Search Results - "Oishi, Etsuo"

Synthesis of 2-Aroylquinoxalines, 1-Aroylphthalazines, and 4-Aroylcinnolines; an Aroylation Method Using Arenecarbaldehydes Catalyzed by Azolium Salt by Miyashita, Akira, Suzuki, Yumiko, Iwamoto, Ken-ichi, Oishi, Etsuo, Higashino, Takeo

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Application of immunoassay to microquantitation of environmental endocrine disruptors—dioxins-specific immunoassay by IWAMOTO, Ken-ichi, KATO, Ikuo, YU, Xinmin, NAGASAWA, Shingo, KODAIRA, Tsukasa, OISHI, Etsuo, KITAMURA, Kazuyuki, USUKI, Yasuteru, OHNO, Yoshifumi, YANAIHARA, Noboru

“…Polychlorinated dibenzo-p-dioxins belong to a group of widespread environmental endocrine disruptors (EEDs). They are highly stable and have diverse biological…”
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Aroylation of Fused Pyrimidines; Synthesis of 4-Aroylfuro[2,3-d]-, 4-Aroylthieno[2,3-d]-, and 4-Aroylisoxazolo[5,4-d]pyrimidines by Miyashita, Akira, Obae, Kazuhiro, Suzuki, Yumiko, Oishi, Etsuo, Iwamoto, Ken-ichi, Higashino, Takeo

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Phthalazines. XIV. Reaction of Phthalazine 2-Oxide with Acetylenic Dienophiles by OISHI, ETSUO, HAYASHI, EISAKU

“…Phthalazine 2-oxide (I) reacted with dimethyl acetylenedicarboxylate (IIa) to afford 2-phthalazinium 3-methoxy-1-methoxycarbonyl-2, 3-dioxopropylide (III),…”
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Condensed Pyridazines. VI. Reaction of 7- (Methylsulfonyl) 1-phenyl-1H-1, 2, 3-triazolo [4, 5-d] pyridazine with Carbanions and Enamines by OISHI, ETSUO, YAMADA, AKIYA, HAYASHI, EISAKU, HIGASHINO, TAKEO

“…The reaction of 7- (methylsulfonyl) -1-phenyl-1H-1, 2, 3-triazolo [4, 5-d] pyridazine (1) with active methylene compounds or ketones (3a-g) in the presence of…”
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Studies on pyrazolo[3,4-d]pyrimidine derivatives. XVII: reactions of 5-benzoyl-4,5-dihydro-6-methyl-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine-4-carbonitrile (the 6-methylpyrazolopyrimidine Reissert compound) by MIYASHITA, A, SATO, S, TAIDO, N, TANJI, K, OISHI, E, HIGASHINO, T

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Condensed Pyridazines. V. Reactions of 7- (Methylsulfonyl) -1-phenyl-1H-1, 2, 3-triazolo [4, 5-d] pyridazine with Methoxide Ion, Grignard Reagents, Hydrazines, and Amines by OISHI, ETSUO, YAMADA, AKIYA, HAYASHI, EISAKU, HIGASHINO, TAKEO

“…Nucleophiles were found to react with 7- (methylsulfonyl) -1-phenyl-1H-1, 2, 3-triazolo [4, 5-d] -pyridazine (1) in three ways, depending on the nature of the…”
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Condensed Pyridazines. III. Reaction of 4, 7-Dichloro-1-phenyl-1H-pyrazolo [3, 4-d] pyridazine with Carbanions by OISHI, ETSUO, MATSUBARA, HIDEKI, HAYASHI, EISAKU

“…4, 7-Dichioro-1-phenyl-1H-pyrazolo [3, 4-d] pyridazine (I) reacted with active methylene compounds i.e. ethyl cyanoacetate (IIa), ethyl acetoacetate (IIb),…”
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Phthalazines. III. : On the Reaction of 1-(Methylsulfonyl)-4-phenylphthalazine with Ketones by Hayashi, Eisaku, Oishi, Etsuo

“…The ring-carbon in of 1-position 1-(methylsulfonyl)-4-phenylphthalazine (I) is active to nucleophilic reagents and the methylsulfonyl group is substituted. In…”
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Condensed Pyridazines. II. Chemical Properties of 5-Phenylpyrido [2, 3-d] pyridazine 7-Oxide by OISHI, ETSUO, NAKAMURA, KATSUMI, HAYASHI, EISAKU

“…Chemical properties of 5-phenylpyrido[2, 3-d]pyridazine 7-oxide (II), obtained in the reaction of 5-phenylpyrido[2, 3-d]pyridazine (I) with m-chloroperbenzoic…”
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Condensed Pyridazines. I. Reaction of 5, 8-Dichloropyrido-[2, 3-d] pyridazine with Carbanion by OISHI, ETSUO, WATANABE, HIROMI, HAYASHI, EISAKU

“…5, 8-Dichloropyrido[2, 3-d]pyridazine (I), in benzene in the presence of sodium amide, reacted with active methylene compounds ; ethyl cyanoacetate (IIa),…”
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Reaction of [1,4]Benzodioxino-pyridazines with Sodium Methoxide and Amines by Oishi, Etsuo, Sugiyama, Chitose, Iwamoto, Ken-ichi, Kato, Ikuo

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Condensed Pyridazines. IV. Chemical Properties of 7-Methoxy-1-phenyl-1H-pyrazolo [3, 4-d] pyridazine 5-Oxide by OISHI, ETSUO, ENDO, TAKESHI, ASAHINA, YOSHIKAZU, HAYASHI, EISAKU

“…Chemical properties of 7-methoxy-1-phenyl-1H-pyrazolo [3, 4-d] pyridazine 5-oxide (V) obtained in the reaction of 7-methoxy-1-phenyl-1H-pyrazolo [3, 4-d]…”
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Phthalazines. IX. On the Reaction of 1-(Methylsulfonyl) phthalazine with Ketones (Supplement) by OISHI, ETSUO

“…The structure of the nucleophilic substitution products of 1-(methylsulfonyl) phthalazine (I) at 4-position, obtained by the reaction of I with acetophenone…”
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Phthalazines. VII. : On the Reaction of 1-(Methylsulfonyl)-phthalazine with Nucleophiles by OISHI, ETSUO

“…The ring carbon at 1-position in 1-(methylsulfonyl) phthalazine (I) is active to nucleophilic reagents, same as that in 1-(methylsulfonyl)-4-phenylphthalazine,…”
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Grignard reactions of 1-phthalazine-, 2-quinoxaline-, and 4-cinnoline-carbonitrile by HAYASHI, EISAKU, IINUMA, MITSUHISA, UTSUNOMIYA, IWAO, IIJIMA, CHIHOKO, OISHI, ETSUO, HIGASHINO, TAKEO

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Phthalazines. XIII. Reaction of 1-Substituted Phthalazine 3-Oxides with Acetylenic Dienophiles by OISHI, ETSUO, YAMAMOTO, HIROKO, HAYASHI, EISAKU

“…1-Phenyl, 1-methoxy, 1-phenoxy, 1-benzylphthalazine 3-oxides (Ia-d) reacted with dimethyl acetylenedicarboxylate (II) to afford four kinds of adducts : methyl…”
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Phthalazine誘導体に関する研究(第14報)Phthalazine2-OxideとAcetylenic Dienophileとの反応 by 大石, 悦男, 林, 英作

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Phthalazine誘導体に関する研究(第7報) : 1-(Methylsulfonyl)-phthalazineと求核試薬との反応について by 大石, 悦男

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縮合環を有するPyridazine誘導体に関する研究(第3報)4,7-Dichloro-1-phenyl-1H-pyrazolo[3,4-d]pyridazineとCarbanion類との反応 by 大石, 悦男, 松原, 秀樹, 林, 英作

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