NUCLEOPHILIC RADICAL SUBSTITUTION OF POLYCHLOROAZINES

Polychloroazines (1-6) are susceptible to homolytic chlorine substitut ion by alkyl radicals. In general, the chlorine at the ortho-position to the ring nitrogen is readily replaced by an alkyl radical like adam antyl and tert-butyl. However, the chlorine at the C2-position of pyri midine did not show any sign of the radical substitution. The reactivi ty decreases in the order of adamantyl, tert-butyl, and isopropyl radi cals.