The additions of pyrrole and indole upon N-acetyl-and N-alkylpyridinium, quinolinium or isoquinolinium salts are reported. The resulting dihydroazines are either isolated or oxidised to the more stable aromatic compounds. The use of a two-phase system was studied and slight enantiomeric excesses were observed when chiral catalysts were used. The separation of enantiomers of some 4-indolyl-1, 4-dihydropyridines was achieved by HPLC ...