Synthesis and Properties of 5-Azaullazines

5-Azaullazines, indolizino[6,5,4,3-ija][1,5]naphthyridines,and their benzo-fused analogues were prepared in three steps by combinationof Pd catalyzed cross-coupling reactions with Bronsted acid mediatedcycloisomerisations. The reaction tolerates various substitution patternsand functional groups and proceeds in high yields. Optical and electrochemicalproperties of selected products were studied experimentally and byDFT calculations.

Automated summary

5-Azaullazines, indolizino[6,5,4,3-ija][1,5]naphthyridines, and their benzo-fused analogues were synthesized in three steps using Pd catalyzed cross-coupling reactions and Bronsted acid mediated cycloisomerisations. The reaction exhibited tolerance towards various substitution patterns and functional groups, resulting in high yields. The optical and electrochemical properties of selected products were experimentally studied and also characterized by DFT calculations.