Dimethylformamide → 4-Fluorophenylacetyl chloride

Participants

Reaction Conditions

Reaction Steps

A solution of 150 g (0.974 mol) of 4-fluorophenylacetic acid an 1 mL of N,N-dimethylformamide in 500 mL of toluene at 40° C. was treated with 20 mL of thionyl chloride and heated to 40° C. An additional 61.2 mL of thionyl chloride was added dropwise over 1.5 hours. After the addition, the solution was heated at 50° C. for 1 hour, the solvent was removed in vacuo and the residual oil was distilled at reduced pressure (1.5 mmHg) to afford 150.4 g (89.5%) of the title compound, bp =68-70° C.

Provenance & Evidence