was partitioned between ethyl acetate and water the aqueous layer was further extracted twice with ethyl acetate the combined organic extracts were dried over magnesium sulfate and after filtration the solvent was removed under reduced pressure the residue was then chromatographed over silica gel using 10 methylene chloride hexane as eluent to afford 1 66 g of the title compound which was homogeneous by thin layer chromatography 5 by volume of ethyl acetate hexane on silica gel plates 1 h nmr cdcl 3 u03b47 73 6 90 m 7h 4 03 t 2h 3 50 t 2h and 2 22 quintet 2h the title compound was prepared by the method of example 4 using 1 naphthol 1 80 g 12 5 mmol in place of 2 naphthol after chromatography there was obtained 0 80 g of the title compound which was homogeneous by thin layer chromatography 10 by volume of toluene hexane on silica gel plates 1 h nmr cdcl 3 u03b48 40 6 77 m 7h 4 22 t 2h 3 65 t 2h and 2 38 quintet 2h a mixture of 3 26 g 20 mmol of 3 4 dichlorophenol 20 2 g 100 mmol of 1 3 dibromopropane 6 80 g 20 mmol of tetra n butyl ammonium hydrogen sulfate 40 ml of 1n sodium hydroxide and 40 ml of methylene chloride was stirred rapidly at reflux after 2 hours the mixture was allowed to cool and the layers were separated the organic layer was washed with.