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A convenient synthesis of novel pyridazino[3,4-b]quinoxaline and pyrazolo[3,4-b]quinoxaline utilizing 1,3-dipolar cycloaddition reaction

✍ Scribed by Ho Sik Kim; Yoshihisa Kurasawa; Atsushi Takada


Book ID
112129404
Publisher
Journal of Heterocyclic Chemistry
Year
1989
Tongue
English
Weight
129 KB
Volume
26
Category
Article
ISSN
0022-152X

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πŸ“œ SIMILAR VOLUMES


Synthesis of novel pyridazino[3,4-b]quin
✍ Ho Sik Kim; Eun Kyoung Kim; Sung Sik Kim; Yong Tae Park; Young Seuk Hong; Yoshih πŸ“‚ Article πŸ“… 1997 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 225 KB

## Abstract The pyridazino[3,4‐__b__]quinoxaline 12 was synthesized by the cyclization of the α‐arylhydrazonoacyl‐hydrazide 11. The reaction of compound 12 with phosphoryl chloride gave pyridazino[3,4‐__b__]quinoxaline 13, whose reactions with sodium azide or cyclic secondary amines provided pyrida

Quinoxalines X. a new and convenient syn
✍ Gerhard Sarodnick; Torsten Linker πŸ“‚ Article πŸ“… 2001 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 87 KB

## Abstract Dedicated to Professor Gerhard Kempter on the occasion of his 70^th^ birthday Quinoxaline‐2‐aldoximes and ‐ketoximes (**6**) react with hydrazine, alkylhydrazines or arylhydrazines under acidic conditions to afford l__H__‐pyrazolo[3,4‐__b__]quinoxalines (flavazoles) (**1**). Since the o