Toluene → HCID 86623338, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of 1-(4-fluoro-2-(trifluoromethyl)phenyl]-2,5-dimethyl-1H-pyrrole-3-carboxylic acid (0.65 g, 2.16 mmol) in anhyd toluene (5.0 mL) cooled to 0-3° C. were added thionyl chloride (0.25 mL) and DMF (20 μL). The reaction mixture was allowed to warm to room temperature where it remained for 3 h and then was concentrated in vacuo. The residue was evaporated twice from 5 mL of toluene to remove thionyl chloride and then was triturated in 3 mL of hexanes. The solids were removed by filtration and the filtrate was concentrated under reduced pressure and dried under high vacuum to afford the title compound (0.44 g, 64%) as a pale brown solid; 1H NMR (CDCl3): δ 7.59 (dd, J=8, 3 Hz, 1H), 7.44 (m, 1H), 7.27 (dd, J=5, 8 Hz, 1H), 6.51 (s, 1H), 2.17 (s, 3H), 1.89 (s, 3H); MS (ESI) m/z 320 [M+H]+.

Provenance & Evidence