CONDENSATION OF o-PHENYLENE DIAMINE AND SUBSTITUTED ACROLEINS TO FORM MACROHETEROCYCLES

Article abstract of DOI:10.1007/BF00761992

The reaction of o-phenylene diamine with β-alkoxy-, β-dimethylamino-, and β-acetoxy-α-alkyl- or α-arylacroleins has been studied.A new synthesis of 7,16-diaryl<5,14>dihydrodibenzo-<5,9,14,18>tetraaza<14>annulenes was developed, and the syntheses of 5,14 dihydrodibenzo<5,9,14,18>teraaza<14>annulene and 7,16-dialkyl<5,14>dihydrodibenzo<5,9,14,18>tetraaza<14>annulenes were improved. 5,14-Dihydrodibenzo<5,9,14,18>tetraaza<14>annulenes were synthesized with various substituents in the benzene rings and at possitions 7 an 16.