to the following examples in a reactor equipped with a stirrer nitrogen introducing tube thermometer separator and cooling tube were placed 480 8 g 2 moles of 2 2 bis 4 hydroxy cyclohexyl propane 699 9 g 4 6 moles of methyl 4 hydroxybenzoate 19 84 g 0 08 mole of dibutyltin oxide and 100 ml of xylene the mixture was heated to 200 u00b0 c while distilling off the xylene and kept with stirring at that temperature for 18 hours giving 1 022 g of pale yellow semi crystalline product the crude product thus obtained was recrystallized from methylethyl ketone giving 583 g of white crystal having a melting point of 288 u00b0 290 u00b0 c yield was 60 7 the crystal was identified as 2 2 bis 4 4 39 hydroxybenzoyloxy cyclohexyl propane by elementary analysis ir absorption spectrum 1 h nmr spectrum and 13 c nmr spectrum u03b4ppm 0 74 6h s 1 14 4h m 1 38 6h m 1 74 4h d j 12 hz 2 06 4h d j 12 hz 4 72 2h m 6 82 4h d j 9 hz 7 78 4h d j 9 hz 10 29 2h s u03b4ppm 20 92 q 24 89 t 32 33 t 36 74 s 42 87 d.