REGIOSELECTIVE SYNTHESIS OF 2,6-DICHLOROQUINOXALINE AND 2-CHLORO-6-IODOQUINOXALINE
Facile regioselective synthesis of 2,6-dichloroquinoxaline and 2-chloro-6-iodoquinoxaline is described.Electrophilic substitution reaction of 2(1H)-quinoxalinone with chloride and iodide ion in 95percent sulfuric acid occurred at 6-position exclusively.