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Hiromu Nagashima

Josai University

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Featured researches published by Hiromu Nagashima.

ChemInform | 1984

SYNTHESIS OF PYRAZOLO(3,4‐D)PYRIDAZINES ‐ THIONATION FOLLOWED BY ALKYLATION OF PYRAZOLO(3,4‐D)PYRIDAZIN‐4(5H)‐ONE

Kenji Kaji; Hiromu Nagashima; K. Tabashi; Hirohisa Oda

Sulfuration par P 2 S 5 de dihydro-4,5 pyrazolo [3,4-d] pyridazones-4 et S-alkylation des thiones obtenues

Chemical & Pharmaceutical Bulletin | 1984

Synthesis of Pyridazino [4, 5-e] [1, 3, 4] thiadiazines and the Ring Contraction to Pyrazolo [3, 4-d] pyridazines through Extrusion of Sulfur

Kenji Kaji; Hiromu Nagashima; Sigeto Nagao; Keizo Tabashi; Hirohisa Oda

Journal of Heterocyclic Chemistry | 1985

3-Alkylthio and 3-Aminopyrazolo [3,4-d] pyridazines.Ring Contraction of Pyridazino [4,5-e] [1,3,4] thiadiazines via Extrusion of Sulfur.

Kenji Kaji; Hiromu Nagashima; Yasushi Ohhata; Keizo Tabashi; Hirohisa Oda

Chemical & Pharmaceutical Bulletin | 1978

Synthesis of Formamidines from Carbodiimides with Sodium Borohydride in Isopropanol

Kenji Kaji; Hiromitsu Matsubara; Hiromu Nagashima; Yasuo Kikugawa; Shunichi Yamada

Chemical & Pharmaceutical Bulletin | 1984

Conversion of Dipyridazino [4, 5-b : 4', 5'-e] [1, 4] thiazines into Dipyridazino [4, 5-b : 4', 5'-d] pyrroles through a Base-Induced Extrusion of Sulfur

Kenji Kaji; Hiromu Nagashima; Hirohisa Oda

Chemical & Pharmaceutical Bulletin | 1985

Synthesis of pyrazolo(3,4-d)pyridazines from 5-(1-methylhydrazino)pyridazines by means of the Vilsmeier-Haack reaction.

Kenji Kaji; Hiromu Nagashima; Yoshihiko Hirose; Hirohisa Oda

Journal of Heterocyclic Chemistry | 1984

The synthesis of pyrazolo[3,4‐d]pyridazines. Photochemical cyclization to pyrazolo[3,4‐d]pyridazin‐4(5H)‐ones with subsequent functionalization

Kenji Kaji; Hiromu Nagashima; Yusho Ohta; Keizo Tabashi; Hirohisa Oda

Tetrahedron Letters | 1969

The reaction of substituted ureas with sodium borohydride in pyridine

Yasuo Kikugawa; Shunichi Yamada; Hiromu Nagashima; Kenji Kaji

Chemical & Pharmaceutical Bulletin | 1988

SYNTHESIS OF (+)-7-ETHYL-5-METHYL-6, 8-DIOXABICYCLO[3, 2, 1]OCT-3-ENE, An OPTICALLY ACTIVE FORM OF THE HOUSE MOUSE PHEROMONE

Yukio Masaki; Ikuhiro Iwata; Toshihiro Imaeda; Hirohisa Oda; Hiromu Nagashima

Heterocycles | 1987

Demethylations of methoxypyridazines with amines

Hiromu Nagashima; Hirohisa Oda; Takahisa Hayakawa; Kenji Kaji

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Hirohisa Oda

Gifu Pharmaceutical University

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Kenji Kaji

Josai University

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Kenji Kaji

Josai University

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Yukio Masaki

Gifu Pharmaceutical University

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Ikuhiro Iwata

Gifu Pharmaceutical University

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Yasuo Kikugawa

Josai University

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Isao Mukai

Gifu Pharmaceutical University

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Keizo Tabashi

SANTEN PHARMACEUTICAL CO.

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Shunichi Yamada

University of Tokyo

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Toshihiro Imaeda

Gifu Pharmaceutical University

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