Chemical and electrochemical reduction of pyrazino[2,3-b]quinoxalines

Autor:	Joseph Armand, Christian Bellec, Khaled Chekir, Line Boulares
Rok vydání:	1981
Předmět:	Reduction (complexity) chemistry.chemical_compound Quinoxaline chemistry Organic Chemistry General Chemistry Electrochemistry Combinatorial chemistry Catalysis
Zdroj:	Canadian Journal of Chemistry. 59:3237-3240
ISSN:	1480-3291 0008-4042
DOI:	10.1139/v81-476
Popis:	The hydrogenation of 2,3-dimethylpyrazino[2,3-b]quinoxaline 1 and 2-phenylpyrazino[2,3-b]quinoxaline 2 leads to the corresponding 5,10-dihydroderivatives 3b and 4b. LiAlH4 reduction of 2, of 2,3-dimethyl-6,7-diphenylpyrazino[2,3-b]pyrazine 8 and 2,6,7-triphenylpyrazino[2,3-b]pyrazine 9 furnishes the corresponding 1,2,3,4-tetrahydroderivatives 7, 10, and 11. NaBH4 reduction of 2 leads to a mixture of 4b and 7. In hydroorganic medium 1 and 2 are electrochemically reduced to 3b and 4b with which they form a redox system.
Databáze:	OpenAIRE
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