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Quinoxalin-3-one 1-oxides

Similar reactions are found for /V-oxides in the diazine series. Thus, 4H-quinoxalin-3-one 1-oxides 253 (R = H, Me) and benzyne give the hydroxy-phenyl derivatives 254 (95%).122 Hydroxyphenyl derivatives 257 were only... [Pg.227]

Quinoxalin-4-ones, methylation of, 255 Quinoxalin-3-one 1-oxides, 218, 238-239 Quinoxalin-3-one-2-carboxylic acid, 205, 207... [Pg.235]

See also in sourсe #XX -- [ Pg.218 , Pg.238 ]

See also in sourсe #XX -- [ Pg.218 , Pg.238 ]

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2- quinoxaline oxidation

4- one 1-oxide

One oxidation

Quinoxalin-2-ones

Quinoxaline di-N-oxides benzimidazol-2-ones