Dimethylformamide → HCID 20314466, compound

Participants

Reaction Steps

A solution of (±)-2-[4-(4-chlorophenyl)phenoxy]-3,3,3-trifluoro-2-methylpropionic acid (414 mg.), thionyl chloride (1.0 g.) and dimethylformamide (0.05 g.) in benzene (10 ml.) is heated under reflux for 1 hour. The solvent is evaporated in vacuo, and light petroleum (10 ml., b.p. 60°-80° C.) is added, and the mixture is re-evaporated. A further 10 ml. of light petroleum are added, and the mixture re-evaporated. The residue is dissolved in light petroleum, and the solution is filtered and evaporated to give (±)-2-[4-(4-chlorophenyl)phenoxy]-3,3,3-trifluoro-2-methylpropionyl chloride (401 mg.).

Provenance & Evidence