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

J Armand, L Boulares, K Chekir…

Index: Armand, Joseph; Boulares, Line; Chekir, Khaled; Bellec, Christian Canadian Journal of Chemistry, 1981 , vol. 59, p. 3237 - 3240

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Citation Number: 13

Abstract

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 3 b and 4 b. 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 4 b and 7. ...