Tadashi Ema: search on Z-Library

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1

Highly Efficient Chemoenzymatic Synthesis of Methyl (R)-o-Chloromandelate, a Key Intermediate for Clopidogrel, via Asymmetric Reduction with Recombinant Escherichia coli

Tadashi Ema, Sayaka Ide, Nobuyasu Okita, Takashi Sakai

Journal:

Advanced Synthesis & Catalysis

Year:

2008

Language:

english

File:

PDF, 217 KB

english, 2008

2

Highly active lipase immobilized on biogenous iron oxide via an organic bridging group: the dramatic effect of the immobilization support on enzymatic function

Ema, Tadashi, Miyazaki, Yuki, Kozuki, Izumi, Sakai, Takashi, Hashimoto, Hideki, Takada, Jun

Journal:

Green Chemistry

Year:

2011

Language:

english

File:

PDF, 1.38 MB

english, 2011

3

Synthetically useful variants of industrial lipases from Burkholderia cepacia and Pseudomonas fluorescens

Yoshida, Kazunori, Ono, Masakazu, Yamamoto, Takahiro, Utsumi, Takashi, Koikeda, Satoshi, Ema, Tadashi

Journal:

Organic & Biomolecular Chemistry

Year:

2017

Language:

english

File:

PDF, 1.27 MB

english, 2017

4

RADIOLYTIC DEGRADATION OF A CROWN ETHER FOR EXTRACT ABILITY OF STRONTIUM

Takagi, Noriaki, Izumi, Yoshinobu, Ema, Kimiko, Yamamoto, Tadashi, Nishizawa, Kazushige

Journal:

Solvent Extraction and Ion Exchange

Year:

1999

Language:

english

File:

PDF, 230 KB

english, 1999

5

AggregationâInduced Circularly Polarized Luminescence from Boron Complexes with a Carbazoyl Schiff Base

Maeda, Chihiro, Nomoto, Shuichi, Takaishi, Kazuto, Ema, Tadashi

Journal:

Chemistry (Weinheim an der Bergstrasse, Germany)

Year:

2020

File:

PDF, 20.36 MB

2020

6

Low-friction fluid flow surface design using topology optimization

Katsuno, Eduardo Tadashi, Dantas, JoÃ£o Lucas Dozzi, Silva, EmÃlio Carlos Nelli

Journal:

Structural and Multidisciplinary Optimization

Year:

2020

File:

PDF, 4.21 MB

2020

7

Robust porphyrin catalysts immobilized on biogenous iron oxide for the repetitive conversions of epoxides and CO2 into cyclic carbonates

Ema, Tadashi, Miyazaki, Yuki, Taniguchi, Tomoya, Takada, Jun

Journal:

Green Chemistry

Year:

2013

Language:

english

File:

PDF, 4.16 MB

english, 2013

8

Asymmetric reduction of a variety of ketones with a recombinant carbonyl reductase: identification of the gene encoding a versatile biocatalyst

Tadashi Ema, Hideo Yagasaki, Nobuyasu Okita, Kumiko Nishikawa, Toshinobu Korenaga, Takashi Sakai

Journal:

Tetrahedron: Asymmetry

Year:

2005

Language:

english

File:

PDF, 112 KB

english, 2005

9

Evaluation for genotoxic potential of multi-walled carbon nanotubes

Makoto Ema, Masato Naya, Norihiro Kobayashi, Kazumasa Honda, Tadashi Imamura, Hiroshi Suzuki, Junko Nakanishi

Journal:

Toxicology Letters

Year:

2012

Language:

english

File:

PDF, 86 KB

english, 2012

10

Highly Sensitive Chiral Shift Reagent Bearing Two Zinc Porphyrins

Ema, Tadashi, Ouchi, Nozomi, Doi, Tokuhiro, Korenaga, Toshinobu, Sakai, Takashi

Journal:

Organic Letters

Year:

2005

Language:

english

File:

PDF, 147 KB

english, 2005

11

Theoretical Study on Highly Active Bifunctional Metalloporphyrin Catalysts for the Coupling Reaction of Epoxides with Carbon Dioxide

Hasegawa, Jun-ya, Miyazaki, Ray, Maeda, Chihiro, Ema, Tadashi

Journal:

The Chemical Record

Year:

2016

Language:

english

File:

PDF, 758 KB

english, 2016

12

Axially Chiral peri -Xanthenoxanthenes as a Circularly Polarized Luminophore

Takaishi, Kazuto, Hinoide, Sakiko, Matsumoto, Tomoki, Ema, Tadashi

Journal:

Journal of the American Chemical Society

Year:

2019

File:

PDF, 1.36 MB

2019

13

Synthesis of Enantiomerically Pure (R,R)- and (S,S)-1,2-Bis(pentafluorophenyl)ethane-1,2-diamine and Evaluation of the pKa Value by ab initio Calculations.

Takashi Sakai, Toshinobu Korenaga, Noriyuki Washio, Yuji Nishio, Shinichi Minami, Tadashi Ema

Journal:

Year:

2004

File:

PDF, 95 KB

2004

14

Empirical method for predicting enantioselectivity in catalytic reactions: demonstration with lipase and oxazaborolidine

Tadashi Ema, Norichika Ura, Masataka Yoshii, Toshinobu Korenaga, Takashi Sakai

Journal:

Year:

2009

Language:

english

File:

PDF, 604 KB

english, 2009

15

Synthesis and Photoreaction of 1,2,3,4-Tetra-t-butylnaphthalene: A Highly Crowded Naphthalene Derivative and Its Valenceisomers

Sadao Miki, Tadashi Ema, Rie Shimizu, Hiroshi Nakatsuji, Zen-ichi Yoshida

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 148 KB

english, 1992

16

Bifunctional Porphyrin Catalysts for the Synthesis of Cyclic Carbonates from Epoxides and CO 2 : Structural Optimization and Mechanistic Study

Ema, Tadashi, Miyazaki, Yuki, Shimonishi, Junta, Maeda, Chihiro, Hasegawa, Jun-ya

Journal:

Journal of the American Chemical Society

Year:

2014

Language:

english

File:

PDF, 2.51 MB

english, 2014

17

Bifunctional Catalysts Based on m -Phenylene-Bridged Porphyrin Dimer and Trimer Platforms: Synthesis of Cyclic Carbonates from Carbon Dioxide and Epoxides

Maeda, Chihiro, Taniguchi, Tomoya, Ogawa, Kanae, Ema, Tadashi

Journal:

Angewandte Chemie International Edition

Year:

2015

Language:

english

File:

PDF, 659 KB

english, 2015

18

SPIE Proceedings [SPIE Electronic Imaging - San Jose, CA (Saturday 22 January 2000)] Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications - Newly improved very high sensitivity electron bombardment CCD sensor and camera

Maruno, Tadashi, Shirai, Mashahiko, Suyama, Motohiro, Ema, Shogo, Blouke, Morley M., Sampat, Nitin, Williams, Jr., George M., Yeh, Thomas

Year:

2000

Language:

english

File:

PDF, 437 KB

english, 2000

19

Macrocyclic multinuclear metal complexes acting as catalysts for organic synthesis

Nath, Bikash Dev, Takaishi, Kazuto, Ema, Tadashi

Journal:

Catalysis Science & Technology

Year:

2020

Language:

english

File:

PDF, 12.55 MB

english, 2020

20

5, 10, 15, 20-Tetra-tert-butylporphyrin und seine bemerkenswerte Reaktivität in 5, 15-Stellung

Tadashi Ema, Dr. Mathias O. Senge, Nora Y. Nelson, Prof. Dr. Hisanobu Ogoshi, Prof. Dr. Kevin M. Smith

Journal:

Angewandte Chemie

Year:

1994

Language:

german

File:

PDF, 331 KB

german, 1994

21

Versatile and Practical Chiral Shift Reagent with Hydrogen-Bond Donor/Acceptor Sites in a Macrocyclic Cavity

Ema, Tadashi, Tanida, Daisuke, Sakai, Takashi

Journal:

Organic Letters

Year:

2006

Language:

english

File:

PDF, 83 KB

english, 2006

22

Quaternary ammonium hydroxide as a metal-free and halogen-free catalyst for the synthesis of cyclic carbonates from epoxides and carbon dioxide

Ema, Tadashi, Fukuhara, Kazuki, Sakai, Takashi, Ohbo, Masaki, Bai, Fu-Quan, Hasegawa, Jun-ya

Journal:

Catalysis Science & Technology

Year:

2015

Language:

english

File:

PDF, 3.28 MB

english, 2015

23

Magnetic Attachment of Lipase Immobilized on Bacteriogenic Iron Oxide Inside a Microtube Reactor for the Kinetic Resolution of Secondary Alcohols

Mandai, Kyoko, Fukuda, Takehiro, Miyazaki, Yuki, Hashimoto, Hideki, Mandai, Hiroki, Ema, Tadashi, Takada, Jun, Suga, Seiji

Journal:

Year:

2017

Language:

english

File:

PDF, 1.98 MB

english, 2017

24

Synthesis and Chiroptical Properties of Chiral Carbazole‐Based BODIPYs

Maeda, Chihiro, Suka, Keita, Nagahata, Keiji, Takaishi, Kazuto, Ema, Tadashi

Journal:

Chemistry - A European Journal

Year:

2019

File:

PDF, 3.67 MB

2019

25

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

26

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

27

Mechanism of Induced Circular Dichroism of Amino Acid Ester-Porphyrin Supramolecular Systems. Implications to the Origin of the Circular Dichroism of Hemoprotein

Mizutani, Tadashi, Ema, Tadashi, Yoshida, Takashi, Renne, Thomas, Ogoshi, Hisanobu

Journal:

Inorganic Chemistry

Year:

1994

Language:

english

File:

PDF, 1.03 MB

english, 1994

28

Recent progress in catalytic conversions of carbon dioxide

Maeda, Chihiro, Miyazaki, Yuki, Ema, Tadashi

Journal:

Catalysis Science & Technology

Year:

2014

Language:

english

File:

PDF, 7.43 MB

english, 2014

29

ChemInform Abstract: Highly Active and Robust Metalloporphyrin Catalysts for the Synthesis of Cyclic Carbonates from a Broad Range of Epoxides and Carbon Dioxide.

Maeda, Chihiro, Shimonishi, Junta, Miyazaki, Ray, Hasegawa, Jun-ya, Ema, Tadashi

Journal:

Year:

2016

File:

PDF, 29 KB

2016

30

Axially Chiral peri -Xanthenoxanthenes as a Circularly Polarized Luminophore

Takaishi, Kazuto, Hinoide, Sakiko, Matsumoto, Tomoki, Ema, Tadashi

Journal:

Journal of the American Chemical Society

Year:

2019

Language:

english

File:

PDF, 1.36 MB

english, 2019

31

ChemInform Abstract: Chiral Porphyrin Dimer with a Macrocyclic Cavity for Intercalation of Aromatic Guests.

Tadashi Ema, Norichika Ura, Katsuya Eguchi, Yuhei Ise, Takashi Sakai

Journal:

Year:

2011

File:

PDF, 22 KB

2011

32

Lipase-Catalyzed Resolution of (2 R ,3 S )- and (2 R ,3 R )-3-Methyl-3-phenyl-2-aziridinemethanol at Low Temperatures and Determination of the Absolute Configurations of the Four Stereoisomers

Sakai, Takashi, Liu, Yu, Ohta, Hiroshi, Korenaga, Toshinobu, Ema, Tadashi

Journal:

Journal of Organic Chemistry

Year:

2005

Language:

english

File:

PDF, 170 KB

english, 2005

33

Synthesis of a Molecular Tweezer Containing Pentafluorophenyl Groups and Investigation of the π–π Stacking Interaction for a Pentafluorophenyl Group in a Polar Organic Solvent

Korenaga, Toshinobu, Kawauchi, Yusuke, Kosaki, Takahiro, Ema, Tadashi, Sakai, Takashi

Journal:

Bulletin of the Chemical Society of Japan

Year:

2005

Language:

english

File:

PDF, 183 KB

english, 2005

34

ChemInform Abstract: Bifunctional Catalysts Based on m-Phenylene-Bridged Porphyrin Dimer and Trimer Platforms: Synthesis of Cyclic Carbonates from Carbon Dioxide and Epoxides.

Maeda, Chihiro, Taniguchi, Tomoya, Ogawa, Kanae, Ema, Tadashi

Journal:

Year:

2015

File:

PDF, 18 KB

2015

35

Rational Strategies for Highly Enantioselective Lipase-Catalyzed Kinetic Resolutions of Very Bulky Chiral Compounds: Substrate Design and High-Temperature Biocatalysis

Journal:

Year:

2005

File:

PDF, 8 KB

2005

36

Highly enantioselective and efficient synthesis of methyl (R)-o-chloromandelate with recombinant E. coli: toward practical and green access to clopidogrel

Ema, Tadashi, Okita, Nobuyasu, Ide, Sayaka, Sakai, Takashi

Journal:

Organic & Biomolecular Chemistry

Year:

2007

Language:

english

File:

PDF, 91 KB

english, 2007

37

Bifunctional Organocatalyst for Activation of Carbon Dioxide and Epoxide To Produce Cyclic Carbonate: Betaine as a New Catalytic Motif

Tsutsumi, Yoshihiro, Yamakawa, Kyohei, Yoshida, Masahiko, Ema, Tadashi, Sakai, Takashi

Journal:

Organic Letters

Year:

2010

Language:

english

File:

PDF, 311 KB

english, 2010

38

ChemInform Abstract: Recent Progress in Catalytic Conversions of Carbon Dioxide

Maeda, Chihiro, Miyazaki, Yuki, Ema, Tadashi

Journal:

Year:

2014

File:

PDF, 17 KB

2014

39

Enhancement of the Efficiency of the Low Temperature Method for Kinetic Resolution of Primary Alcohols by Optimizing the Organic Bridges in Porous Ceramic-Immobilized Lipase

Sakai, Takashi, Hayashi, Kyoko, Yano, Fumika, Takami, Mie, Ino, Megumi, Korenaga, Toshinobu, Ema, Tadashi

Journal:

Bulletin of the Chemical Society of Japan

Year:

2003

Language:

english

File:

PDF, 151 KB

english, 2003

40

Practical Resolution of 3-Phenyl-2 H -azirine-2-methanol at Very Low Temperature by Using Lipase Immobilized on Porous Ceramic and Optimized Acylating Agent

Sakai, Takashi, Matsuda, Akiko, Korenaga, Toshinobu, Ema, Tadashi

Journal:

Bulletin of the Chemical Society of Japan

Year:

2003

Language:

english

File:

PDF, 69 KB

english, 2003

41

Azahelicene-Fused BODIPY Analogs Showing Circularly Polarized Luminescence

Maeda, Chihiro, Nagahata, Keiji, Shirakawa, Takuma, Ema, Tadashi

Journal:

Angewandte Chemie International Edition

Year:

2020

Language:

english

File:

PDF, 11.47 MB

english, 2020

42

Mechanism-based enzymatic method for reliable determination of absolute configuration of chiral 1-substituted ethanols: combination with NMR method

Tadashi Ema, Masataka Yoshii, Toshinobu Korenaga, Takashi Sakai

Journal:

Tetrahedron: Asymmetry

Year:

2002

Language:

english

File:

PDF, 136 KB

english, 2002

43

Crystal structure of a remarkably ruffled nonplanar porphyrin (pyridine)[5,10,15,20-tetra(tert-butyl)porphyrinato]zinc(II)

Senge, Mathias O., Ema, Tadashi, Smith, Kevin M.

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1995

Language:

english

File:

PDF, 349 KB

english, 1995

44

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

45

Synthesis of silyl formates, formamides, and aldehydes via solvent-free organocatalytic hydrosilylation of CO 2

Murata, Takumi, Hiyoshi, Mahoko, Ratanasak, Manussada, Hasegawa, Jun-ya, Ema, Tadashi

Journal:

Chemical Communications

Year:

2020

File:

PDF, 1.68 MB

2020

46

Synthesis and electronic properties of carbazole-based core-modified diporphyrins showing near infrared absorption

Maeda, Chihiro, Shirakawa, Takuma, Ema, Tadashi

Journal:

Chemical Communications

Year:

2020

File:

PDF, 2.96 MB

2020

47

Enhancement of the Efficiency of the Low Temperature Method for Kinetic Resolution of Primary Alcohols by Optimizing the Organic Bridges in Porous Ceramic-Immobilized Lipase.

Takashi Sakai, Kyoko Hayashi, Fumika Yano, Mie Takami, Megumi Ino, Toshinobu Korenaga, Tadashi Ema

Journal:

Year:

2003

File:

PDF, 102 KB

2003

48

ChemInform Abstract: Stereoselective Synthesis of Bicyclic Tertiary Alcohols with Quaternary Stereocenters via Intramolecular Crossed Benzoin Reactions Catalyzed by N-Heterocyclic Carbenes.

Tadashi Ema, Yoshitaka Oue, Kumiko Akihara, Yuki Miyazaki, Takashi Sakai

Journal:

Year:

2010

File:

PDF, 46 KB

2010

49

Rational strategies for highly enantioselective lipase-catalyzed kinetic resolutions of very bulky chiral compounds: substrate design and high-temperature biocatalysis

Journal:

Tetrahedron: Asymmetry

Year:

2004

Language:

english

File:

PDF, 507 KB

english, 2004

50

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

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