S. Bozzini et al., SYNTHESIS OF ETRAHYDRO-1H-NAPHTH[1,2-D]-IMIDAZOLE-2,4,5-TRIONES AND TETRAHYDRO-1H-NAPHTH[2,3-D]IMIDAZOLE-2,4,9-TRIONES, Journal of heterocyclic chemistry, 33(4), 1996, pp. 1217-1221
Tricyclic compounds with an imidazolinone ring fused to 1,2- and 1,4-n
aphtoquinones were synthesized by a reaction of 4-amino-1,2-naphthoqui
none and 2-amino-1,4-naphthoquinone with electrophilic symmetric and n
on symmetric diazenes.