Okuma, Kentaro: search on Z-Library

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1

Photoadhesive of Acrylates Containing Cross-links of Dipyridyl Disulfide

Furutani, Masahiro, Nakayama, Kentaro, Okuma, Kazuki, Arimitsu, Koji

Journal:

Journal of Photopolymer Science and Technology

Year:

2019

Language:

english

File:

PDF, 514 KB

english, 2019

2

Reaction of Benzyne with Salicylaldehydes: General Synthesis of Xanthenes, Xanthones, and Xanthols

Okuma, Kentaro, Nojima, Akiko, Matsunaga, Nahoko, Shioji, Kosei

Journal:

Organic Letters

Year:

2009

Language:

english

File:

PDF, 117 KB

english, 2009

3

Tandem Reaction of Arynes with Tertiary Amines and Aldehydes: Formation of 9- and 10-Membered Dibenzo[1,5]oxaza Heterocycles

Okuma, Kentaro, Kinoshita, Hiroaki, Nagahora, Noriyoshi, Shioji, Kosei

Journal:

European Journal of Organic Chemistry

Year:

2016

Language:

english

File:

PDF, 896 KB

english, 2016

4

Evolutionary design framework for Smart PSS: Service engineering approach

Watanabe, Kentaro, Okuma, Takashi, Takenaka, Takeshi

Journal:

Advanced Engineering Informatics

Year:

2020

File:

PDF, 4.31 MB

2020

5

ChemInform Abstract: Tandem Reaction of Arynes with Tertiary Amines and Aldehydes: Formation of 9- and 10-Membered Dibenzo[1,5]oxaza Heterocycles.

Okuma, Kentaro, Kinoshita, Hiroaki, Nagahora, Noriyoshi, Shioji, Kosei

Journal:

Year:

2016

File:

PDF, 28 KB

2016

6

Preventive effect of cyproheptadine hydrochloride in refractory patients with frequent migraine

Okuma, Hirohisa, Iijima, Kazuyuki, Yasuda, Takashi, Tokuoka, Kentaro, Kitagawa, Yasuhisa

Journal:

Year:

2013

Language:

english

File:

PDF, 123 KB

english, 2013

7

Synthesis of 3,1-Benzothiazines from 2-Alkenyl- and 2-Alkynylanilides and Lawesson Reagent

Okuma, Kentaro, Ozaki, Saori, Nagahora, Noriyoshi, Shioji, Kosei

Journal:

Year:

2011

Language:

english

File:

PDF, 711 KB

english, 2011

8

NOVEL REACTIONS OF AMINOOXOSULFONIUM YLIDE WITH EPOXIDES

Okuma, Kentaro, Nishimura, Kenshin, Ohta, Hiroshi

Journal:

Chemistry Letters

Year:

1984

Language:

english

File:

PDF, 5.37 MB

english, 1984

9

Pseudoathetosis caused by migrated cervical disc

Takeo Arai, Kenji Fujishima, Hirokazu Kobayashi, Takuji Yamamoto, Kentaro Mori, Minoru Maeda, Yoshikuni Mizuno, Yasuyuki Okuma

Journal:

Parkinsonism & Related Disorders

Year:

2007

Language:

english

File:

PDF, 219 KB

english, 2007

10

Tandem carbon–carbon bond insertion and intramolecular aldol reaction of benzyne with aroylacetones: novel formation of 4,4′-disubstituted 1,1′-binaphthols

Okuma, Kentaro, Itoyama, Ryoichi, Sou, Ayumi, Nagahora, Noriyoshi, Shioj, Kosei

Journal:

Chemical Communications

Year:

2012

Language:

english

File:

PDF, 666 KB

english, 2012

11

Synthesis of Isolable Thiirane-2-thione (α-Dithiolactone) from Thioketene S -Oxide

Okuma, Kentaro, Shigetomi, Toshiyuki, Nibu, Yoshinori, Shioji, Kosei, Yoshida, Masato, Yokomori, Yoshinobu

Journal:

Journal of the American Chemical Society

Year:

2004

Language:

english

File:

PDF, 63 KB

english, 2004

12

Syntheses of diaza-, azaoxa-, diazaoxa-, and triazasulfonium ions

Minato, Hiroshi, Okuma, Kentaro, Kobayashi, Michio

Journal:

Journal of Organic Chemistry

Year:

1978

Language:

english

File:

PDF, 740 KB

english, 1978

13

Three Component Reaction of Arynes with Cyclic Ethers and Active Methines: Synthesis of ω-Trichloroalkyl Phenyl Ethers

Okuma, Kentaro, Fukuzaki, Yuta, Nojima, Akiko, Sou, Ayumi, Hino, Haruna, Matsunaga, Nahoko, Nagahora, Noriyoshi, Shioji, Kosei, Yokomori, Yoshinobu

Journal:

Bulletin of the Chemical Society of Japan

Year:

2010

Language:

english

File:

PDF, 185 KB

english, 2010

14

Synthetic studies on a series of functionalized pyrylium salts, 4-chloro- and 4-bromophosphinines

Nagahora, Noriyoshi, Tokumaru, Hiroshi, Ikaga, Shinpei, Hanada, Takuya, Shioji, Kosei, Okuma, Kentaro

Journal:

Year:

2018

Language:

english

File:

PDF, 606 KB

english, 2018

15

Late Onset of the Fabella Syndrome after Total Knee Arthroplasty

Kimura, Takeshi, Tanikawa, Hidenori, Hasegawa, Takayuki, Takeda, Kentaro, Harato, Kengo, Kobayashi, Shu, Niki, Yasuo, Okuma, Kazunari

Journal:

Case Reports in Orthopedics

Year:

2019

File:

PDF, 1.84 MB

2019

16

Novel Formation of 1,2-Dithiolane-3-thione from b-Dithiolactone

Okuma, Kentaro, Shigetomi, Toshiyuki, Nojima, Akiko, Shioji, Kosei, Yokomori, Yoshinobu

Journal:

Year:

2006

Language:

english

File:

PDF, 396 KB

english, 2006

17

Reactions of Selenobenzophenones with Olefins

Okuma, Kentaro, Kojima, Kazuki, Shioji, Kosei

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1998

Language:

english

File:

PDF, 175 KB

english, 1998

18

The First Formation of (1 Z )-1-Alkylidene-1 H -isobenzofuranium Amides and 1 H -Inden-1-ones: Acid-Promoted 5- exo Cyclization and Hydration/Aldol Condensation Reactions of o -Ethynylbenzophenones

Nagahora, Noriyoshi, Wasano, Tatsuya, Nozaki, Kazuhiro, Ogawa, Tamaki, Nishijima, Shuhei, Motomatsu, Daiki, Shioji, Kosei, Okuma, Kentaro

Journal:

European Journal of Organic Chemistry

Year:

2014

Language:

english

File:

PDF, 763 KB

english, 2014

19

Reactions of Diaminosulfoxonium Ylides with Aldehydes. Preparation of Cyclopropyldiaminosulfoxonium Salts

Okuma, Kentaro, Sato, Yasunari, Ohta, Hiroshi, Yokomori, Yoshinobu

Journal:

Bulletin of the Chemical Society of Japan

Year:

1994

File:

PDF, 1.19 MB

1994

20

Neighboring Group Participation of Thiofenchone with Acyl Chlorides: Novel Formation of 2-Acyloxy-2,7,7-trimethylnorbornan-1-thiols

Okuma, Kentaro, Yamaguchi, Hazuki, Nagatoshi, Risa, Matsui, Hiroyuki, Iwashita, Hidefumi, Nagahora, Noriyoshi, Shioji, Kosei

Journal:

Chemistry Letters

Year:

2017

Language:

english

File:

PDF, 2.74 MB

english, 2017

21

Photoadhesive of Acrylates Containing Cross-links of Dipyridyl Disulfide

Furutani, Masahiro, Nakayama, Kentaro, Okuma, Kazuki, Arimitsu, Koji

Journal:

Journal of Photopolymer Science and Technology

Year:

2019

File:

PDF, 514 KB

2019

22

ChemInform Abstract: Reaction of Selenobenzophenones with Olefins. Formation of 1H-2-Benzoselenopyrans. Reaction of 1H-2-Benzoselenopyrans with Diazoalkanes.

Kentaro Okuma, Yuji Koga, Kazuki Kojima, Kosei Shioji, Haruo Matsuyama, Yoshinobu Yokomori

Journal:

Year:

2000

File:

PDF, 34 KB

2000

23

Synthesis of 1,3,4-Thiadiazoles from Aldehyde Hydrazones.

Kentaro Okuma, Kazuko Nagakura, Yasutaka Nakajima, Kento Kubo, Kosei Shioji

Journal:

Year:

2005

File:

PDF, 13 KB

2005

24

ChemInform Abstract: Chemoselective Synthesis of Quinoline N-Oxides from 3-(2-Nitrophenyl)-3-hydroxypropanones.

Kentaro Okuma, Jun-ichi Seto, Noriyoshi Nagahora, Kosei Shioji

Journal:

Year:

2011

File:

PDF, 33 KB

2011

25

First Isolation of Thione-Propiolic Acid Adducts − Synthesis of Thiodioxenones

Kentaro Okuma, Shinobu Maekawa, Shinji Shibata, Kosei Shioji, Thoru Inoue, Tsutomu Kurisaki, Hisanobu Wakita, Yoshinobu Yokomori

Journal:

European Journal of Organic Chemistry

Year:

2003

Language:

english

File:

PDF, 90 KB

english, 2003

26

Novel ring contraction of dioxepanes to tetrahydropyrans. Reaction of dioxepanes with trimethylsilyl trifluoromethanesulfonate

Kentaro Okuma, Tetsuji Hayano, Kosei Shioji, Haruo Matsuyama

Journal:

Tetrahedron Letters

Year:

2000

Language:

english

File:

PDF, 118 KB

english, 2000

27

Reactions of selenobenzophenones with dimethyl acetylenedicarboxylate or norbornadiene

Kentaro Okuma, Kazuki Kojima, Isao Kaneko, Hiroshi Ohta

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 268 KB

english, 1992

28

The first isolation of benzyne-thiobenzophenone adducts

Kentaro Okuma, Toshiro Yamamoto, Takafumi Shirokawa, Tsugio Kitamura, Yuzo Fujiwara

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 222 KB

english, 1996

29

Spin-Trapping Properties of 5-(Diphenylphosphinoyl)-5-methyl-4,5-dihydro-3H-pyrrole N-Oxide (DPPMDPO)

Nishizawa, Masahiro, Shioji, Kosei, Kurauchi, Yoshimitsu, Okuma, Kentaro, Kohno, Masahiro

Journal:

Bulletin of the Chemical Society of Japan

Year:

2007

Language:

english

File:

PDF, 259 KB

english, 2007

30

Isolation and Reaction of 1,2-Dithietan-3-one: Formation of Thiolato Thiocarboxylato Metal Complexes

Shigetomi, Toshiyuki, Okuma, Kentaro, Nagahora, Noriyoshi, Yokomori, Yoshinobu

Journal:

Bulletin of the Chemical Society of Japan

Year:

2009

Language:

english

File:

PDF, 225 KB

english, 2009

31

Synthesis of Cyclic Ethers from 3- and 4-Hydroxyalkylphosphonium Salts

Okuma, Kentaro, Sakai, Osami, Hayano, Tetsuji, Shioji, Kosei, Matsuyama, Haruo

Journal:

Bulletin of the Chemical Society of Japan

Year:

2005

Language:

english

File:

PDF, 105 KB

english, 2005

32

Synthesis and Reaction of Oxaphospholanes by Using Hydroxyalkyl-phosphonium Salts.

Journal:

Journal of Synthetic Organic Chemistry Japan

Year:

2000

Language:

english

File:

PDF, 927 KB

english, 2000

33

Reaction of 3,3-di-tert-butylthiirane-2-thione S-oxide (α-dithiolactone S-oxide): synthesis of thiolato sulfinato-platinum and palladium complexes

Toshiyuki Shigetomi, Kosei Shioji, Kentaro Okuma, Tohru Inoue, Yoshinobu Yokomori

Journal:

Year:

2007

Language:

english

File:

PDF, 347 KB

english, 2007

34

Lipase-catalyzed kinetic resolution of racemic seven-membered substituted lactones

Kosei Shioji, Ayako Matsuo, Kentaro Okuma, Kaoru Nakamura, Atsuyoshi Ohno

Journal:

Tetrahedron Letters

Year:

2000

Language:

english

File:

PDF, 60 KB

english, 2000

35

General Synthesis of 2-, 3-, and 4-Hydroxyalkylphosphonium Salts by the Reaction of Triphenylphosphine with Cyclic Ethers in the Presence of Strong Acids

Yamamoto (formerly Nakamura), Shin-ichi, Okuma, Kentaro, Ohta, Hiroshi

Journal:

Bulletin of the Chemical Society of Japan

Year:

1988

File:

PDF, 439 KB

1988

36

2,5-Diaryltellurophenes: Effect of Electron-Donating and Electron-Withdrawing Groups on their Optoelectronic Properties

Nagahora, Noriyoshi, Yahata, Shuhei, Goto, Shoko, Shioji, Kosei, Okuma, Kentaro

Journal:

Journal of Organic Chemistry

Year:

2018

Language:

english

File:

PDF, 3.16 MB

english, 2018

37

ChemInform Abstract: Unusual Formation of a Thiacyclopent-2-ene by the Reaction of 4,4′-Dimethoxythiobenzophenone with Tetracyanoethylene.

Kentaro Okuma, Yoshikazu Tsujimoto

Journal:

Year:

2001

File:

PDF, 30 KB

2001

38

Reaction of Sterically Crowded Selenoketones with Propiolic Acid.

Kentaro Okuma, Shinobu Maekawa, Yoshinori Nito, Kosei Shioji

Journal:

Year:

2005

File:

PDF, 18 KB

2005

39

Unusual formation of a thiacyclopent-2-ene by the reaction of 4,4′-dimethoxythiobenzophenone with tetracyanoethylene

Kentaro Okuma, Yoshikazu Tsujimoto

Journal:

Heteroatom Chemistry

Year:

2001

Language:

english

File:

PDF, 84 KB

english, 2001

40

A new simple synthesis of cis- and trans-3,5-di-tert-butyl-3,5-diaryl-1,2,4-trithiolanes from ketones and tetraphosphorus decasulfide

Okuma, Kentaro, Shibata, Shinji, Shioji, Kosei, Yokomori, Yoshinobu

Journal:

Chemical Communications

Year:

2000

Language:

english

File:

PDF, 387 KB

english, 2000

41

Reaction of Thiofenchone or Thiochamphor with Disulfur Dichloride: Novel Formation of Tricyclic Polysulfanes

Okuma, Kentaro, Munakata, Kazunori

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

2011

Language:

english

File:

PDF, 466 KB

english, 2011

42

Synthesis of 1,3,4-Thiadiazoles from Aldehyde Hydrazones

Okuma, Kentaro, Nagakura, Kazuko, Nakajima, Yasutaka, Kubo, Kento, Shioji, Kosei

Journal:

Year:

2004

Language:

english

File:

PDF, 93 KB

english, 2004

43

SYNTHESIS OF CYCLOPROPYLDIAMINOOXOSULFONIUM SALTS BY THE REACTION OF DIAMINOOXOSULFONIUM YLIDES WITH ALDEHYDES

Okuma, Kentaro, Nakanishi, Kazuto, Honda, Takumi, Ohta, Hiroshi, Yokomori, Yoshinobu, Sekido, Kiyotane

Journal:

Chemistry Letters

Year:

1985

Language:

english

File:

PDF, 6.03 MB

english, 1985

44

Four‐Component Reaction of Arynes with Primary Amines, Aldehydes, and Proton Source: Novel Formation of tert ‐Anilines and 3,1‐Benzoxazines

Okuma, Kentaro, Maehata, Yusuke, Kinoshita, Hiroaki, Sosogi, Kana, Nagahora, Noriyoshi

Journal:

ChemistrySelect

Year:

2019

Language:

english

File:

PDF, 2.08 MB

english, 2019

45

Photopolymerization of vinyl ether by hydroxy- and methylthio-alkylphosphonium salts as novel photocationic initiators

Keiji Komoto, Masahiro Ishidoya, Hisao Ogawa, Hideo Sawada, Kentaro Okuma, Hiroshi Ohata

Journal:

Year:

1994

Language:

english

File:

PDF, 137 KB

english, 1994

46

[IEEE 2011 IEEE International Solid- State Circuits Conference - (ISSCC) - San Francisco, CA, USA (2011.02.20-2011.02.24)] 2011 IEEE International Solid-State Circuits Conference - A 95mV-startup step-up converter with Vth-tuned oscillator by fixed-charge programming and capacitor pass-on scheme

Chen, Po-Hung, Ishida, Koichi, Ikeuchi, Katsuyuki, Zhang, Xin, Honda, Kentaro, Okuma, Yasuyuki, Ryu, Yoshikatsu, Takamiya, Makoto, Sakurai, Takayasu

Year:

2011

Language:

english

File:

PDF, 1.31 MB

english, 2011

47

ChemInform Abstract: Novel One-Pot Synthesis of Polysubstituted Isocoumarins from Arynes and Trifluoroacetylated β-Diketones.

Okuma, Kentaro, Hirano, Koki, Tanabe, Yukiko, Itoyama, Ryoichi, Miura, Atsumi, Nagahora, Noriyoshi, Shioji, Kosei

Journal:

Year:

2014

File:

PDF, 26 KB

2014

48

Reactions of Phosphonium Ylides with S 8 or Se in the Presence of Amines. Formation of Thioaldehydes or Selenoaldehydes

Okuma, Kentaro, Komiya, Yasuo, Ohta, Hiroshi

Journal:

Chemistry Letters

Year:

1988

Language:

english

File:

PDF, 5.89 MB

english, 1988

49

ESR Measurement Using 2-Diphenylphosphinoyl-2-methyl-3,4-dihydro-2 H -pyrrole N -Oxide (DPhPMPO) in Human Erythrocyte Ghosts

Shioji, Kosei, Iwashita, Hidefumi, Shimomura, Taiji, Yamaguchi, Takeo, Okuma, Kentaro

Journal:

Bulletin of the Chemical Society of Japan

Year:

2007

Language:

english

File:

PDF, 118 KB

english, 2007

50

Reaction of Thiochamphor with Disulfur Dichloride: Novel Formation of α-Disulfine

Okuma, Kentaro, Tsubota, Toshiaki, Tabuchi, Miki, Kanto, Masayuki, Nagahora, Noriyoshi, Shioji, Kosei, Yokomori, Yoshinobu

Journal:

Chemistry Letters

Year:

2010

Language:

english

File:

PDF, 86 KB

english, 2010

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