A strong-base-induced intramolecular cycloaddition reaction of homophthalic anhydrides has been examined as a method for preparing nonlinear polycyclic peri-hydroxy aromatic compounds.
KITA, YASUYUKI;OKUNAKA, RYUICHI;HONDA, TAKAO;SHINDO, MIKI;TANIGUCHI, MIYA+, J. ORG. CHEM., 56,(1991) N, C. 119-125