Hydrochloric Acid → HCID 86685706, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-chloro-4-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-benzoic acid butyl ester (Example I16) (0.48 g) in THF (16 ml) and water (8 ml) was added lithium hydroxide monohydrate (103 mg). The reaction mixture was stirred at 50° C. for 20 hours. The reaction mixture was cooled to ambient temperature and diluted with water, acidified by addition of aqueous hydrochloric acid (1M) and extracted twice with ethyl acetate. The combined organic phases were washed with brine, dried over sodium sulfate and concentrated to give 2-chloro-4-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-benzoic acid (459 mg). 1H-NMR (400 MHz, CDCl3): 8.15-7.40 (m, 6H), 4.95 (d, 1H), 4.30 (d, 1H), 3.85 (d, 1H), 3.35 (d, 1H) ppm.

Provenance & Evidence