Vn. Nemykin et al., Diels-Alder reaction of tribenzo[b,g,l]thiopheno[3,4-q]porphyrazine as a new path for porphyrazine core modification, CHEM LETT, (11), 2000, pp. 1236-1237
Diels-Alder reaction between tribenzo[b,g,l]thiopheno[3,4-q]porphyrazine an
d dimethyl acetylenedicarboxylate at ca. 200 degreesC produced a substitute
d tribenzo[b,g,l]porphyrazine and 3:1 unsymmetrically substituted phthalocy
anine, which were characterized by UV-VIS, MCD, NMR, and mass spectroscopie
s.