反应详情

Methyl (E) 6-(1,3-dihydro-6-(p-methoxybenzyloxymethyl)-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate (0.5 g) is dissolved in trifluoroacetic acid (10 ml) at 0° C. After 30 minutes the solvent is removed under vacuum and the residue is chromatographed on silica gel, eluting with hexane:ethyl acetate, to afford methyl (E) 6-(1,3-dihydro-6-hydroxymethyl-7-methyl-3-oxo-4-p-toluenesulfonyloxyisobenzofuran-5-yl)-4-methyl-4-hexenoate.

1. customAfter 30 minutes the solvent is removed under vacuum
2. customthe residue is chromatographed on silica gel
3. washeluting with hexane