Igeta, Hiroshi: search on Z-Library

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1

Thermal decomposition of 2H-(1,2,4)oxadiazolo(2,3-a)pyridine-2-thione and 2H-(1,2,4)oxadiazolo(2,3-b)pyridazine-2-thiones: Generation of aza-heteroaromatic .ALPHA.-isocyanates and their utilization for the synthesis of unsymmetrical disubstituted ureas.

OHSAWA, AKIO, ARAI, HEIHACHIRO, IGETA, HIROSHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1980

File:

PDF, 729 KB

1980

2

Syntheses of 3,3′-bipyridazine derivatives

Hiroshi Igeta, Takashi Tsuchiya, Mutsumi Nakajima, Hideharu Yokogawa

Journal:

Tetrahedron Letters

Year:

1969

Language:

english

File:

PDF, 155 KB

english, 1969

3

Reaction of pyridazine n-oxides with organometallic compounds

Hiroshi Igeta, Takashi Tsuchiya, Toshiko Nakai

Journal:

Tetrahedron Letters

Year:

1969

Language:

english

File:

PDF, 223 KB

english, 1969

4

Photo-induced oxygenation by pyridazine N-oxides. : II. Formation of epoxides from ethylenic compounds

Takashi Tsuchiya, Heihachiro Arai, Hiroshi Igeta

Journal:

Tetrahedron Letters

Year:

1969

Language:

english

File:

PDF, 228 KB

english, 1969

5

Photo-sensitized oxygenation of (1H)-1,2-diazepines

Takashi Tsuchiya, Heihachiro Arai, Hiroshi Hasegawa, Hiroshi Igeta

Journal:

Tetrahedron Letters

Year:

1974

Language:

english

File:

PDF, 209 KB

english, 1974

6

Copper-complexes of pyridazine N-oxides; The synthesis and x-ray studies

Akio Ohsawa, Toshio Akimoto, Akio Tsuji, Hiroshi Igeta

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 234 KB

english, 1978

7

1,3-Dipolar cycloaddition of pyridazinium N-ylides with perhalocycloalkenes

Akio Ohsawa, Ikuo Wada, Hiroshi Igeta, Toshio Akimoto, Akio Tsuji, Yoichi Iitaka

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 214 KB

english, 1978

8

Photochemistry. III. The photolysis of 3,4,5,6-tetraphenylpyridazine n-oxides

Takashi Tsuchiya, Heihachiro Arai, Hiroshi Igeta

Journal:

Tetrahedron Letters

Year:

1971

Language:

english

File:

PDF, 204 KB

english, 1971

9

Dimerization of 1-methyl pyridazinium salts by the action of cyanide ion formation of the dimers with cyclobutane ring

Hiroshi Igeta, Takashi Tsuchiya, Chisato Kaneko

Journal:

Tetrahedron Letters

Year:

1971

Language:

english

File:

PDF, 219 KB

english, 1971

10

Reactions of 5,6-benzo-1,2,3-triazine 3-oxides with phenylmagnesium bromide

Hiroshi Igeta, Takashi Tsuchiya, Toshiko Nakai

Journal:

Tetrahedron Letters

Year:

1971

Language:

english

File:

PDF, 210 KB

english, 1971

11

Photo-induced oxygenation by pyridazine N-oxides. III. Oxygenation of polymethylbenzenes

Takashi Tsuchiya, Heihachiro Arai, Hiroshi Igeta

Journal:

Tetrahedron Letters

Year:

1970

Language:

english

File:

PDF, 177 KB

english, 1970

12

A photochemical reaction of 3,6-dichloropyridazines

Takashi Tsuchiya, Heihachiro Arai, Hiroshi Igeta

Journal:

Tetrahedron Letters

Year:

1970

Language:

english

File:

PDF, 185 KB

english, 1970

13

Photochemistry—xiii: The photokomerization of pyridazine 1 ,2-dioxides: formation of 3a,6a-dihydroisoxazolo[5,4-d]isoxazole

Akio Ohsawa, Heihachiro Arai, Hiroshi Igeta, Toshio Akimoto, Akio Tsuji, Yoichi Iitaka

Journal:

Year:

1979

Language:

english

File:

PDF, 411 KB

english, 1979

14

Oxidative Cyclization of 2-Unsaturated 1,4-Dioximes

Igeta, Hiroshi, Ohsawa, Akio, Arai, Heihachiro

Journal:

Year:

1978

Language:

english

File:

PDF, 137 KB

english, 1978

15

Oxidation of 1-aminopyrazoles and synthesis of 1,2,3-triazines

Ohsawa, Akio, Arai, Heihachiro, Ohnishi, Hidefumi, Itoh, Takashi, Kaihoh, Terumitsu, Okada, Mamiko, Igeta, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1985

Language:

english

File:

PDF, 549 KB

english, 1985

16

Mass spectra of pyridazines and their N-oxides

Haruo Ogura, Shingo Sugimoto, Hiroshi Igeta, Takashi Tsuchiya

Journal:

Journal of Heterocyclic Chemistry

Year:

1971

File:

PDF, 235 KB

1971

17

Determination of disulfide array and subunit structure of taste-modifying protein, miraculin

Hiroshi Igeta, Yoichiro Tamura, Kazuyasu Nakaya, Yasuharu Nakamura, Yoshie Kurihara

Journal:

Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology

Year:

1991

Language:

english

File:

PDF, 490 KB

english, 1991

18

Sulfur-Containing Polypeptides. II. Selective Removal of S-Protective Groups from Some L-Cysteinyl-L-cysteine Derivatives 1,2

Hiskey, Richard G., Mizoguchi, Tomishige, Igeta, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1966

Language:

english

File:

PDF, 686 KB

english, 1966

19

Flash vacuum pyrolysis of substituted pyridine N-oxides and its application to syntheses of heterocyclic compounds

Ohsawa, Akio, Kawaguchi, Takayuki, Igeta, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1982

Language:

english

File:

PDF, 767 KB

english, 1982

20

Oxidative cyclization of dioximes and bis(hydrazones) of 2-unsaturated 1,4-diketones

Ohsawa, Akio, Arai, Heihachiro, Igeta, Hiroshi, Akimoto, Toshio, Tsuji, Akio, Iitaka, Yoichi

Journal:

Journal of Organic Chemistry

Year:

1979

Language:

english

File:

PDF, 750 KB

english, 1979

21

Correction to the structure of the photo-isomers of pyridazine 1,2-dioxides; X-ray crystal structure analysis

Arai, Heihachiro, Ohsawa, Akio, Saiki, Katsunori, Igeta, Hiroshi, Tsuji, Akio, Akimoto, Toshio, Iitaka, Yoichi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1977

Language:

english

File:

PDF, 170 KB

english, 1977

22

Photochemical synthesis of 1H-1,2-benzodiazepines from N-iminoquinolinum ylide dimers

Tsuchiya, Takashi, Kurita, Jyoji, Igeta, Hiroshi, Snieckus, Victor

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1974

Language:

english

File:

PDF, 163 KB

english, 1974

23

Synthesis, oxidation, and reduction of monocyclic 1,2,3-triazines

Ohsawa, Akio, Arai, Heihachiro, Ohnishi, Hidefumi, Igeta, Hiroshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1980

Language:

english

File:

PDF, 234 KB

english, 1980

24

Photolysis of pyridazine 1,2-dioxides; formation of the novel 1,4,6,7-dioxadiazocin ring system

Arai, Heihachiro, Ohsawa, Akio, Saiki, Katsunori, Igeta, Hiroshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1977

Language:

english

File:

PDF, 147 KB

english, 1977

25

Photolysis of pyridazinium dicyanomethylides

Arai, Heihachiro, Igeta, Hiroshi, Tsuchiya, Takashi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1973

Language:

english

File:

PDF, 106 KB

english, 1973

26

1,2,3-Triazine

Ohsawa, Akio, Arai, Heihachiro, Ohnishi, Hidefumi, Igeta, Hiroshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1981

Language:

english

File:

PDF, 104 KB

english, 1981

27

Reaction of 5,6-benzo-1,2,4-triazine 1-oxides with Grignard reagents

Igeta, Hiroshi, Nakai, Toshiko, Tsuchiya, Takashi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1973

Language:

english

File:

PDF, 112 KB

english, 1973

28

The reaction of 1,2,3-triazines with Grignard reagents

Ohsawa, Akio, Kaihoh, Terumitsu, Igeta, Hiroshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1985

Language:

english

File:

PDF, 178 KB

english, 1985

29

Reaction of N-methoxypyridazinium salts with hydroxide ion: formation of vinyl diazomethanes

Tsuchiya, Takashi, Kaneko, Chisato, Igeta, Hiroshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1975

Language:

english

File:

PDF, 138 KB

english, 1975

30

Photolysis of tetrazolo[1,5-b]pyridazines; formation of cyanocyclopropenes

Tsuchiya, Takashi, Arai, Heihachiro, Igeta, Hiroshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1972

Language:

english

File:

PDF, 120 KB

english, 1972

31

Photolysis of pyridazine N-oxides; formation of cyclopropenyl ketones

Tsuchiya, Takashi, Arai, Heihachiro, Igeta, Hiroshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1972

Language:

english

File:

PDF, 158 KB

english, 1972

32

Reactions of 1,2,3-Triazines with Nucleophilic Reagents

Igeta, Hiroshi, Kaihoh, Terumitsu, Ohsawa, Akio, Itoh, Takashi

Journal:

Year:

1985

Language:

english

File:

PDF, 26 KB

english, 1985

33

Synthesis of Pyrido[2,1-a]isoindol-6(2H)-one and Its Analogs

Igeta, Hiroshi, Abe, Yohshihito, Ohsawa, Akio

Journal:

Year:

1982

Language:

english

File:

PDF, 71 KB

english, 1982

34

Thermal Decomposition of 1,3-Dipolar Cycloadducts of Pyridazine N-Acetylimines and Tetrachlorocyclopropene

Igeta, Hiroshi, Ohsawa, Akio, Wada, Ikuo

Journal:

Year:

1981

Language:

english

File:

PDF, 84 KB

english, 1981

35

One-step Synthesis of 3-(Dialkylamino)indolizines by the Palladium-catalyzed Reaction of α-Bromopyridine, Propargyl Alcohol, and Secondary Amine

Ohsawa, Akio, Abe, Yoshihito, Igeta, Hiroshi

Journal:

Bulletin of the Chemical Society of Japan

Year:

1980

File:

PDF, 526 KB

1980

36

ONE-STEP SYNTHESIS OF 3-DIALKYLAMINOINDOLIZINES

Ohsawa, Akio, Abe, Yoshihito, Igeta, Hiroshi

Journal:

Chemistry Letters

Year:

1979

Language:

english

File:

PDF, 3.74 MB

english, 1979

37

FLASH VACUUM PYROLYSIS OF 2-BENZYLPYRIDINE N -OXIDES. SYNTHESIS OF METHYLPYRIDO[1,2- a ]INDOLES

Ohsawa, Akio, Kawaguchi, Takayuki, Igeta, Hiroshi

Journal:

Chemistry Letters

Year:

1981

Language:

english

File:

PDF, 3.12 MB

english, 1981

38

Syntheses of Pyridazine Derivatives. VII. Reactivity of 3-Hydroxypyridazine 1-Oxide. (1).

Igeta, Hiroshi, Yamada, Mutsumi, Yoshioka, Yuko, Kawazoe, Yutaka

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1967

File:

PDF, 513 KB

1967

39

Photo-induced Oxygenation of Hydrocarbons by Pyridazine N-oxides

IGETA, HIROSHI, TSUCHIYA, TAKASHI, YAMADA, MUTSUMI, ARAI, HEIHACHIRO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1968

File:

PDF, 465 KB

1968

40

Studies on Hydrogen Exchange. VIII. The Basecatalysed Hydrogen Exchange of Methyl Hydrogens of Methylpyridazines and Their N-Oxides.

Kawazoe, Yutaka, Yoshioka, Yuko, Yamada, Mutsumi, Igeta, Hiroshi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1967

File:

PDF, 430 KB

1967

41

3, 3'-Bipyridazine Derivatives as Spectrophotometric Reagents for Iron. II

MAEDA, MASAKO, TSUJI, AKIO, IGETA, HIROSHI, TSUCHIYA, TAKASHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 546 KB

1970

42

Studies on Pyridazines. XVIII. Cyanation of 3, 3'-Bipyridazines and Their N-Oxides via Their Quaternary Salts

IGETA, HIROSHI, TSUCHIYA, TAKASHI, OKUDA, CHISATO, YOKOGAWA, HIDEHARU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1971

Language:

english

File:

PDF, 519 KB

english, 1971

43

Studies on Pyridazines. XI. Reactivity of 3-Hydroxypyridazine 1-Oxides. (3). Nuclear Magnetic Resonance Studies of 3-Hydroxypyridazine 1-Oxide and Its Derivatives

IGETA, HIROSHI, TSUCHIYA, TAKASHI, NAKAJIMA, MUTSUMI, YOKOGAWA, HIDEHARU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1969

File:

PDF, 625 KB

1969

44

Studies on Pyridazines. XIV. Syntheses of 3, 3'-Bipyridazines

IGETA, HIROSHI, TSUCHIYA, TAKASHI, NAKAJIMA, MUTSUMI, OKUDA, CHISATO, YOKOGAWA, HIDEHARU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 536 KB

1970

45

Studies on Pyridazines. XV. N-Oxidation of 3, 3'-Bipyridazines and Reactions of Their N-Oxides

IGETA, HIROSHI, TSUCHIYA, TAKASHI, OKUDA, CHISATO, YOKOGAWA, HIDEHARU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 863 KB

1970

46

Photochemistry. II. Formation of Methyl Paraconates and Dimethyl Succinates from Pyridazines

TSUCHIYA, TAKASHI, ARAI, HEIHACHIRO, IGETA, HIROSHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1971

Language:

english

File:

PDF, 754 KB

english, 1971

47

Studies on Pyridazines. XX. Syntheses of 1, 2-Bis (3'-pyridazinyl)-ethenes, -ethanes, and Their Di-N-oxides

IGETA, HIROSHI, TSUCHIYA, TAKASHI, KANEKO, CHISATO, SUZUKI, SACHIKO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1973

Language:

english

File:

PDF, 588 KB

english, 1973

48

Photochemistry. VI. Photo-induced Methylation of Pyridazines

TSUCHIYA, TAKASHI, ARAI, HEIHACHIRO, IGETA, HIROSHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

Language:

english

File:

PDF, 436 KB

english, 1972

49

Photochemistry. VII. Photolyses of Polyphenylpyridazine N-Oxides

TSUCHIYA, TAKASHI, ARAI, HEIHACHIRO, TONAMI, TATSUO, IGETA, HIROSHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

Language:

english

File:

PDF, 598 KB

english, 1972

50

Photochemistry. XII. Photochemical behavior of 2-methyl-3(2H)-pyridazinone 1-oxides.

TSUCHIYA, TAKASHI, ARAI, HEIHACHIRO, HASEBE, MASATO, IGETA, HIROSHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1974

File:

PDF, 656 KB

1974