1 25 ml of hexamethylphosphoramide is added and the mixture stirred at ambient temperature for 16 hrs acidification with cold dilute hydrochloric acid is followed by extraction with ethyl acetate the organic extract is then washed with water brine and dried over magnesium sulfate concentration at reduced pressure yields a residue 0 76 g which is chromatographed on a 100 g column of silica gel packed with 10 methanol in methylene chloride eluting with 7 5 methanol in methylene chloride yields crude product contaminated with dimethylformamide which is then diluted with ether washed with cold dilute hydrochloric acid water and saturated brine drying over magnesium sulfate and concentrating under reduced pressure yields a residue of 0 57 g of pure title product silica gel tlc r f is 0 46 in 7 5 methanol in methylene chloride nmr absorptions are observed at 5 42 5 65 4 78 4 98 3 72 3 88 3 36 and 3 26 u03b4 following the procedure of example 2 but employing the respective p substituted phenols corresponding to the various p substituted phenyl esters described above there are prepared the various 9 deoxy 9 methylene 16 16 dimethyl pg 2 p substituted phenyl esters described herein further employing each of the various 9 deoxy 9 methylene pg 2 compounds described herein or described in u s pat no 4 060 534 in place of 9 deoxy 9 methylene 16 16 dimethyl pgf 2 and employing each of the various p substituted phenols described above there are prepared each of the various 9 deoxy 9 methylene pgf type p substituted phenyl esters described herein following the.