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Direct fusion of a triazine to a pyrazine ring. Synthesis of derivatives of [1,2,4]triazino[5,6-b]quinoxaline

✍ Scribed by V. N. Charushin; V. G. Baklykov; O. N. Chupakhin; L. M. Naumova


Book ID
112349028
Publisher
Springer US
Year
1984
Tongue
English
Weight
166 KB
Volume
20
Category
Article
ISSN
0009-3122

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## Abstract The reaction of 6‐chloro‐2‐(1‐methylhydrazino)quinoxaline 4‐oxide 5 with a 2‐fold molar amount of ethyl chloroglyoxalate gave ethyl 8‐chloro‐4‐methyl‐4__H__‐1,3,4‐oxadiazino[5,6‐__b__]quinoxaline‐2‐carboxylate 6, whose reaction with hydrazine hydrate afforded the C~2~‐hydrazinocarbonyl