4,5-Substituted Pyridazines. VII. Synthesis and Acylation of 3,4-Dichloro-5-aminopyridazine.

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概要

• 論文の詳細を見る

• 1) The structures of 3,4-dichloro-5-aminopyridazine (VIII), m.p. 178,° and 5,6-dichloro-3-pyridazinol (III), m.p. 203〜204°, were established. (VIII) was obtained from 4-chloro-5-amino-3-pyridazinol (VI) and was identical with the sample derived from 3,4,5-trichloropyridazine ; (IV) was characterized as a convenient intermediate for preparing 5-amino-3-pyridazinol (V) and 3,6-dichloro-4-aminopyridazine (II). 2) Preparations of 5-amino-6-chloro-3-pyridazinol (IV), 3-chloro-4-hydroxy-5-aminopyridazine (XI), and 2-phenyl-7-chloro-oxazolo [4,5-d] pyridazine (XII) obtained from (VIII) and (XI) were reported.

• 公益社団法人日本薬学会の論文
• 1958-12-15

著者

• 倉石 典

  Faculty of Liberal Arts Nagasaki University

• 倉石 典

  Pharmaceutical Faculty, University of Nagasaki

関連論文

• Studies on the Pyridazine Derivatives. XVII. Structural Studies on the Product of 3-Hydrazino-4-aminopyridazine with Formic Acid (A Novel Ring Isomerization)
• 4,5-Substituted Pyridazines. III. Oxidation and Solvolysis of 4-Methyl-3,6-dichloropyridazine.
• 4,5置換ピリダチン類(第1報)
• 4-Aminopyridazineの合成
• 4,5-Disubstituted Pyridazines. VIII. Hydrolysis of 2-Phenyl-6-chlorooxazolo[5,4-c]pyridazine
• 4,5-Substituted Pyridazines. VII. Synthesis and Acylation of 3,4-Dichloro-5-aminopyridazine.
• 4,5-Substituted Pyridazines. VI. Infrared Absorption and Structure of 4-and 5-Carboxy-6-chloro-3-pyridazinol.
• 4,5-Substituted Pyridazines. V. Acylation of 4-Amino-3,6-dichloropyridazine.
• 4,5-Substituted Pyridazines. IV. The Effect of Some Substituents at the 4-Position on the Ultraviolet Absorption Spectrum of 3,6-Dichloropyridazine.

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