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1

Asymmetric Retro-[1,4] Brook Rearrangement and Its Stereochemical Course at Silicon

Atsuo Nakazaki, Takeshi Nakai, Katsuhiko Tomooka

Journal:

Angewandte Chemie International Edition

Year:

2006

Language:

english

File:

PDF, 147 KB

english, 2006

2

Asymmetric Synthesis of Chiral Silacarboxylic Acids and Their Ester Derivatives

Kazunobu Igawa, Naoto Kokan, Katsuhiko Tomooka

Journal:

Angewandte Chemie International Edition

Year:

2010

Language:

english

File:

PDF, 340 KB

english, 2010

3

ChemInform Abstract: Enantioselective Carboxylation of α-Methoxybenzyllithium Generated via Asymmetric Lithiation with a t-BuLi/Chiral Bis(oxazoline) Complex.

Nobuyuki Komine, Lan-Fang Wang, Katsuhiko Tomooka, Takeshi Nakai

Journal:

Year:

1999

File:

PDF, 33 KB

1999

4

Stereocontrolled asymmetric total synthesis of protomycinolide IV

Suzuki, Keisuke., Tomooka, Katsuhiko., Katayama, Eiji., Matsumoto, Takashi., Tsuchihashi, Genichi.

Journal:

Journal of the American Chemical Society

Year:

1986

Language:

english

File:

PDF, 1.21 MB

english, 1986

5

Directing Group-Controlled Hydrosilylation: Regioselective Functionalization of Alkyne

Kawasaki, Yuuya, Ishikawa, Youhei, Igawa, Kazunobu, Tomooka, Katsuhiko

Journal:

Journal of the American Chemical Society

Year:

2011

Language:

english

File:

PDF, 2.40 MB

english, 2011

6

Partial Oxidation of Alkenylsilanes with Ozone: A Novel Stereoselective Approach to the Diol and Triol Derivatives

Igawa, Kazunobu, Sakita, Kyohei, Murakami, Masanori, Tomooka, Katsuhiko

Journal:

Year:

2008

Language:

english

File:

PDF, 112 KB

english, 2008

7

Differentiation‐inducing factor‐1 suppresses cyclin D1‐induced cell proliferation of MCF‐7 breast cancer cells by inhibiting S6K‐mediated signal transducer and activator of transcription 3 synthesis

Tetsuo, Fumi, Arioka, Masaki, Miura, Koichi, Kai, Misato, Kubo, Momoko, Igawa, Kazunobu, Tomooka, Katsuhiko, Takahashi‐Yanaga, Fumi, Nishimura, Fusanori, Sasaguri, Toshiyuki

Journal:

Year:

2019

Language:

english

File:

PDF, 1.65 MB

english, 2019

8

External chiral ligand-induced enantioselective versions of the [2,3]-Wittig sigmatropic rearrangement

Katsuhiko Tomooka, Nobuyuki Komine, Takeshi Nakai

Journal:

Year:

2000

Language:

english

File:

PDF, 144 KB

english, 2000

9

Enantioselektive [1,2]-Wittig-Umlagerung mit einem externen chiralen Liganden

Katsuhiko Tomooka, Kyoko Yamamoto, Takeshi Nakai

Journal:

Angewandte Chemie

Year:

1999

Language:

german

File:

PDF, 87 KB

german, 1999

10

Enantioselective [1,2] Wittig Rearrangement Using an External Chiral Ligand

Katsuhiko Tomooka, Kyoko Yamamoto, Takeshi Nakai

Journal:

Angewandte Chemie International Edition

Year:

1999

Language:

english

File:

PDF, 89 KB

english, 1999

11

Stereoselective Synthesis of Highly Functionalized C-Glycosides based on Acetal [1,2] and [1,4] Wittig Rearrangements

Katsuhiko Tomooka, Hiroshi Yamamoto, Takeshi Nakai

Journal:

Angewandte Chemie

Year:

2000

Language:

english

File:

PDF, 95 KB

english, 2000

12

Stereoselective Total Synthesis of Zaragozic Acid A based on an Acetal [1,2] Wittig Rearrangement

Katsuhiko Tomooka, Makoto Kikuchi, Kazunobu Igawa, Masaki Suzuki, Ping-Huai Keong, Takeshi Nakai

Journal:

Angewandte Chemie

Year:

2000

Language:

english

File:

PDF, 109 KB

english, 2000

13

Stereoselective Total Synthesis of Zaragozic Acid A based on an Acetal [1,2] Wittig Rearrangement

Katsuhiko Tomooka, Makoto Kikuchi, Kazunobu Igawa, Masaki Suzuki, Ping-Huai Keong, Takeshi Nakai

Journal:

Angewandte Chemie International Edition

Year:

2000

Language:

english

File:

PDF, 108 KB

english, 2000

14

Stereoselective Synthesis of Highly Functionalized C-Glycosides based on Acetal [1,2] and [1,4] Wittig Rearrangements

Katsuhiko Tomooka, Hiroshi Yamamoto, Takeshi Nakai

Journal:

Angewandte Chemie International Edition

Year:

2000

Language:

english

File:

PDF, 95 KB

english, 2000

15

γ-Silyl Group Effect in Hydroalumination and Carbolithiation of Propargylic Alcohols

Kazunobu Igawa, Katsuhiko Tomooka

Journal:

Angewandte Chemie

Year:

2006

Language:

english

File:

PDF, 198 KB

english, 2006

16

Asymmetric Retro-[1,4] Brook Rearrangement and Its Stereochemical Course at Silicon

Atsuo Nakazaki, Takeshi Nakai, Katsuhiko Tomooka

Journal:

Angewandte Chemie

Year:

2006

Language:

english

File:

PDF, 147 KB

english, 2006

17

Asymmetric Synthesis of Chiral Silacarboxylic Acids and Their Ester Derivatives

Kazunobu Igawa, Naoto Kokan, Katsuhiko Tomooka

Journal:

Angewandte Chemie

Year:

2010

Language:

english

File:

PDF, 340 KB

english, 2010

18

γ-Silyl Group Effect in Hydroalumination and Carbolithiation of Propargylic Alcohols

Kazunobu Igawa, Katsuhiko Tomooka

Journal:

Angewandte Chemie International Edition

Year:

2006

Language:

english

File:

PDF, 198 KB

english, 2006

19

ChemInform Abstract: Double Stereocontrol in α-Alkylation of Chiral Lithium Dienolates Generated from (E)-α,β-Olefinic Amides and Esters.

Katsuhiko Tomooka, Atsushi Nagasawa, Takeshi Nakai

Journal:

Year:

1999

File:

PDF, 33 KB

1999

20

ChemInform Abstract: Enantioselective Carbanion Cyclization of 5-Alkenyl Carbamates Induced by Asymmetric Lithiation with s-Butyllithium/(-)-Sparteine System.

Katsuhiko Tomooka, Nobuyuki Komine, Tomoya Sasaki, Hideo Shimizu, Takeshi Nakai

Journal:

Year:

1999

File:

PDF, 28 KB

1999

21

ChemInform Abstract: Stereochemical Features of the [1,2]-Wittig Rearrangement of O-Glycosides Derived from D-Galactono- and D-Xylono-γ-lactones: A New Approach to the Core Part of Zaragozic Acids.

Katsuhiko Tomooka, Makoto Kikuchi, Kazunobu Igawa, Ping-Huai Keong, Takeshi Nakai

Journal:

Year:

1999

File:

PDF, 36 KB

1999

22

ChemInform Abstract: Lanthanide(III) Reagents

Takeshi Nakai, Katsuhiko Tomooka

Journal:

Year:

1999

File:

PDF, 23 KB

1999

23

ChemInform Abstract: Olefinic Stereoselection in the [2,3]-Wittig Rearrangement of α,β-Disubstituted Allylic Ethers Forming Trisubstituted Olefins.

Katsuhiko Tomooka, Tatsuya Igarashi, Naoyuki Kishi, Takeshi Nakai

Journal:

Year:

1999

File:

PDF, 35 KB

1999

24

ChemInform Abstract: Enantioselective Reactions of α-Methoxybenzyllithium Generated by t-BuLi/Chiral Bis(oxazoline) Complex with Aldehydes.

Katsuhiko Tomooka, Lan-Fang Wang, Nobuyuki Komine, Takeshi Nakai

Journal:

Year:

1999

File:

PDF, 32 KB

1999

25

ChemInform Abstract: 1,2-Carbamoyl Migration on Enantio-Enriched α-Lithioalkyl Carbamates Generated with s-Butyllithium/Sparteine: Steric Course and Mechanism.

Katsuhiko Tomooka, Hideo Shimizu, Tadashi Inoue, Hikaru Shibata, Takeshi Nakai

Journal:

Year:

2000

File:

PDF, 30 KB

2000

26

ChemInform Abstract: Enantioselective [1,2] Wittig Rearrangement Using an External Chiral Ligand.

Katsuhiko Tomooka, Kyoko Yamamoto, Takeshi Nakai

Journal:

Year:

2000

File:

PDF, 29 KB

2000

27

ChemInform Abstract: A Novel Aryl Migration from Silicon to Carbon: An Efficient Approach to Asymmetric Synthesis of α-Aryl β-Hydroxy Cyclic Amines and Silanols.

Katsuhiko Tomooka, Atsuo Nakazaki, Takeshi Nakai

Journal:

Year:

2000

File:

PDF, 34 KB

2000

28

ChemInform Abstract: Generation and Asymmetric Michael Addition Reaction of Chirally N-Protected α-Aminoalkyl Cyanocuprates.

Takahiro Tomoyasu, Katsuhiko Tomooka, Takeshi Nakai

Journal:

Year:

2000

File:

PDF, 33 KB

2000

29

ChemInform Abstract: Modified Cyclization of Enantio-Enriched α-Homoallyloxy-alkyllithiums Generated by Sn—Li Transmetalation: Effects of Additives and Structural Requirement.

Nobuyuki Komine, Katsuhiko Tomooka, Takeshi Nakai

Journal:

Year:

2000

File:

PDF, 39 KB

2000

30

ChemInform Abstract: Stereochemistry and Mechanism of Vinyl-Migrating [1,2]-Wittig Rearrangement of α-Lithioalkyl Vinyl Ethers.

Katsuhiko Tomooka, Tadashi Inoue, Takeshi Nakai

Journal:

Year:

2000

File:

PDF, 27 KB

2000

31

ChemInform Abstract: External Chiral Ligand-Induced Enantioselective Lithiation/SE2 Reactions of Isochroman and Phthalan.

Katsuhiko Tomooka, Lan-Fang Wang, Fumiaki Okazaki, Takeshi Nakai

Journal:

Year:

2000

File:

PDF, 38 KB

2000

32

ChemInform Abstract: ortho-[2,2]-Wittig Rearrangement of Benzyl Propargyl Ethers: Striking Preference over the Competing [1,2]-Wittig Shift.

Katsuhiko Tomooka, Manabu Harada, Takayuki Hanji, Takeshi Nakai

Journal:

Year:

2001

File:

PDF, 32 KB

2001

33

ChemInform Abstract: Stereoselective Synthesis of Highly Functionalized C-Glycosides Based on Acetal [1,2] and [1,4] Wittig Rearrangements.

Katsuhiko Tomooka, Hiroshi Yamamoto, Takeshi Nakai

Journal:

Year:

2001

File:

PDF, 33 KB

2001

34

ChemInform Abstract: Stereoselective Total Synthesis of Zaragozic Acid A Based on an Acetal [1,2] Wittig Rearrangement.

Katsuhiko Tomooka, Makoto Kikuchi, Kazunobu Igawa, Masaki Suzuki, Ping-Huai Keong, Takeshi Nakai

Journal:

Year:

2001

File:

PDF, 35 KB

2001

35

ChemInform Abstract: Chiral Coordinating Agent-Based Enantiocontrol in Carbanion Reactions

Katsuhiko Tomooka

Journal:

Year:

2001

File:

PDF, 24 KB

2001

36

Asymmetric Synthesis of Enantio-Enriched Acyclic α-Amino Alkylstannanes and Rearrangement Behavior of Carbanions Thereof.

Takahiro Tomoyasu, Katsuhiko Tomooka, Takeshi Nakai

Journal:

Year:

2003

File:

PDF, 180 KB

2003

37

Enantioselective Synthesis by Lithiation Adjacent to Oxygen and Subsequent Rearrangement

David M. Hodgson, Katsuhiko Tomooka, Emmanuel Gras

Journal:

Year:

2003

File:

PDF, 53 KB

2003

38

Anionic Ring-Contraction Reaction of Cyclic Acetal System: Stereoselective Approach to Multi-Functionalized Oxetanes.

Masaki Suzuki, Katsuhiko Tomooka

Journal:

Year:

2004

File:

PDF, 157 KB

2004

39

Lithium in Organic Synthesis

Katsuhiko Tomooka, Masato Ito

Journal:

Year:

2005

File:

PDF, 8 KB

2005

40

Rearrangements of Organolithium Compounds

Katsuhiko Tomooka

Journal:

Year:

2005

File:

PDF, 8 KB

2005

41

ChemInform Abstract: Planar Chiral Organosulfur Cycles.

Kazuhiro Uehara, Katsuhiko Tomooka

Journal:

Year:

2010

File:

PDF, 36 KB

2010

42

ChemInform Abstract: Addition-Type Oxidation of Silylalkene Using Ozone: An Efficient Approach for Acyloin and Its Derivatives.

Kazunobu Igawa, Yuuya Kawasaki, Katsuhiko Tomooka

Journal:

Year:

2011

File:

PDF, 30 KB

2011

43

ChemInform Abstract: Synthesis and Stereochemical Behavior of (E)-Cyclononene Derivatives.

Katsuhiko Tomooka, Hiroko Inoue, Kazunobu Igawa

Journal:

Year:

2011

File:

PDF, 31 KB

2011

44

Copolymerization of 7-Methylenebicyclo[4.1.0]heptane with Carbon Monoxide Initiated by Optically Active Palladium Complexes

Daisuke Takeuchi, Ayami Yasuda, Takeshi Okada, Junpei Kuwabara, Kohtaro Osakada, Katsuhiko Tomooka

Journal:

Helvetica Chimica Acta

Year:

2006

Language:

english

File:

PDF, 170 KB

english, 2006

45

Recent Developments in the [1,2]-Wittig Rearrangement

Katsuhiko Tomooka, Hiroshi Yamamoto, Takeshi Nakai

Journal:

European Journal of Organic Chemistry

Year:

1997

Language:

english

File:

PDF, 588 KB

english, 1997

46

[2,3]Wittig rearrangement of enantiomerically-defined α-(allyloxy)stannanes: Solid evidence for inversion of configuration at the lithium- bearing migrating terminus

Katsuhiko Tomooka, Tatsuya Igarashi, Masashi Watanabe, Takeshi Nakai

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 222 KB

english, 1992

47

1,4-Remote stereocontrol via asymmetric [2,3]-Wittig rearrangements

Katsuhiko Tomooka, Ping-Huai Keong, Takeshi Nakai

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 210 KB

english, 1995

48

Unique radical addition reactions onto perfluoro-enol esters

Ta-i Narita, Tokio Hagiwara, Hiroshi Hamana, Katsuhiko Tomooka, Yu-Zhong Liu, Takeshi Nakai

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 208 KB

english, 1995

49

Asymmetric synthesis of (−)- and (+)-kainic acid using a planar chiral amide as a chiral building block

Katsuhiko Tomooka, Toshiyuki Akiyama, Phewluangdee Man, Masaki Suzuki

Journal:

Tetrahedron Letters

Year:

2008

Language:

english

File:

PDF, 183 KB

english, 2008

50

On the steric course of transmetallations on enantiomerically defined α-carbamoyloxy organolithiums

Katsuhiko Tomooka, Hideo Shimizu, Takeshi Nakai

Journal:

Journal of Organometallic Chemistry

Year:

2001

Language:

english

File:

PDF, 82 KB

english, 2001