Masanori Utaka: search on Z-Library

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1

Me3SiCl-NaI-CH3CN as an efficient and practical reducing agent for benzylic alcohols

Takashi Sakai, Kazuyoshi Miyata, Masanori Utaka, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 138 KB

english, 1987

2

Oxidation of Alcohols with Electrolytic Manganese Dioxide. Its Application for the Synthesis of Insect Pheromones

Tsuboi, Sadao, Ishii, Naomi, Sakai, Takashi, Tari, Isao, Utaka, Masanori

Journal:

Bulletin of the Chemical Society of Japan

Year:

1990

File:

PDF, 786 KB

1990

3

Synthesis of endo- and exo-5-[4(5)-imidazolyl]bicyclo[2.2.1]hept-endo-2-yl trans-cinnamates

Utaka, Masanori, Takeda, Akira, Bender, Myron L.

Journal:

Journal of Organic Chemistry

Year:

1974

Language:

english

File:

PDF, 858 KB

english, 1974

4

Regio- and enantioselective synthesis of (S)-1-acetoxy-2-hydroxy-4-alkanones by use of bakers' yeast reduction of 1-acetoxy-2,4-alkanediones

Masanori Utaka, Hisatoshi Ito, Toshiyuki Mizumoto, Sadao Tsuboi

Journal:

Tetrahedron: Asymmetry

Year:

1995

Language:

english

File:

PDF, 98 KB

english, 1995

5

Asymmetric reduction of the prochiral carbonyl group of aliphatic .gamma.- and .delta.-keto acids by use of fermenting bakers' yeast

Utaka, Masanori, Watabu, Hisashi, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 773 KB

english, 1987

6

CONVENIENT PREPARATION OF 1,2-CYCLOHEXANEDIONES

Utaka, Masanori, Matsushita, Seishiro, Takeda, Akira

Journal:

Chemistry Letters

Year:

1980

Language:

english

File:

PDF, 3.69 MB

english, 1980

7

A facile synthesis of optically pure L-armentomycin and its D-isomer.Highly enantioselective reduction of the CC double bond of methyl (E)- and (Z)-2,4,4-trichloro-2-butenoate by using baker's yeast

Masanori Utaka, Satoshi Konishi, Toshiyasu Okubo, Sadao Tsuboi, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 192 KB

english, 1987

8

NEW SYNTHESIS OF JASMINE LACTONE AND RELATED δ-LACTONES FROM 3-SUBSTITUTED 1,2-CYCLOHEXANEDIONES BY USE OF DYE-SENSITIZED PHOTOOXYGENATION

Utaka, Masanori, Kuriki, Hidesuke, Sakai, Takashi, Takeda, Akira

Journal:

Chemistry Letters

Year:

1983

Language:

english

File:

PDF, 3.59 MB

english, 1983

9

Ortho Effect. VI

HOJO, Masaru, UTAKA, Masanori, YOSHIDA, Zen-ichi

Journal:

Journal of Synthetic Organic Chemistry Japan

Year:

1965

File:

PDF, 633 KB

1965

10

Low-temperature method for enhancement of enantioselectivity in the lipase-catalyzed kinetic resolutions of solketal and some chiral alcohols

Takashi Sakai, Tetsuo Kishimoto, Yukie Tanaka, Tadashi Ema, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 223 KB

english, 1998

11

Kinetic Resolution of Racemic 2-Substituted 3-Cyclopenten-1-ols by Lipase-Catalyzed Transesterifications: A Rational Strategy To Improve Enantioselectivity

Ema, Tadashi, Maeno, Soichi, Takaya, Yusuke, Sakai, Takashi, Utaka, Masanori

Journal:

Journal of Organic Chemistry

Year:

1996

Language:

english

File:

PDF, 215 KB

english, 1996

12

Dye-sensitized photooxygenation of 1,2-cyclopentanediones in methanol

Utaka, Masanori, Nakatani, Manabu, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1986

Language:

english

File:

PDF, 291 KB

english, 1986

13

Copper(II)-catalysed oxidation of quercetin and 3-hydroxyflavone

Utaka, Masanori, Takeda, Akira

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1985

Language:

english

File:

PDF, 193 KB

english, 1985

14

Asymmetric Reduction of Carbon–Carbon Double Bonds of Conjugated Enones with Fermenting Bakers’ Yeast

Sakai, Takashi, Matsumoto, Syuji, Hidaka, Syukou, Imajo, Norihisa, Tsuboi, Sadao, Utaka, Masanori

Journal:

Bulletin of the Chemical Society of Japan

Year:

1991

File:

PDF, 584 KB

1991

15

Differences in Protein Structure and Similarities in Catalytic Function of Two l -Stereoselective Carbonyl Reductases from Bakers’ Yeast

Nakajima, Nobuyoshi, Ishihara, Kohji, Kondo, Shin-ichi, Tsuboi, Sadao, Utaka, Masanori, Nakamura, Kaoru

Journal:

Bioscience Biotechnology and Biochemistry

Year:

1994

Language:

english

File:

PDF, 461 KB

english, 1994

16

A Convenient Reductive Removal of Benzylic Hydroxyl and Trimethylsilyloxyl Groups with Me 3 SiCl–NaI–MeCN Reagent

Sakai, Takashi, Miyata, Kazuyoshi, Tsuboi, Sadao, Takeda, Akira, Utaka, Masanori, Torii, Sigeru

Journal:

Bulletin of the Chemical Society of Japan

Year:

1989

File:

PDF, 868 KB

1989

17

Total Synthesis of (−)-Avenaciolide

Tsuboi, Sadao, Sakamoto, Jun-ichi, Sakai, Takashi, Utaka, Masanori

Journal:

Chemistry Letters

Year:

1989

File:

PDF, 172 KB

1989

18

A Systematic Study on the Bakers’ Yeast Reduction of 2-Oxoalkyl Benzoates and 1-Chloro-2-alkanones

Sakai, Takashi, Wada, Kou, Murakami, Takahiko, Kohra, Kiichiro, Imajo, Norihisa, Ooga, Yukihiro, Tsuboi, Sadao, Takeda, Akira, Utaka, Masanori

Journal:

Bulletin of the Chemical Society of Japan

Year:

1992

File:

PDF, 1.31 MB

1992

19

Dye-sensitized photo-oxygenation of 1,2-cyclohexanediones

Masanori Utaka, Manabu Nakatani, Akira Takeda

Journal:

Year:

1985

Language:

english

File:

PDF, 585 KB

english, 1985

20

NOVEL CARBON–CARBON BOND CLEAVAGE REACTIONS OF α-AZOHYDROPEROXIDES

Utaka, Masanori, Fujita, Yuji, Takeda, Akira

Journal:

Chemistry Letters

Year:

1982

Language:

english

File:

PDF, 5.29 MB

english, 1982

21

Asymmetric Reduction of 1-Acetoxy-2-alkanones with Bakers’ Yeast: Purification and Characterization of α -Acetoxy Ketone Reductase

Ishihara, Kohji, Nakajima, Nobuyoshi, Tsuboi, Sadao, Utaka, Masanori

Journal:

Bulletin of the Chemical Society of Japan

Year:

1994

File:

PDF, 898 KB

1994

22

Ortho Effect. VII. The Ortho Effects in the Ionizations of Substituted Benzoic Acids in Aqueous Dimethyl Sulfoxide

HOJO, Masaru, UTAKA, Masanori, YOSHIDA, Zenichi

Journal:

The Journal of the Society of Chemical Industry Japan

Year:

1966

File:

PDF, 812 KB

1966

23

A facile synthesis of (R)-(−)-hexahydromandelic acid with fermenting baker's yeast

Sadao Tsuboi, Emiko Nishiyama, Masanori Utaka, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 125 KB

english, 1986

24

A novel and practical synthetic method of 3(2H)-furanone derivatives

Takashi Sakai, Akitoshi Yamawaki, Hiroshi Ito, Masanori Utaka, Akira Takeda

Journal:

Journal of Heterocyclic Chemistry

Year:

1986

Language:

english

File:

PDF, 213 KB

english, 1986

25

Model for ``Charge-Relay'': Acceleration by Carboxylate Anion in Intramolecular General Base-Catalyzed Ester Hydrolysis by the Imidazolyl Group

Makoto Komiyama, Myron L. Bender, Masanori Utaka and Akira Takeda

Journal:

Proceedings of the National Academy of Sciences

Year:

1977

Language:

english

File:

PDF, 1.14 MB

english, 1977

26

High Enantioselectivity and Broad Substrate Specificity of a Carbonyl Reductase: Toward a Versatile Biocatalyst

Ema, Tadashi, Moriya, Hiroyuki, Kofukuda, Toru, Ishida, Tomomasa, Maehara, Kentaro, Utaka, Masanori, Sakai, Takashi

Journal:

Journal of Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 53 KB

english, 2001

27

Highly enantioselective reduction of 3-chloro-2-oxoalkanoates with fermenting bakers' yeast. A new synthesis of optically active 3-chloro-2-hydroxyalkanoates and glycidic esters

Tsuboi, Sadao, Furutani, Hiroyuki, Ansari, Mohammad Hafeez, Sakai, Takashi, Utaka, Masanori, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1993

Language:

english

File:

PDF, 973 KB

english, 1993

28

REGIO- AND DIASTEREOSELECTIVE ALDOL REACTION OF 1,2-CYCLOHEXANEDIONE DIANIONS WITH ALDEHYDES

Utaka, Masanori, Hojo, Makoto, Takeda, Akira

Journal:

Chemistry Letters

Year:

1985

Language:

english

File:

PDF, 5.07 MB

english, 1985

29

Lipase-catalyzed efficient kinetic resolution of 3-hydroxy-3-(pentafluorophenyl)propionitrile

Takashi Sakai, Tatsuo Takayama, Takafumi Ohkawa, Osamu Yoshio, Tadashi Ema, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1997

Language:

english

File:

PDF, 228 KB

english, 1997

30

A novel synthesis of tricyclo[5.1.0.03,5]octane-2,6-dione derivatives via double Michael addition-induced cyclopropanation reactions

Sadao Tsuboi, Takashige Ono, Katsushi Kunito, Mikio Kageyama, Takashi Sakai, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 235 KB

english, 1994

31

Transition-state models are useful for versatile biocatalysts: kinetics and thermodynamics of enantioselective acylations of secondary alcohols catalyzed by lipase and subtilisin

Tadashi Ema, Kunihiro Yamaguchi, Yuji Wakasa, Akinori Yabe, Ryoichi Okada, Minoru Fukumoto, Fumika Yano, Toshinobu Korenaga, Masanori Utaka, Takashi Sakai

Journal:

Journal of Molecular Catalysis B: Enzymatic

Year:

2003

Language:

english

File:

PDF, 168 KB

english, 2003

32

A Novel Reaction of Ethyl 2,3-Butadienoate with Aldehydes in the Presence of Base

Tsuboi, Sadao, Takatsuka, Satoshi, Utaka, Masanori

Journal:

Chemistry Letters

Year:

1988

Language:

english

File:

PDF, 2.50 MB

english, 1988

33

Asymmetric Reduction of α-(Dimethylthiocarbamoylthio) Carbonyl Compounds with Bakers’ Yeast

Tsuboi, Sadao, Kohara, Noriyuki, Doi, Katsumi, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1988

File:

PDF, 938 KB

1988

34

Origin of the Enantioselectivity of Lipases Explained by a Stereo-Sensing Mechanism Operative at the Transition State

Ema, Tadashi, Kobayashi, Juka, Maeno, Soichi, Sakai, Takashi, Utaka, Masanori

Journal:

Bulletin of the Chemical Society of Japan

Year:

1998

File:

PDF, 2.10 MB

1998

35

Ortho effects IV. Rates of alkaline hydrolysis of ethyl benzoates in aqueous dimethyl sulfoxides

Masaru Hojo, Masanori Utaka, Zen-ichi Yoshida

Journal:

Tetrahedron Letters

Year:

1966

Language:

english

File:

PDF, 235 KB

english, 1966

36

Photsensitized oxygenation of the enol forms of 1,2-cyclohexanediones

Masanori Utaka, Manabu Nakatani, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1983

Language:

english

File:

PDF, 224 KB

english, 1983

37

Stereoselective Synthesis of 3,5-Alkadienoic Esters from 2,4-Dienoic Isomers

Tsuboi, Sadao, Sakamoto, Jun-ichi, Kuroda, Akihisa, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1988

File:

PDF, 474 KB

1988

38

HIGHLY ENANTIOSELECTIVE REDUCTION OF δ-KETO ACIDS WITH FERMENTING BAKER’S YEAST. A FACILE SYNTHESIS OF OPTICALLY PURE ( R )-(+)-5-HEXADECANOLIDE

Utaka, Masanori, Watabu, Hisashi, Takeda, Akira

Journal:

Chemistry Letters

Year:

1985

Language:

english

File:

PDF, 3.30 MB

english, 1985

39

Lipase-catalyzed kinetic resolution of large secondary alcohols having tetraphenylporphyrin

Tadashi Ema, Masahito Jittani, Takashi Sakai, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 236 KB

english, 1998

40

Asymmetric reduction of chlorinated 4-oxopentanoates with Bakers' yeast. Synthesis of optically active .gamma.-butyrolactones and useful chiral building blocks

Tsuboi, Sadao, Sakamoto, Junichi, Kawano, Takayuki, Utaka, Masanori, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 462 KB

english, 1991

41

Effects of Additives in the Reduction Using Bakers’ Yeast Cell-Free Extract

Ishihara, Kohji, Higashi, Yuji, Tsuboi, Sadao, Utaka, Masanori

Journal:

Chemistry Letters

Year:

1995

File:

PDF, 218 KB

1995

42

ChemInform Abstract: Lipase-Catalyzed Transesterification of 2-Hydroxy-2-(pentafluorophenyl)acetonitrile Leading to (1R,2R)- and (1S,2S)-Bis(pentafluorophenyl)ethane-1,2-diol.

Takashi Sakai, Yasushi Miki, Masashi Tsuboi, Hiroaki Takeuchi, Tadashi Ema, Kenji Uneyama, Masanori Utaka

Journal:

Year:

2000

Language:

english

File:

PDF, 32 KB

english, 2000

43

A Practical Synthesis of Chiral 3-Chloro-2-hydroxyalkanoates and 2,3-Epoxyalcohols

Sadao Tsuboi, Hiroyuki Furutani, Masanori Utaka, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 215 KB

english, 1987

44

Asymmetric reduction of aliphatic short- to long-chain .beta.-keto acids by use of fermenting bakers' yeast

Utaka, Masanori, Watabu, Hisashi, Higashi, Hiroshi, Sakai, Takashi, Tsuboi, Sadao, Torii, Sigeru

Journal:

Journal of Organic Chemistry

Year:

1990

Language:

english

File:

PDF, 721 KB

english, 1990

45

Regio- and enantioselective reduction of .alpha.,2-dioxocycloalkaneacetates with fermenting baker's yeast. A new synthesis of (R)-(-)-hexahydromandelic acid

Tsuboi, Sadao, Nishiyama, Emiko, Furutani, Hiroyuki, Utaka, Masanori, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 573 KB

english, 1987

46

Highly Efficient and Convenient Regeneration of NADPH for Asymmetric Reduction Using Bakers’ Yeast Cell Free Extract

Utaka, Masanori, Yano, Tomoko, Ema, Tadashi, Sakai, Takashi

Journal:

Chemistry Letters

Year:

1996

File:

PDF, 304 KB

1996

47

Asymmetric reduction of the prochiral carbon-carbon double bond of methyl 2-chloro-2-alkenoates by use of fermenting bakers' yeast

Utaka, Masanori, Konishi, Satoshi, Mizuoka, Ami, Ohkubo, Toshiyasu, Sakai, Takashi, Tsuboi, Sadao, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1989

Language:

english

File:

PDF, 594 KB

english, 1989

48

Asymmetric Reduction of α-Methylene Ketones by Using Fermenting Baker’s Yeast. Preparation of Optically Active β-Hydroxy α-Methyl Ketones

Utaka, Masanori, Onoue, Shinji, Takeda, Akira

Journal:

Chemistry Letters

Year:

1987

Language:

english

File:

PDF, 3.76 MB

english, 1987

49

An efficient synthesis of bislactone skeleton leading to d,l-canadensolide

Takashi Sakai, Masanori Yoshida, Shoichi Kohmoto, Masanori Utaka, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 249 KB

english, 1982

50

Transition-state model for subtilisin-catalyzed transesterifications of secondary alcohols

Tadashi Ema, Ryoichi Okada, Minoru Fukumoto, Masahito Jittani, Mikiko Ishida, Kenji Furuie, Kunihiro Yamaguchi, Takashi Sakai, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1999

Language:

english

File:

PDF, 252 KB

english, 1999

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