5,2-dimethoxyarylophenones, quinolones and novel quinones are prepared

Abstract

This work involves the preparation of p-methoxyanisol from methylation of hydroquinone with dimethylsulphate in basic media. Condensation of p-methoxy anisol with benzoic acid or substituted acids in the presence of polyphosphoric acid lead to formation of 2,5-dimethoxybenzophenone and its analogues. Treatment of later compounds that dissolved in methylene chloride with tribromoboron give the corresponded quinols. Moreover, oxidation of quinols with active silver oxide, quinones are obtained.
The synthesized compounds were verified using some spectral data (IR, UV) and C.H.N. analysis.