Abstract:

Chlorination of xanthenone by thionyl chloride gave an intermediate 9,9-dichloroxanthene. The obtained chlorinated[JP] product is free of further isolation and purification and can react with o-cresol or 2,6-dimethylphenol for the preparation of two xthanenebiphenols including 9,9-bis(4-hydroxy-3-methylphenyl) xanthene and 9,9-bis(4-hydroxy-3,5-dimethylphenyl) xanthene with corresponding yields of 81% and 80.5%. Their structures were characterized by elemental analysis, FTIR, 1H NMR and 13C NMR spectra. The present method has advantages such as mild reaction conditions, convenient manipulation and good yield.

Key words: xanthenone, dichloroxanthene, methyl-substituted phenol, bis(hydroxymethylphenyl)xanthene, bis(hydroxydimethylphenyl)xanthene, synthesis