of absolute ethanol at 0 u00b0 c and the solution was allowed to warm to ambient temperature overnight the solution was filtered free of sodium chloride through a diatomaceous earth pad and the filtrate was evaporated to an oil which crystallized on treatment with 500 ml of ethyl ether the resulting white solid was collected by vacuum filtration and dried under vacuum to give 15 g 51 yield of a white solid represented by the formula str3 ir kbr cm 1 1738 c u2550 o uv methyl cell 247 nm u03b5 3 800 nmr cdcl 3 tms 4 4 s 2h 4 2 q 2h j hh 6 hz 3 2 s 2h 2 05 s 3h and 1 25 t 3h j hh 6 hz compound i 5 g 2 7 u00d7 10 2 mol sodium carbonate 6 7 g 5 4 u00d7 10 2 mol and 8 4 g 2 7 u00d7 10 2 mol of a compound represented by the formula str4 were combined in a mixture of 300 ml of acetone and 100 ml of water and after one hour the reaction mixture was poured with stirring onto a mixture of 100 ml of hydrochloric acid and 400 g of ice the resulting orange solid was collected by filtration the orange solid was recrystallized from acetic acid to give 12 g 89 yield of a red crystalline product represented by the formula str5 ir kbr cm 1 3700 1755 1670 and 1587 uv methyl cell 497 nm u03b5 23 600 nmr cdcl 3 tms 8 7 7 4 m 10h 4 6 s 2h 4 2 q 2h j hh 6 hz 2 3 s 3h and 1 25 t 3h j hh 6 hz c 24 h 22 n 4.