The reaction of 2,6-djchloroquinoxaline(9) with m-chloroperbenzoic acid gave 2,6-dichloroquinoxaline 4-oxide(10), whose reaction with hydrazine hydrate provided 6-chloro-2-hydrazinoquinoxaline 4-oxide(11). Condensation of 6-chloro-2-hydrazinoquinoxali...
The reaction of 2,6-djchloroquinoxaline(9) with m-chloroperbenzoic acid gave 2,6-dichloroquinoxaline 4-oxide(10), whose reaction with hydrazine hydrate provided 6-chloro-2-hydrazinoquinoxaline 4-oxide(11). Condensation of 6-chloro-2-hydrazinoquinoxaline 4-onide with substituted benzaldehydes or ketones to yieldsubstituted benzaldehyde quinoxalin-2-ylhydrazones(12a~c) or ketone quinoxalin-2-ylhydrazones(12d~f)was investigated. The structures of the synthesized com-pounds were confirmed on the basis of ir, 1H-nmr and mass spectral data,