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1

Thiourea and Selenourea and Their Applications

Koketsu, Mamoru, Ishihara, Hideharu

Journal:

Current Organic Synthesis

Year:

2006

Language:

english

File:

PDF, 89 KB

english, 2006

2

Efficient Synthesis of Selenoureas from the Corresponding Carbodiimides.

Mamoru Koketsu, Naotaka Takakura, Hideharu Ishihara

Journal:

Year:

2003

File:

PDF, 84 KB

2003

3

Preparation of 4,5-dihydro-1,3-selenazoles by reaction of aromatic primary selenoamides with acetylenedicarboxylate

Mamoru Koketsu, Hiromune Ando, Tomomi Sasaki, Hideharu Ishihara

Journal:

Journal of Heterocyclic Chemistry

Year:

2007

Language:

english

File:

PDF, 136 KB

english, 2007

4

Dependence of acceptor levels and hole mobility on acceptor density and temperature in Al-doped p-type 4H-SiC epilayers

Matsuura, Hideharu, Komeda, Masahiko, Kagamihara, Sou, Iwata, Hirofumi, Ishihara, Ryohei, Hatakeyama, Tetsuo, Watanabe, Takatoshi, Kojima, Kazutoshi, Shinohe, Takashi, Arai, Kazuo

Journal:

Journal of Applied Physics

Year:

2004

Language:

english

File:

PDF, 407 KB

english, 2004

5

Preparation of 1,3-Selenazol-4-one Derivatives from Primary Selenoamides and Haloacyl Halides

Koketsu, Mamoru, Takenaka, Yuichi, Ishihara, Hideharu

Journal:

Year:

2001

Language:

english

File:

PDF, 68 KB

english, 2001

6

Reaction of Primary Selenoamides with Bisacyl Chlorides: Syntheses of 6-Hydroxy-1,3-selenazin-4-ones and Selenoanhydrides

Koketsu, Mamoru, Hiramatsu, Sohma, Ishihara, Hideharu

Journal:

Chemistry Letters

Year:

1999

File:

PDF, 336 KB

1999

7

A Facile Preparation of Aliphatic and Aromatic Primary Selenoamides Using 4-Methylselenobenzoate as a New Selenating Reagent

Ishihara, Hideharu, Yosimura, Katsuhiro, Kouketsu, Mamoru

Journal:

Chemistry Letters

Year:

1998

File:

PDF, 360 KB

1998

8

Comparison of performances of artificial intelligence versus expert endoscopists for real-time assisted diagnosis of esophageal squamous cell carcinoma (with video)

Fukuda, Hiromu, Ishihara, Ryu, Kato, Yusuke, Matsunaga, Takashi, Nishida, Tsutomu, Yamada, Takuya, Ogiyama, Hideharu, Horie, Mai, Kinoshita, Kazuo, Tada, Tomohiro

Journal:

Gastrointestinal Endoscopy

Year:

2020

File:

PDF, 12.73 MB

2020

9

Eine einfache Synthese von β-Selenolactamen

Dr. Hideharu Ishihara, Michinari Yoshimi, Prof. Dr. Shinzi Kato

Journal:

Angewandte Chemie

Year:

1990

Language:

german

File:

PDF, 239 KB

german, 1990

10

A Facile Synthesis of β-Selenolactams

Dr. Hideharu Ishihara, Michinari Yoshimi, Prof. Dr. Shinzi Kato

Journal:

Angewandte Chemie International Edition

Year:

1990

Language:

english

File:

PDF, 237 KB

english, 1990

11

Synthesis and Characterization of O-Triorganosilyl Selenocarboxylates

Shinzi Kato, Hideki Kageyama, Yasuyuki Kawahara, Toshiaki Murai, Hideharu Ishihara

Journal:

European Journal of Inorganic Chemistry

Year:

1992

Language:

english

File:

PDF, 663 KB

english, 1992

12

ChemInform Abstract: A Facile Preparation of Aliphatic and Aromatic Primary Selenoamides (II), (V) and (VI) Using 4-Methylselenobenzoate as a New Selenating Reagent.

Hideharu Ishihara, Katsuhiro Yosimura, Mamoru Kouketsu

Journal:

Year:

1999

File:

PDF, 29 KB

1999

13

ChemInform Abstract: Synthesis and Characterization of Novel 1,3-Selenazine Derivatives. BF3×Et2O-Assisted Reaction of Primary Selenoamides with α,β-Unsaturated Ketones.

Mamoru Koketsu, Takayuki Senda, Katsuhiro Yoshimura, Hideharu Ishihara

Journal:

Year:

1999

File:

PDF, 38 KB

1999

14

ChemInform Abstract: Reaction of Primary Selenoamides with Bisacyl Chlorides: Syntheses of 6-Hydroxy-1,3-selenazin-4-ones and Selenoanhydrides.

Mamoru Koketsu, Sohma Hiramatsu, Hideharu Ishihara

Journal:

Year:

1999

File:

PDF, 31 KB

1999

15

ChemInform Abstract: Preparation of Isoselenocyanate and Synthesis of Carbodiimide by Oxidation of Selenourea.

Mamoru Koketsu, Norihito Suzuki, Hideharu Ishihara

Journal:

Year:

2000

File:

PDF, 30 KB

2000

16

ChemInform Abstract: Preparation of 1,3-Selenazol-4-one Derivatives from Primary Selenoamides and Haloacyl Halides.

Mamoru Koketsu, Yuichi Takenaka, Hideharu Ishihara

Journal:

Year:

2001

File:

PDF, 29 KB

2001

17

ChemInform Abstract: Preparation of 1,4-Oxaselenin from AgNO3/LDA-Assisted Reaction of 3-Selena-4-pentyn-1-one as Potential Antitumor Agents.

Mamoru Koketsu, Hyun Ok Yang, Yong Man Kim, Michiko Ichihashi, Hideharu Ishihara

Journal:

Year:

2001

File:

PDF, 30 KB

2001

18

ChemInform Abstract: Facile Preparation of 1,3-Selenazine Derivatives by Reaction of Primary Selenoamides with α,β-Unsaturated Aldehydes in the Presence of BF3×Et2O.

Mamoru Koketsu, Yuichi Takenaka, Sohma Hiramatsu, Hideharu Ishihara

Journal:

Year:

2001

File:

PDF, 35 KB

2001

19

ChemInform Abstract: Reaction of Allenyl Selenoketene, Generated by [3,3] Sigmatropic Rearrangement, with Amines.

Mamoru Koketsu, Masanori Kanoh, Emi Itoh, Hideharu Ishihara

Journal:

Year:

2001

File:

PDF, 30 KB

2001

20

ChemInform Abstract: Preparation of N,N-Unsubstituted Selenoureas and Thioureas from Cyanamides.

Mamoru Koketsu, Yoshihisa Fukuta, Hideharu Ishihara

Journal:

Year:

2001

File:

PDF, 27 KB

2001

21

ChemInform Abstract: Reaction of Lithium Aluminum Hydride with Elemental Selenium: Its Application as a Selenating Reagent into Organic Molecules.

Hideharu Ishihara, Mamoru Koketsu, Yoshihisa Fukuta, Futoshi Nada

Journal:

Year:

2001

File:

PDF, 33 KB

2001

22

ChemInform Abstract: Facile Preparation of 2-Imino-1,3-selenazolidin-4-one Derivatives by Reaction of N,N′-Disubstituted Selenoureas with α-Haloacyl Halides.

Mamoru Koketsu, Futoshi Nada, Hideharu Ishihara

Journal:

Year:

2002

File:

PDF, 32 KB

2002

23

ChemInform Abstract: Preparation and Characterization of N-Alkyl-Se-alkylselenocarbamates.

Mamoru Koketsu, Masaru Ishida, Naotaka Takakura, Hideharu Ishihara

Journal:

Year:

2002

File:

PDF, 31 KB

2002

24

ChemInform Abstract: Reaction of N,N-Dimethylselenocarbamoyl Chloride with Nucleophiles. Preparation of Diselenocarbamates, Selenothiocarbamates, and Selenoureas.

Mamoru Koketsu, Yoshihisa Fukuta, Hideharu Ishihara

Journal:

Year:

2002

File:

PDF, 28 KB

2002

25

ChemInform Abstract: Synthesis of 3-Alkylseleno-2-cyclobutenone via [2 + 2] Cycloaddition Reaction of Alkyneselenolate with Diphenylketene.

Mamoru Koketsu, Masanori Kanoh, Hideharu Ishihara

Journal:

Year:

2002

File:

PDF, 27 KB

2002

26

ChemInform Abstract: Reactions of Acyl Chlorides with LiAlHSeH. Preparation of Diacyl Selenides, Diacyl Diselenides, Selenocarboxylates and Cyclic Selenoanhydrides.

Mamoru Koketsu, Futoshi Nada, Sohma Hiramatsu, Hideharu Ishihara

Journal:

Year:

2002

File:

PDF, 29 KB

2002

27

ChemInform Abstract: Facile Synthesis of N,N-Dialkylselenoamides from Amides.

Mamoru Koketsu, Yoshihiro Okayama, Hiroshi Aoki, Hideharu Ishihara

Journal:

Year:

2002

File:

PDF, 27 KB

2002

28

Syntheses of 2-Alkylthio-1,3-thiazine Derivatives from S-Alkyldithiocarbamates and α,β-Unsaturated Ketones.

Mamoru Koketsu, Miki Okumura, Hideharu Ishihara

Journal:

Year:

2002

File:

PDF, 40 KB

2002

29

Syntheses of Cyanoselenoamides and Diselenoamides: Conversion into Selenazoles and Selenazines.

Mamoru Koketsu, Yuichi Takenaka, Hideharu Ishihara

Journal:

Year:

2003

File:

PDF, 131 KB

2003

30

Syntheses of 4-Selenazolones. Hetero Diels—Alder Reaction of the Selenazadienes with DMAD.

Mamoru Koketsu, Futoshi Nada, Takumi Mio, Hideharu Ishihara

Journal:

Year:

2003

File:

PDF, 94 KB

2003

31

Synthesis of N-Aryl S-Alkylthiocarbamates.

Mamoru Koketsu, Chikashi Kobayashi, Hideharu Ishihara

Journal:

Year:

2003

File:

PDF, 85 KB

2003

32

A Convenient Synthesis of Diacyl Sulfides Using a Novel Sulfur Transfer Reagent.

Mamoru Koketsu, Yoji Sekiya, Hideharu Ishihara

Journal:

Year:

2004

File:

PDF, 82 KB

2004

33

Synthetic Studies on Sialoglycoconjugates. Part 131. Synthesis and Selectin-Blocking Activity of a Novel Analogue of Sulfatide: 3-C-Carboxymethylgalactosyl Lipid.

Ai Ishihara, Hideharu Ishida, Takao Ikami, Noboru Tomiya, Hiromune Ando, Makoto Kiso

Journal:

Year:

2004

File:

PDF, 68 KB

2004

34

Facile Preparation of 1,3-Selenazole-5-carboxylic Acids and the Carboxylates by Reaction of Selenazadienes with Chloroacetyl Chloride.

Mamoru Koketsu, Takumi Mio, Hideharu Ishihara

Journal:

Year:

2004

File:

PDF, 94 KB

2004

35

First Synthesis of a Trisaccharide of Glycosylkaemferide: A Resistance Factor in Carnations.

Mamoru Koketsu, Motoaki Kuwahara, Hisako Sakurai, Hideharu Ishihara

Journal:

Year:

2004

File:

PDF, 64 KB

2004

36

Synthesis and Characterization of 2-Iminoperhydro-1,3-selenazin-4-ones by Reaction of N,N′-Disubstituted Selenoureas with Acryloyl Chloride.

Mamoru Koketsu, Masayasu Taura, Hideharu Ishihara

Journal:

Year:

2005

File:

PDF, 13 KB

2005

37

Synthesis of 3-Acyl-1-alkyl-2-alkylseleno-1-cyclobutene Using Alkyneselenolate.

Mamoru Koketsu, Kayo Mizutani, Tomoko Ogawa, Ayako Takahashi, Hideharu Ishihara

Journal:

Year:

2005

File:

PDF, 27 KB

2005

38

Synthesis of 1-Alkylselenocyclobutene via Intermediate Allenyl Selenoketene.

Mamoru Koketsu, Masanori Kanoh, Yusuke Yamamura, Hideharu Ishihara

Journal:

Year:

2005

File:

PDF, 15 KB

2005

39

Reactions of 2-Pentynyl Trimethylsilylethynyl Selenides with Primary Amines via Allenyl Selenoketene.

Mamoru Koketsu, Masanori Kanoh, Hideharu Ishihara

Journal:

Year:

2005

File:

PDF, 16 KB

2005

40

Synthesis of 1,3-Selenazole and 1,3-Selenazine Using Selenoamide and Selenourea

Mamoru Koketsu, Hideharu Ishihara

Journal:

Year:

2005

File:

PDF, 8 KB

2005

41

Potent Inhibitory Effects of N-Aryl S-Alkylthiocarbamate Derivatives on the Dopa Oxidase Activity of Mushroom Tyrosinase.

Kun Ho Lee, Mamoru Koketsu, Sang Yoon Choi, Kang Jin Lee, Pyeongjae Lee, Hideharu Ishihara, Sun Yeou Kim

Journal:

Year:

2005

File:

PDF, 13 KB

2005

42

Facile synthesis of N,N-dialkylselenoamides from amides

Mamoru Koketsu, Yoshihiro Okayama, Hiroshi Aoki, Hideharu Ishihara

Journal:

Heteroatom Chemistry

Year:

2002

Language:

english

File:

PDF, 128 KB

english, 2002

43

Syntheses of 2-alkylthio-1,3-thiazine derivatives from S-alkyldithiocarbamates and α,β-unsaturated ketones

Mamoru Koketsu, Miki Okumura, Hideharu Ishihara

Journal:

Heteroatom Chemistry

Year:

2002

Language:

english

File:

PDF, 131 KB

english, 2002

44

Syntheses of cyanoselenoamides and diselenoamides: Conversion into selenazoles and selenazines

Mamoru Koketsu, Yuichi Takenaka, Hideharu Ishihara

Journal:

Heteroatom Chemistry

Year:

2003

Language:

english

File:

PDF, 100 KB

english, 2003

45

Synthesis of N-aryl S-alkylthiocarbamates

Mamoru Koketsu, Chikashi Kobayashi, Hideharu Ishihara

Journal:

Heteroatom Chemistry

Year:

2003

Language:

english

File:

PDF, 109 KB

english, 2003

46

A convenient synthesis of diacyl sulfides using a novel sulfur transfer reagent

Mamoru Koketsu, Yoji Sekiya, Hideharu Ishihara

Journal:

Heteroatom Chemistry

Year:

2003

Language:

english

File:

PDF, 71 KB

english, 2003

47

A facile synthesis of 2-amino-1,3-selenazole by reaction of N,N-unsubstituted selenourea with ketone

Mamoru Koketsu, Koichi Kanoh, Hiromune Ando, Hideharu Ishihara

Journal:

Heteroatom Chemistry

Year:

2006

Language:

english

File:

PDF, 237 KB

english, 2006

48

Synthesis and reaction of selenocarbamic acid sodium and potassium salts and organo-germanium, -tin, and -lead esters

Shinzi Kato, Toshiaki Kawachi, Kazumasa Ibi, Shoho Nakaiida, Kohji Kawai, Takahiro Kanda, Toshiaki Murai, Hideharu Ishihara

Journal:

Heteroatom Chemistry

Year:

1995

Language:

english

File:

PDF, 668 KB

english, 1995

49

2-(4-methylphenyl)-1,3-selenazol-4-one induces apoptosis by different mechanisms in SKOV3 and HL 60 cells

Hak Jun Ahn, Mamoru Koketsu, Eun Mi Yang, Yong Man Kim, Hideharu Ishihara, Hyun Ok Yang

Journal:

Journal of Cellular Biochemistry

Year:

2006

Language:

english

File:

PDF, 330 KB

english, 2006

50

Synthesis and characterization of 2-iminoperhydro-1,3-selenazin-4-ones by reaction of N,N'-disubstituted selenoureas with acryloyl chloride

Mamoru Koketsu, Masayasu Taura, Hideharu Ishihara

Journal:

Journal of Heterocyclic Chemistry

Year:

2004

Language:

english

File:

PDF, 133 KB

english, 2004

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