3-dioxocyclobut-1-enyl Group Containing Amino Acids.

Tetsuro Shinada, Ken-ichi Hayashi, Toshihiro Hayashi, Yasutaka Yoshida, Manabu Horikawa, Keiko Shimamoto, Yasushi Shigeri, Noboru Yumoto, Yasufumi Ohfune

Journal:

Year:

2000

File:

PDF, 31 KB

2000

21

ChemInform Abstract: Reverse Brook Rearrangement of 2-Alkynyl Trialkylsilyl Ether. Synthesis of Optically Active (1-Hydroxy-2-alkynyl)trialkylsilane.

Kazuhiko Sakaguchi, Masato Fujita, Hiroyuki Suzuki, Masato Higashino, Yasufumi Ohfune

Journal:

Year:

2000

File:

PDF, 33 KB

2000

22

ChemInform Abstract: Squaric Acid Derivatives Prevent the Removal of N-Cbz and N-Fmoc Groups under Catalytic Hydrogenation Reaction.

Tetsuro Shinada, Ken-ichi Hayashi, Yasutaka Yoshida, Yasufumi Ohfune

Journal:

Year:

2001

File:

PDF, 31 KB

2001

23

ChemInform Abstract: Total Synthesis and Absolute Structure of Manzacidin A and C.

Kosuke Namba, Tetsuro Shinada, Toshiyuki Teramoto, Yasufumi Ohfune

Journal:

Year:

2001

File:

PDF, 35 KB

2001

24

ChemInform Abstract: Novel and Efficient Transformation of α-Amino Nitrile to α-Imino and α-Amide Nitriles in Asymmetric Strecker Synthesis.

Kosuke Namba, Masanori Kawasaki, Ichinori Takada, Seiji Iwama, Masashi Izumida, Tetsuro Shinada, Yasufumi Ohfune

Journal:

Year:

2001

File:

PDF, 38 KB

2001

25

ChemInform Abstract: Indium-Mediated Barbier-Type Allylation of Aldimines in Alcoholic Solvents.

Tirayut Vilaivan, Chutima Winotapan, Tetsuro Shinada, Yasufumi Ohfune

Journal:

Year:

2002

File:

PDF, 30 KB

2002

26

1,2-Dioxo-3-isopropyloxy-4-methyl-3-cyclobutene as a Nucleophilic Synthon. Synthesis of Sq-Containing Cinnamic Acid Derivatives.

Tetsuro Shinada, Yuuki Ooyama, Ken-ichi Hayashi, Yasufumi Ohfune

Journal:

Year:

2002

File:

PDF, 29 KB

2002

27

Asymmetric Strecker Route Toward the Synthesis of Biologically Active α,α-Disubstituted α-Amino Acids

Yasufumi Ohfune, Tetsuro Shinada

Journal:

Year:

2003

File:

PDF, 54 KB

2003

28

Stereocontrolled Synthesis of a Potent Agonist of Group II Metabotropic Glutamate Receptors, (+)-LY354740, and Its Related Derivatives.

Yasufumi Ohfune, Takashi Demura, Seiji Iwama, Hiromi Matsuda, Kosuke Namba, Keiko Shimamoto, Tetsuro Shinada

Journal:

Year:

2003

File:

PDF, 72 KB

2003

29

Synthesis of Novel Amino Squaric Acids via Addition of Dianion Enolates Derived from N-Boc Amino Acid Esters.

Toshikazu Ishida, Tetsuro Shinada, Yasufumi Ohfune

Journal:

Year:

2005

File:

PDF, 21 KB

2005

30

Application of Modular Nucleophilic Glycine Equivalents for Truly Practical Asymmetric Synthesis of β-Substituted Pyroglutamic Acids.

Vadim A. Soloshonok, Hisanori Ueki, Trevor K. Ellis, Takeshi Yamada, Yasufumi Ohfune

Journal:

Year:

2005

File:

PDF, 25 KB

2005

31

Indium-Mediated Asymmetric Barbier-Type Allylation of Aldimines in Alcoholic Solvents: Synthesis of Optically Active Homoallylic Amines.

Tirayut Vilaivan, Chutima Winotapan, Vorawit Banphavichit, Tetsuro Shinada, Yasufumi Ohfune

Journal:

Year:

2005

File:

PDF, 37 KB

2005

32

Palladium-Catalyzed Allylic Alkylation of Optically Active α-Alkenyl-α-acyloxytrialkylsilane.

Kazuhiko Sakaguchi, Takeshi Yamada, Yasufumi Ohfune

Journal:

Year:

2005

File:

PDF, 28 KB

2005

33

Total Synthesis of (-)-Kaitocephalin.

Masanori Kawasaki, Tetsuro Shinada, Makoto Hamada, Yasufumi Ohfune

Journal:

Year:

2006

File:

PDF, 11 KB

2006

34

ChemInform Abstract: Thiol Addition to t-Butyl Methyl Squarate. Efficient Synthesis of Novel Sulfur-Linked Squaryl Group-Containing Glutamate Analogues.

Tetsuro Shinada, Atsuko Yamasaki, Yu-ichi Kiniwa, Keiko Shimamoto, Yasufumi Ohfune

Journal:

Year:

2009

File:

PDF, 28 KB

2009

35

ChemInform Abstract: Asymmetric Synthesis of α-Substituted α-Amino Acids: Strecker and Claisen Approaches

Yasufumi Ohfune, Kazuhiko Sakaguchi, Tetsuro Shinada

Journal:

Year:

2010

File:

PDF, 12 KB

2010

36

ChemInform Abstract: Synthesis of Optically Active α-(Allenyl)- and α-Substituted-α-(allenyl)glycines.

Takuya Okada, Naoko Oda, Hiroyuki Suzuki, Kazuhiko Sakaguchi, Yasufumi Ohfune

Journal:

Year:

2010

File:

PDF, 54 KB

2010

37

ChemInform Abstract: Microwave-Assisted Selective Synthesis of 2H-Indazoles via Double Sonogashira Coupling of 3,4-Diiodopyrazoles and Bergman—Masamune Cycloaromatization.

Hayato Ichikawa, Haruhiko Ohfune, Yoshihide Usami

Journal:

Year:

2010

File:

PDF, 33 KB

2010

38

ChemInform Abstract: Mild and Catalytic Transesterification Reaction Using K2HPO4 for the Synthesis of Methyl Esters.

Tetsuro Shinada, Makoto Hamada, Kota Miyoshi, Masato Higashino, Taiki Umezawa, Yasufumi Ohfune

Journal:

Year:

2010

File:

PDF, 39 KB

2010

39

ChemInform Abstract: Stereoselective anti-SN2′ Mitsunobu Reaction of α-Hydroxy-α-Alkenylsilanes.

Masato Higashino, Naoko Ikeda, Tetsuro Shinada, Kazuhiko Sakaguchi, Yasufumi Ohfune

Journal:

Year:

2011

File:

PDF, 49 KB

2011

40

ChemInform Abstract: Synthesis of 13C-Labeled 5,6,11-Trideoxytetrodotoxin.

Taiki Umezawa, Tetsuro Shinada, Yasufumi Ohfune

Journal:

Year:

2011

File:

PDF, 19 KB

2011

41

ChemInform Abstract: Au-Catalyzed Cyclization of Allenylsilanes. Regioselective Conversion to 2-Amino-4-silylmethylene γ-Butyrolactone.

Takuya Okada, Kazuhiko Sakaguchi, Tetsuro Shinada, Yasufumi Ohfune

Journal:

Year:

2012

File:

PDF, 48 KB

2012

42

Chirality transferring [3,3] sigmatropic rearrangement of (1-acyloxy-2-alkenyl)trialkylsilane synthesis of optically active vinylsilane-containing α-amino acid

Kazuhiko Sakaguchi, Hiroyuki Suzuki, Yasufumi Ohfune

Journal:

Year:

2001

Language:

english

File:

PDF, 266 KB

english, 2001

43

Enantio- and Diastereoselective Construction of α,α-Disubstituted α-Amino Acids for the Synthesis of Biologically Active Compounds

Yasufumi Ohfune, Tetsuro Shinada

Journal:

European Journal of Organic Chemistry

Year:

2005

Language:

english

File:

PDF, 382 KB

english, 2005

44

Multiple Wagner-Meerwein Shift. Biogenesis-like conversion of (±)-Δ7,8-Protoilludene to (±)-Hirsutene and related reactions

Kiyoharu Hayano, Yasufumi Ohfune, Haruhisa Shirahama, Takeshi Matsumoto

Journal:

Helvetica Chimica Acta

Year:

1981

Language:

english

File:

PDF, 859 KB

english, 1981

45

Internal activation of acrylate-type dienophiles in Diels-Alder reactions

Toshiyuki Kan, Yasufumi Ohfune

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 201 KB

english, 1995

46

Synthesis of conformationally restricted analogs of kainic acid. Is the conformation of the C4-substituent of kainoid important to its neuroexcitatory activity?

Kimiko Hashimoto, Yasufumi Ohfune, Haruhisa Shirahama

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 234 KB

english, 1995

47

Stereoselective synthesis of a marine natural product, (±)-6β-isovaleroxylabda-8,13-diene-7α,15-diol

Wei-guo Gao, Kazuhiko Sakaguchi, Sachihiko Isoe, Yasufumi Ohfune

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 180 KB

english, 1996

48

Syntheses of trans-3′-substituted-CCG-IV analogs and their characterization to ionotropic glutamate receptors

Keiko Shimamoto, Yasushi Shigeri, Terumi Nakajima, Noboru Yumoto, Susumu Yoshikawa, Yasufumi Ohfune

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

1996

Language:

english

File:

PDF, 335 KB

english, 1996

49

Operationally convenient, efficient asymmetric synthesis of enantiomerically pure 4-aminoglutamic acids via methylene dimerization of chiral glycine equivalents with dichloromethane

Vadim A. Soloshonok, Takeshi Yamada, Hisanori Ueki, Anna M. Moore, Tanner K. Cook, Kelsey L. Arbogast, Anatolii V. Soloshonok, Collin H. Martin, Yasufumi Ohfune

Journal:

Year:

2006

Language:

english

File:

PDF, 468 KB

english, 2006

50

Total synthesis of (−)-amathaspiramide F

Kazuhiko Sakaguchi, Miki Ayabe, Yusuke Watanabe, Takuya Okada, Kazushige Kawamura, Tetsuro Shinada, Yasufumi Ohfune

Journal:

Year:

2009

Language:

english

File:

PDF, 704 KB

english, 2009