Abstract A two-step procedure has been developed for the synthesis of 3-alkylquinoxalin-2 (1 H)-ones from o-phenylenediamine and ethyl 2-oxoalkanoates prepared by the Grignard reaction of diethyl oxalate with alkyl bromides. Analogous reaction with α, ω-dibromoalkanes instead of alkyl bromides leads to the formation of 3, 3′-(alkane-α, ω-diyl) di [quinoxalin-2 (1 H)-ones].
