O. Kintzel et Ad. Schluter, ANTHRACENOL[2,3-C 6,7-C']DIFURAN, A NEW MONOMER FOR DIELS-ALDER POLYADDITION REACTIONS/, Acta polymerica, 48(5-6), 1997, pp. 212-214
The anthracenedifuran precursor 7 was obtained in a short sequence fro
m its lower homologue 1. On thermal treatment, 7 generates the highly
Diels-Alder (DA)-active anthracenodifuran ''8''. Its bisdiene characte
r is proved by trapping with diquinone 9, which gives the [9]cyclacene
derivative 10 and oligomeric material.