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T. Uryu

Tohoku University

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Publication

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Journal of The Chemical Society-perkin Transactions 1 | 1973

Studies on the syntheses of heterocyclic compounds. Part DII. Synthesis of 1-substituted 1,2,3,4-tetrahydrophthalazines by a pictet–spengler-type reaction of 3-hydroxybenzylhydrazine with carbonyl compounds

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Haruhide Ishimaru; T. Uryu; Seiji Haga

Condensations of 3-hydroxybenzylhydrazine with acetone, ethyl methyl ketone, diethyl ketone, cyclohexanone, and 1-methyl-4-piperidone in the presence of acid gave the 1,1-disubstituted 1,2,3,4-tetrahydrophthalazines (2)–(6). On the other hand, the reactions of 3-hydroxybenzoylhydrazine (7) with acetone, cyclohexanone, and benzalde-hyde gave the Schiffs bases (8)–(10).

Journal of Heterocyclic Chemistry | 1973

Studies on the syntheses of heteroeyelie compounds. Part DV. Cyclization products of i-substituted 2-benzyl-1,2,5,6-tetrahydropyridines [syntheses of analgesics. Part XXXV]†‡

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Nagatoshi Wagatsuma; T. Uryu; Hideo Sugi

ChemInform | 1982

STUDIES ON THE SYNTHESES OF HETEROCYCLIC COMPOUNDS. CMLV. STUDIES ON THE SYNTHESES OF ANALGESICS. LV. SYNTHESIS OF 4A-(3-SUBSTITUTED PHENYL)1,2-DISUBSTITUTED DECAHYDROCINNOLINE DERIVATIVES. 2

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Nagatoshi Wagatsuma; T. Kohagizawa; T. Uryu; T. Nakamura

ChemInform | 1980

STUDIES ON THE SYNTHESES OF DRUGS ACTING ON CIRCULATORY SYSTEM. I. SYNTHESES OF 1-SUBSTITUTED 3,7-DIMETHYLXANTHINE (STUDIES ON THE SYNTHESES OF HETEROCYCLIC COMPOUNDS. PART DCCCXXIV)

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Nagatoshi Wagatsuma; T. Uryu; Hitoshi Inoue

ChemInform | 1977

STUDIES ON THE SYNTHESES OF HETEROCYCLIC COMPOUNDS. PART DCLXIX. STUDIES ON THE SYNTHESES OF ANALGESICS. XLI. OPTICAL RESOLUTION OF (.+-.)-N-CYCLOPROPYLMETHYL-3-HYDROXY-9-AZAMORPHINAN

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Nagatoshi Wagatsuma; O. Kusama; T. Uryu

ChemInform | 1976

ANALGESIC N-CYCLOPROPYLMETHYL-3-HYDROXY-9-AZAMORPHINAN

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Nagatoshi Wagatsuma; O. Kusama; T. Uryu

ChemInform | 1976

STUDIES ON THE SYNTHESES OF HETEROCYCLIC COMPOUNDS. DCLII. SYNTHESIS OF 1,2,3,4,4A,10B-HEXAHYDRO-6H-DIBENZO(B,D)PYRAN DERIVATIVES

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Nagatoshi Wagatsuma; O. Kusama; T. Uryu; T. Nakamura; T. Kohagizawa; Seiji Haga

ChemInform | 1976

STUDIES ON THE SYNTHESES OF HETEROCYCLIC COMPOUNDS. DCLXVIII. STUDIES ON THE SYNTHESES OF ANALGESICS. XLVI. AN ABNORMAL HOFMANN DEGRADATION OF N-(4-HYDROXYBENZYL)-3-BENZAZOCINIUM HALIDES

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Kikuo Wakisaka; T. Uryu; Hideo Sugi; S. Saitoh; Haruhide Ishimaru; Seiji Haga

ChemInform | 1974

SYNTHESES OF ANALGESICS PART 39, SYNTHESIS OF 1,2,3,4,5,6-HEXAHYDRO-8-HYDROXY-2,6-METHANO-3,6,11-TRIMETHYL-2,3-BENZO(G)DIAZOCINE AND 1,2,3,4,5,10,11,12-OCTAHYDRO-7-HYDROXY-1,5-DIMETHYLPYRIDAZINO(2,3-B)ISOQUINOLINE (SYNTHESES OF HETERO

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Kikuo Wakisaka; Nagatoshi Wagatsuma; O. Kusama; T. Uryu

ChemInform | 1974

SYNTHESES OF ANALGESICS PART 38, REACTIONS OF 2-(3-SUBSTITUTED PHENYL)CYCLOHEXANONE WITH ETHYL ALPHA-HALOACETATE (STUDIES ON THE SYNTHESES OF HETEROCYCLIC COMPOUNDS PART 532)

Tetsuji Kametani; Kazuo Kigasawa; Mineharu Hiiragi; Nagatoshi Wagatsuma; T. Uryu

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Kazuo Kigasawa

Tohoku University

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Mineharu Hiiragi

Tohoku University

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Tetsuji Kametani

Hoshi University

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Nagatoshi Wagatsuma

Tohoku University

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Hideo Sugi

Tohoku University

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Kikuo Wakisaka

Tohoku University

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O. Kusama

Tohoku University

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Seiji Haga

Tohoku University

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Haruhide Ishimaru

Tohoku University

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Fumio Satoh

Tohoku University

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