Studies On Radical Cation Salt Induced Aerobic Aromatization

. Radical cation salt, tris(4-bromophenyl)aminium hexachloroantimonate, inducedaerobic aromotization of Hantzch1,4-dihydropyridines and N-cinnamylaniline werestudied, providing a series of pyridine and quinoline derivatives. It consists of threeparts: the first part is a concise introduction of radical cation chemistry and a reviewon synthetic applications of radical cation reaction initiated by a variety of approaches.The second part describes the aerobic aromatization of Hantzch1,4-dihydropyridinesunder radical cation salt induced conditions. Finally, our research works on theaerobic oxidation of N-cinnamylaniline promopted by radical cation salt, providing aseries of quinoline derivatives.The main contents are as follows:1. Aromatization of Hantzch1,4-dihydropyridines was achieved under radicalcation salt, tris(4-bromophenyl)aminium hexachloroantimonate (TBPA+.), inducedconditions, in which TBPA+.acts as an efficient catalyst to prompt the aerobicoxidation of1,4-DHPs in a catalytic way.2. In this section, radical cation catalyzed reaction of N-cinnamylanilines wasexplored. We found that the radical annulation of N-cinnamylanilines can be used tobuild quinoline skeleton under aerobic conditions.