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1

ChemInform Abstract: Enantioselective Synthesis of Lythraceae Alkaloid Lasubine II via Optically Active 2-Isoxazoline.

Yutaka Ukaji, Masaki Ima, Takehito Yamada, Katsuhiko Inomata

Journal:

Année:

2000

Fichier:

PDF, 31 KB

2000

2

A NEW APPROACH TO THE SYNTHESIS OF A LYTHRACEAE ALKALOID, LASUBINE II

Narasaka, Koichi, Yamazaki, Shigeru, Ukaji, Yutaka

Journal:

Chemistry Letters

Année:

1985

Langue:

english

Fichier:

PDF, 3.06 MB

english, 1985

3

“ Syn-Effect ” in the Desulfonylation Reaction of α , α -Dialkylated ( E )-Allylic Sulfones

Shibayama, Atsushi, Nakamura, Tetsuya, Asada, Takahiro, Shintani, Takehiko, Ukaji, Yutaka, Kinoshita, Hideki, Inomata, Katsuhiko

Journal:

Bulletin of the Chemical Society of Japan

Année:

1997

Fichier:

PDF, 2.66 MB

1997

4

ChemInform Abstract: Asymmetric 1,3-Dipolar Cycloaddition of Nitrile Oxides to γ-Substituted Allylic Alcohols.

Yayoi Yoshida, Yutaka Ukaji, Shuhei Fujinami, Katsuhiko Inomata

Journal:

Année:

1999

Fichier:

PDF, 33 KB

1999

5

ChemInform Abstract: Development of New Asymmetric Reactions Utilizing Tartaric Acid Ester as a Chiral Auxiliary: Design of an Efficient Chiral Dinucleating System

Katsuhiko Inomata, Yutaka Ukaji

Journal:

Année:

1999

Fichier:

PDF, 25 KB

1999

6

ChemInform Abstract: Design of an Efficient Chiral System by the Control of the Coordination Environment to Metals

Journal:

Année:

1999

Fichier:

PDF, 24 KB

1999

7

ChemInform Abstract: Catalytic Asymmetric Addition of Dialkylzinc to 3,4-Dihydroisoquinoline N-Oxides Utilizing Tartaric Acid Esters as a Chiral Auxiliary.

Yutaka Ukaji, Yuuko Shimizu, Yuuichi Kenmoku, Alauddin Ahmed, Katsuhiko Inomata

Journal:

Année:

2000

Fichier:

PDF, 29 KB

2000

8

ChemInform Abstract: Asymmetric Addition of a Reformatsky-Type Reagent to 3,4-Dihydroisoquinoline N-Oxides.

Yutaka Ukaji, Yayoi Yoshida, Katsuhiko Inomata

Journal:

Année:

2000

Fichier:

PDF, 29 KB

2000

9

ChemInform Abstract: Asymmetric Addition of Reformatsky-Type Reagent to Imines Utilizing Diisopropyl Tartrate as a Chiral Auxiliary.

Yutaka Ukaji, Shoichi Takenaka, Yoshie Horita, Katsuhiko Inomata

Journal:

Année:

2001

Fichier:

PDF, 31 KB

2001

10

ChemInform Abstract: Asymmetric Bis(alkoxycarbonylation) Reaction of Terminal Olefins Catalyzed by Palladium in the Presence of Copper(I) Triflate and a Chiral Bioxazoline Ligand.

Susumu Takeuchi, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2001

Fichier:

PDF, 30 KB

2001

11

ChemInform Abstract: A Catalytic Asymmetric 1,3-Dipolar Cycloaddition of Nitrones to Allyl Alcohol.

Xia Ding, Katsumi Taniguchi, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2001

Fichier:

PDF, 27 KB

2001

12

ChemInform Abstract: Catalytic Asymmetric 1,3-Dipolar Cycloaddition of a Nitrone Bearing a Bulky Amide Moiety to γ-Substituted Allylic Alcohols.

Xia Ding, Yutaka Ukaji, Shuhei Fujinami, Katsuhiko Inomata

Journal:

Année:

2002

Fichier:

PDF, 31 KB

2002

13

“Syn-Effect” in the Isomerization of (E)-α-Fluorovinylic Sulfones to the Corresponding Allylic Sulfones under Basic Conditions.

Tetsuya Nakamura, Samar Kumar Guha, Yoshihiro Ohta, Daisuke Abe, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2003

Langue:

english

Fichier:

PDF, 146 KB

english, 2003

14

Asymmetric 1,3-Dipolar Cycloaddition of Nitrile Oxides Generated in situ by Direct Oxidation of Aldoximes.

Masamichi Tsuji, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2003

Fichier:

PDF, 117 KB

2003

15

Development of New Asymmetric Reactions Utilizing Tartaric Acid Esters as Chiral Auxiliaries. The Design of an Efficient Chiral Multinucleating System.

Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2003

Fichier:

PDF, 55 KB

2003

16

Palladium-Catalyzed Carbonylation of Homoallylic Amine Derivatives in the Presence of a Copper Co-Catalyst.

Takanori Mizutani, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2003

Fichier:

PDF, 108 KB

2003

17

The First Enantioselective Hetero Diels—Alder Reaction of Nitroso Compound Utilizing Tartaric Acid Ester as a Chiral Auxiliary.

Xia Ding, Yutaka Ukaji, Shuhei Fujinami, Katsuhiko Inomata

Journal:

Année:

2003

Fichier:

PDF, 94 KB

2003

18

“Syn-Effect” in the Conversion of (E)-α,β-Unsaturated Esters to the Corresponding β,γ-Unsaturated Esters.

Samar Kumar Guha, Atsushi Shibayama, Daisuke Abe, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2003

Fichier:

PDF, 105 KB

2003

19

“Syn-Effect” in the Desilylation Reaction of γ-Silylated Allylic and Vinylic Sulfones.

Samar Kumar Guha, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2004

Fichier:

PDF, 115 KB

2004

20

“syn-Effect” in the Conversion of (E)-α,β-Unsaturated Esters into the Corresponding β,γ-Unsaturated Esters and Aldehydes into Silyl Enol Ethers.

Samar Kumar Guha, Atsushi Shibayama, Daisuke Abe, Maki Sakaguchi, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2005

Fichier:

PDF, 30 KB

2005

21

Palladium-Catalyzed Elimination Reaction of Acyclic (E)-Allylic Acetates: The Stereochemistry Elucidated by “syn-Effect”.

Hiroyuki Takenaka, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2005

Fichier:

PDF, 24 KB

2005

22

“Syn Effect” in the 1,4-Eliminative Ring Opening of [3-Substituted (E)-1-Propenyl]oxiranes to the Corresponding 2,4-Dienyl Alcohols.

Naohiro Takeda, Takuya Chayama, Hiroyuki Takenaka, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2006

Fichier:

PDF, 23 KB

2006

23

ChemInform Abstract: One Pot Synthesis of Optically Active 4-Isoxazolines by Asymmetric Addition of Alkynylzinc Reagents to Nitrones Followed by Cyclization.

Weilin Wei, Masato Kobayashi, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2009

Fichier:

PDF, 28 KB

2009

24

ChemInform Abstract: Regioselective Oxidation of Pyrrole Derivatives with DDQ and Its Synthetic Application.

Ryoji Iwamoto, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2010

Fichier:

PDF, 60 KB

2010

25

ChemInform Abstract: Catalytic Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Imines to Allyl Alcohol Utilizing Tartaric Acid Ester as a Chiral Auxiliary.

Katsuyoshi Tanaka, Tomomitsu Kato, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 44 KB

english, 2010

26

ChemInform Abstract: O-Silylative Passerini Reaction: A New One-Pot Synthesis of α-Siloxyamides.

Takahiro Soeta, Yuuki Kojima, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 50 KB

2011

27

ChemInform Abstract: Recent Progress in a Chiral Multinucleating System Utilizing Tartaric Acid Esters

Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 20 KB

2011

28

ChemInform Abstract: Total Syntheses of Sterically Locked Phycocyanobilin Derivatives Bearing a 15Z-anti or a 15E-anti CD-Ring Component.

Kaori Nishiyama, Ayumi Kamiya, Mostafa A. S. Hammam, Hideki Kinoshita, Shuhei Fujinami, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 23 KB

2011

29

ChemInform Abstract: Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Imines to Homoallylic Alcohols.

Katsuyoshi Tanaka, Tomomitsu Kato, Shuhei Fujinami, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 26 KB

2011

30

ChemInform Abstract: Oxidation of Pyrrole-2-carboxylates with o-Chloranil and Its Synthetic Application.

Ryo Sakata, Ryoji Iwamoto, Shuhei Fujinami, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 32 KB

2011

31

ChemInform Abstract: Borinic Acid Catalyzed α-Addition to Isocyanide with Aldehyde and Water.

Takahiro Soeta, Yuuki Kojima, Yutaka Ukaji, Katsuhiko Inomaa

Journal:

Année:

2011

Fichier:

PDF, 39 KB

2011

32

ChemInform Abstract: Stereoselective One-Pot 1,4-Elimination and the [1,2]-Wittig Rearrangement of (E)-δ-(Arylmethoxy or 3-Silyl-2-propynyloxy)-Substituted Allylic Sulfones.

Susumu Horii, Isao Ishimaru, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 41 KB

2011

33

ChemInform Abstract: Selective Transformation of N-(Propargylic)hydroxylamines into 4-Isoxazolines and Acylaziridines Promoted by Metal Salts.

Norihiro Wada, Kentaro Kaneko, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 41 KB

2011

34

ChemInform Abstract: Total Synthesis of Doubly Locked 5Za15Ea-Biliverdin Derivative: A Convergent Synthesis of the E-anti Dipyrrole Component Locked with a 7-Membered Ring.

Liyi Chen, Ryoji Iwamoto, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Année:

2011

Fichier:

PDF, 29 KB

2011

35

A stereodivergent construction of β-lactam skeletons via condensation of ester enolates and a chiral imine

Tamotsu Fujisawa, Yutaka Ukaji, Tomohiro Noro, Kengo Date, Makoto Shimizu

Journal:

Tetrahedron Letters

Année:

1991

Langue:

english

Fichier:

PDF, 284 KB

english, 1991

36

Stereodivergent synthesis of optically active tertiary alcohols via addition reaction of chiral 2-acyl oxazolidine with organometallics

Yutaka Ukaji, Kouji Yamamoto, Masashi Fukui, Tamotsu Fujisawa

Journal:

Tetrahedron Letters

Année:

1991

Langue:

english

Fichier:

PDF, 276 KB

english, 1991

37

Asymmetric addition reaction of organozinc reagents to nitrones using a catalytic amount of external chiral auxiliary

Yutaka Ukaji, Yuuichi Kenmoku, Katsuhiko Inomata

Journal:

Tetrahedron: Asymmetry

Année:

1996

Langue:

english

Fichier:

PDF, 168 KB

english, 1996

38

Enantioselective Diels–Alder reaction of o-quinodimethanes by utilizing tartaric acid ester as a chiral auxiliary

Motoki Takinami, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Tetrahedron: Asymmetry

Année:

2006

Langue:

english

Fichier:

PDF, 166 KB

english, 2006

39

Preparation of novel N-sulfonylated (S,S)-2,3-diaminosuccinate-type chiral auxiliaries and application to an asymmetric 1,3-dipolar cycloaddition reaction of nitrile oxides to allyl alcohol

Masakazu Serizawa, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Tetrahedron: Asymmetry

Année:

2006

Langue:

english

Fichier:

PDF, 199 KB

english, 2006

40

Borinic acid catalyzed α-addition to isocyanide with aldehyde and water

Takahiro Soeta, Yuuki Kojima, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Tetrahedron Letters

Année:

2011

Langue:

english

Fichier:

PDF, 589 KB

english, 2011

41

Direct preparation of substituted olefins from epoxides utilizing lithium tetraalkylcerate

Yutaka Ukaji, Tamotsu Fujisawa

Journal:

Tetrahedron Letters

Année:

1988

Langue:

english

Fichier:

PDF, 246 KB

english, 1988

42

A stereocontrolled method for the synthesis of each of the four diastereomers of 34-dialkyl-substituted β-lactams using different metal ester enolates and a chiral imine

Tamotsu Fujisawa, Mitsuhiro Ichikawa, Yutaka Ukaji, Makoto Shimizu

Journal:

Tetrahedron Letters

Année:

1993

Langue:

english

Fichier:

PDF, 311 KB

english, 1993

43

Either diastereofacial differentiation in the reaction of chiral thiomethylketones with appropriate organometallics

Tamotsu Fujisawa, Isao Takemura, Yutaka Ukaji

Journal:

Tetrahedron Letters

Année:

1990

Langue:

english

Fichier:

PDF, 288 KB

english, 1990

44

Asymmetric addition of a Reformatsky-type reagent to 3,4-dihydroisoquinoline N-oxides

Yutaka Ukaji, Yayoi Yoshida, Katsuhiko Inomata *

Journal:

Tetrahedron: Asymmetry

Année:

2000

Langue:

english

Fichier:

PDF, 143 KB

english, 2000

45

Recent progress in a chiral multinucleating system utilizing tartaric acid esters

Yutaka Ukaji, Katsuhiko Inomata

Journal:

The Chemical Record

Année:

2010

Langue:

english

Fichier:

PDF, 745 KB

english, 2010

46

Diastereoface-discrimination reaction of lithium or titanium ester enolates with a chiral imine leading to stereodivergent synthesis of β-lactams

Tamotsu Fujisawa, Yutaka Ukaji, Tomohiro Noro, Kengo Date, Makoto Shimizu

Journal:

Année:

1992

Langue:

english

Fichier:

PDF, 924 KB

english, 1992

47

Asymmetric addition of phenylzinc reagents to C-alkynyl nitrones. Enantiomeric enhancement by a product-like additive

Weilin Wei, Yoshihira Hamamoto, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Tetrahedron: Asymmetry

Année:

2008

Langue:

english

Fichier:

PDF, 142 KB

english, 2008

48

Catalytic asymmetric dialkynylation reaction of α-dinitrone by utilizing tartaric acid ester as a chiral auxiliary

Masakazu Serizawa, Shuhei Fujinami, Yutaka Ukaji, Katsuhiko Inomata

Journal:

Tetrahedron: Asymmetry

Année:

2008

Langue:

english

Fichier:

PDF, 299 KB

english, 2008

49

O-Silylative Passerini Reaction: A New One-Pot Synthesis of α-Siloxyamides

Soeta, Takahiro, Kojima, Yuuki, Ukaji, Yutaka, Inomata, Katsuhiko

Journal:

Organic Letters

Année:

2010

Langue:

english

Fichier:

PDF, 211 KB

english, 2010

50

[5 + 1] Cycloaddition of C,N-Cyclic N′-Acyl Azomethine Imines with Isocyanides

Soeta, Takahiro, Tamura, Kaname, Ukaji, Yutaka

Journal:

Organic Letters

Année:

2012

Langue:

english

Fichier:

PDF, 870 KB

english, 2012