Masanori Utaka: search on Z-Library

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51

Asymmetric reduction of aliphatic .delta.-keto acids with sodium borohydride in the presence of bovine serum albumin

Utaka, Masanori, Watabu, Hisashi, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1986

Language:

english

File:

PDF, 447 KB

english, 1986

52

Highly Enantioselective Reduction of Carbonyl Compounds Using a Reductase Purified from Bakers' Yeast

Ema, Tadashi, Sugiyama, Yasushi, Fukumoto, Minoru, Moriya, Hiroyuki, Cui, Jing-Nan, Sakai, Takashi, Utaka, Masanori

Journal:

Journal of Organic Chemistry

Year:

1998

Language:

english

File:

PDF, 98 KB

english, 1998

53

Lipase-catalyzed kinetic resolution of 3-chloro-2-hydroxyalkanoates. Its application for the synthesis of (−)-disparlure

Sadao Tsuboi, Nobuyuki Yamafuji, Masanori Utaka

Journal:

Tetrahedron: Asymmetry

Year:

1997

Language:

english

File:

PDF, 289 KB

english, 1997

54

Highly Enantioselective Synthesis of Both Enantiomers of γ-Substituted Butenolides by Bakers' Yeast Reduction and Lipase-Catalyzed Hydrolysis. Total Synthesis of (3A S ,6a S )-Ethisolide, Whisky Lactone, and (−)-Avenaciolide

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

Journal:

Journal of Organic Chemistry

Year:

1998

Language:

english

File:

PDF, 96 KB

english, 1998

55

5-[4-(1-Hydroxyethyl)phenyl]-10,15,20-triphenylporphyrin as a Probe of the Transition-State Conformation in Hydrolase-Catalyzed Enantioselective Transesterifications

Ema, Tadashi, Jittani, Masahito, Furuie, Kenji, Utaka, Masanori, Sakai, Takashi

Journal:

Journal of Organic Chemistry

Year:

2002

Language:

english

File:

PDF, 231 KB

english, 2002

56

CUPRIC ION-CATALYZED DIOXYGENATION OF 1,2-CYCLOHEXANEDIONES. A NONENZYMATIC ANALOG FOR QUERCETINASE DIOXYGENATION

Utaka, Masanori, Hojo, Makoto, Fujii, Yasuyuki, Takeda, Akira

Journal:

Chemistry Letters

Year:

1984

Language:

english

File:

PDF, 7.19 MB

english, 1984

57

A Convenient Reduction Method of β-Phenyl α,β-Unsaturated Carbonyl Compounds with Me 3 SiCl–NaI–ROH Reagent

Sakai, Takashi, Miyata, Kazuyoshi, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1987

File:

PDF, 627 KB

1987

58

Effects of freezing an internal rotation on intramolecular catalysis by an imidazolyl group. Synthesis and hydrolysis of 4,5-[1'(4')-acetoxymethyltetramethylene]imidazoles and 4,5-[1'(5')-acetoxymethylpentamethylene]imidazole

Utaka, Masanori, Koyama, Junichi, Takeda, Akira

Journal:

Journal of the American Chemical Society

Year:

1976

Language:

english

File:

PDF, 965 KB

english, 1976

59

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

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

Journal:

Journal of Organic Chemistry

Year:

2000

Language:

english

File:

PDF, 114 KB

english, 2000

60

Highly Enantioselective Reduction of Ethyl 2-Acyloxy-3-oxobutanoate with Immobilized Baker’s Yeast

Sakai, Takashi, Nakamura, Toshiki, Fukuda, Katsuyoshi, Amano, Eiichiro, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1986

File:

PDF, 671 KB

1986

61

Novel Type of the Favorskii Rearrangement Combined with Aldol Reaction Leading to γ-Butyrolactone Derivatives

Sakai, Takashi, Yamawaki, Akitoshi, Katayama, Tsuyoshi, Okada, Hiroshi, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1987

File:

PDF, 524 KB

1987

62

Facile preparation of 2,6-dimethyl-2,6-tetrahydropyrancarbolactone, a versatile intermediate for the syntheses of (±)-frontalin, (±)-cinenic acid, and (±)-linaloyl oxide

Masanori Utaka, Horishi Makino, Yukito Oota, Sadao Tsuboi, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1983

Language:

english

File:

PDF, 220 KB

english, 1983

63

REGIOSELECTIVE MONOALKYLATION OF 3-METHYL-1,2-CYCLOHEXANEDIONE

Utaka, Masanori, Hojo, Makoto, Takeda, Akira

Journal:

Chemistry Letters

Year:

1984

Language:

english

File:

PDF, 5.56 MB

english, 1984

64

One-Pot C -Arylmethylation of Active Methylene Compounds with Aromatic Aldehydes Induced by a Me 3 SiCl–NaI–MeCN Reagent

Sakai, Takashi, Miyata, Kazuyoshi, Tsuboi, Sadao, Utaka, Masanori

Journal:

Bulletin of the Chemical Society of Japan

Year:

1989

File:

PDF, 473 KB

1989

65

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

66

Synthesis of 5-[( E )-1-Alkenyl]-3(2 H )-furanones by the Stereoselective Dehydration with Me 3 SiCl

Sakai, Takashi, Kohda, Kazuhiko, Tsuboi, Sadao, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1987

File:

PDF, 702 KB

1987

67

Lipase-Catalyzed Resolution of 2-Substituted 3-Cyclopenten-1-ol Derivatives

Sakai, Takashi, Iida, Yasuhiro, Kikuyama, Shigeki, Tsuboi, Sadao, Utaka, Masanori

Journal:

Chemistry Letters

Year:

1991

File:

PDF, 246 KB

1991

68

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

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

Journal:

Year:

2002

File:

PDF, 30 KB

2002

69

Significant effect of acyl groups on enantioselectivity in lipase-catalyzed transesterifications

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

Journal:

Tetrahedron: Asymmetry

Year:

1996

Language:

english

File:

PDF, 243 KB

english, 1996

70

Asymmetric reduction of Z-3-chloro-3-alken-2-ones with fermenting baker's yeast

Masanori Utaka, Satoshi Konishi, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 254 KB

english, 1986

71

A new aldol condensation of .alpha.-allenic esters with aldehydes, including a one-pot synthesis of enyne compounds

Tsuboi, Sadao, Kuroda, Hirofumi, Takatsuka, Satoshi, Fukawa, Takashi, Sakai, Takashi, Utaka, Masanori

Journal:

Journal of Organic Chemistry

Year:

1993

Language:

english

File:

PDF, 754 KB

english, 1993

72

Synthesis and 13 C NMR Spectra of endo -5-(4-Imidazolyl)bicyclo[2.2.2]oct- endo - and exo -2-yl trans -Cinnamates

Utaka, Masanori, Akiyama, Mamoru, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1977

File:

PDF, 829 KB

1977

73

ChemInform Abstract: 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:

Year:

1999

File:

PDF, 25 KB

1999

74

Highly Regio- and Enantioselective Reduction of 1-Chloro-2,4-alkanediones Using Baker's Yeast: Effects of Organic Solvents as Additives

Jing-Nan Cui, Ryoji Teraoka, Tadashi Ema, Takashi Sakai, Masanori Utaka*

Journal:

Tetrahedron Letters

Year:

1997

Language:

english

File:

PDF, 530 KB

english, 1997

75

New synthesis of .alpha.-benzoyloxy aldehydes. Application to the stereoselective synthesis of conjugated (E,E)-dienoic esters

Sakai, Takashi, Seko, Katsuhiko, Tsuji, Akihiro, Utaka, Masanori, Takeda, Akira

Journal:

Journal of Organic Chemistry

Year:

1982

Language:

english

File:

PDF, 820 KB

english, 1982

76

Asymmetric reduction of 3-oxo-octadecanoic acid with fermenting baker's yeast. An easy synthesis of optically pure (+)-(2R,3R)-corynomycolic acid

Utaka, Masanori, Higashi, Hiroshi, Takeda, Akira

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1987

Language:

english

File:

PDF, 171 KB

english, 1987

77

A Convenient Synthesis of Hypotensive (±)-Oudenone

Sakai, Takashi, Iwata, Kohji, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1987

File:

PDF, 393 KB

1987

78

t -BuCl–Nal as a Reagent for the Selective Reduction of Olefinic Double Bond of β-Phenyl α,β-Unsaturated Carbonyl Compounds

Sakai, Takashi, Miyata, Kazuyoshi, Hondo, Kazuomi, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1987

File:

PDF, 203 KB

1987

79

New Optically Active Diporphyrin Having a Chiral Cyclophane as a Spacer

Ema, Tadashi, Misawa, Shigeharu, Nemugaki, Shuichi, Sakai, Takashi, Utaka, Masanori

Journal:

Chemistry Letters

Year:

1997

File:

PDF, 342 KB

1997

80

Micellar catalysis in the base-catalyzed autoxidation of diosphenol

Masanori Utaka, Seishiro Matsushita, Haruhiro Yamasaki, Akira Takeda

Journal:

Tetrahedron Letters

Year:

1980

Language:

english

File:

PDF, 141 KB

english, 1980

81

Control of enantioselectivity in the baker's yeast asymmetric reduction of γ-chloro β-diketones to γ-chloro (S)-β-hydroxy ketones

Jing-Nan Cui, Tadashi Ema, Takashi Sakai, Masanori Utaka

Journal:

Tetrahedron: Asymmetry

Year:

1998

Language:

english

File:

PDF, 251 KB

english, 1998

82

Enzymatic production of (S)-1-acetoxy-2-alkanol with bakers' yeast cell-free extract in a membrane reactor

Kohji Ishihara, Yuji Higashi, Nobuyoshi Nakajima, Masanori Utaka, Kaoru Nakamura

Journal:

Journal of Fermentation and Bioengineering

Year:

1996

Language:

english

File:

PDF, 342 KB

english, 1996

83

Enhancement of the Enantioselectivity in Lipase-Catalyzed Kinetic Resolutions of 3-Phenyl-2 H -azirine-2-methanol by Lowering the Temperature to −40 °C

Sakai, Takashi, Kawabata, Isamu, Kishimoto, Tetsuo, Ema, Tadashi, Utaka, Masanori

Journal:

Journal of Organic Chemistry

Year:

1997

Language:

english

File:

PDF, 125 KB

english, 1997

84

Highly Enantioselective Synthesis of Optically Active γ-Substituted 2-Buten-4-olides by Bakers' Yeast Reduction

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

Journal:

Year:

1991

File:

PDF, 96 KB

1991

85

Favorskii-Type Rearrangement of α,α′-Dihalo Ketones Induced by Enolates of (Diethoxyphosphinyl)acetic Esters and Its Application to the Synthesis of α,α′-Divinyl Ketones

Sakai, Takashi, Amano, Eiichiro, Miyata, Kazuyoshi, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1987

File:

PDF, 423 KB

1987

86

Favorskii-Type Rearrangement of α,α′-Dihalo Ketones with Sodiomalonates Leading to Conjugated Enone Derivatives

Sakai, Takashi, Ishikawa, Mutsumi, Amano, Eiichiro, Utaka, Masanori, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1987

File:

PDF, 431 KB

1987

87

Synthesis and Hydrolysis of 4-Acetoxymethylbenzimidazoles, Effects of Freezing an Internal Rotation on Intramolecular Catalysis by a Benzimidazolyl Group

Utaka, Masanori, Takatsu, Masahisa, Takeda, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1977

File:

PDF, 986 KB

1977

88

Preparation of Optically Active (4aα,8aβ)-Octahydro-4a-methyl-8-methylene-2(1H)-naphthalenone, a Key Intermediate for the Enantioselective Synthesis of Eudesmane Sesquiterpenes

Utaka, Masanori, Fujii, Yasuyuki, Takeda, Akira

Journal:

Chemistry Letters

Year:

1986

Language:

english

File:

PDF, 3.43 MB

english, 1986

89

A Convenient Synthesis of Platelet-Activating Factors and Their Analogues from Chiral Epichlorohydrin

Tsuboi, Sadao, Takeda, Shinji, Yamasaki, Yasuhisa, Sakai, Takashi, Utaka, Masanori, Ishida, Shiro, Yamada, Eiichi, Hirano, Jiro

Journal:

Chemistry Letters

Year:

1992

File:

PDF, 373 KB

1992

90

MICHAEL REACTION OF 1,2-CYCLOHEXANEDIONES AND 1,2-CYCLOPENTANEDIONES WITH METHYL VINYL KETONE

Utaka, Masanori, Fujii, Yasuyuki, Takeda, Akira

Journal:

Chemistry Letters

Year:

1985

Language:

english

File:

PDF, 5.78 MB

english, 1985

91

Compensation Effect between Differential Activation Enthalpy and Entropy in Subtilisin-Catalyzed Kinetic Resolutions of Secondary Alcohols

Ema, Tadashi, Yamaguchi, Kunihiro, Wakasa, Yuji, Tanaka, Nobuaki, Utaka, Masanori, Sakai, Takashi

Journal:

Chemistry Letters

Year:

2000

Language:

english

File:

PDF, 299 KB

english, 2000

92

Synthesis and CD spectrum of chiral porphyrin dimer

Tadashi Ema, Shuichi Nemugaki, Sadao Tsuboi, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 198 KB

english, 1995

93

Highly efficient enzymatic asymmetric reduction by use of regenerating NADPH in bakers' yeast cell-free extract

Kohji Ishihara, Takashi Sakai, Sadao Tsuboi, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 174 KB

english, 1994

94

Lipase-catalyzed kinetic resolution of 2-acyloxy-2-(pentafluorophenyl)acetonitrile

Takashi Sakai, Yasushi Miki, Mayumi Nakatani, Tadashi Ema, Kenji Uneyama, Masanori Utaka

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 240 KB

english, 1998

95

New synthesis of jasmine lactone and related .delta.-lactones from 1,2-cyclohexanedione. Preparation and dye-sensitized photooxygenation of 3-(2-alkenyl)- and 3-(2-alkynyl)-1,2-cyclohexanediones

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

Journal:

Journal of Organic Chemistry

Year:

1986

Language:

english

File:

PDF, 606 KB

english, 1986

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