To this end 2, 3-dichloroquinoxaline (I) 4 and 2-chloro-3-methylquinoxaline (11) 6 were prepared and used as primary starting materials for condensation with appropriate alkylenimines. The two active chlorines of I permitted the introduction of either one such substituent (111-VII) or two (similar or different) substituents (XII-XXV). Data are assembled in Table I. In addition a quinoxaline carrying a nitrogenmustard function was prepared by ...
