[OH-].[Na+].[CH3:3][O:4][C:5]1[CH:10]=[C:9]([CH:11]([Cl:16])[C:12](Cl)([Cl:14])[Cl:13])[CH:8]=[C:7]([CH:17]([Cl:22])[C:18](Cl)([Cl:20])[Cl:19])[CH:6]=1>CO>[CH3:3][O:4][C:5]1[CH:6]=[C:7]([C:17]([Cl:22])=[C:18]([Cl:19])[Cl:20])[CH:8]=[C:9]([C:11]([Cl:16])=[C:12]([Cl:13])[Cl:14])[CH:10]=1To a magnetically stirred solution of 30 mg (0.73 mmol) of sodium hydroxide in 0.2 mL methanol was slowly added a solution of 0.122 g (0.28 mmol) of the product of Step B in 0.1 mL methanol. A white precipitate was deposited and the reaction mixture was then stirred overnight. The reaction mixture was then evaporated in vacuo and the residue was purified on a silica gel flash chromatography column eluted with hexane. Evaporation of the purified fractions afforded the title compound.
Loading…