Trifluoroacetic anhydride → HCID 54333950, compound

Participants

Reaction Steps

Trifluoroacetic anhydride (5 ml) was added to (R)-N-(2-chloro-4-methylsulphinyl-phenyl)-2-hydroxy-2-methyl-3,3,3-trifluoropropanamide (Example 92) (0.188 g). The mixture was stirred and heated under reflux for 45 minutes then cooled and evaporated to dryness. A mixture of triethylamine (5 ml) and methanol (5 ml) was added to the residue. This mixture was stirred for a further 45 minutes then evaporated to dryness. The residue was dissolved in chloroform (50 ml), washed with saturated aqueous ammonium chloride solution (50 ml), dried and concentrated by evaporation to give the title compound (0.177 g) as a gum which was used without purification. MS (ESP−): 298.

Provenance & Evidence