Studies of the selective O-alkylation and dealkylation of flavonoids. 10. Selective demethylation of 7-hydroxy-3,5,8-trimethoxyflavones with anhydrous aluminum halide in acetonitrile or ether. - Horie,T.; Tsukayama,M.; Kawamura,Y.; Seno,M. (J Org Chem, 1987)