Trifluoroacetic acid → 4'-Trifluoromethyl-biphenyl-2-carboxylic acid (1,2,3,4tetrahydroisoquinolin-6-yl)-amide

Participants

Reaction Steps

A total of 4 g (8 mmol) of 6-[(4'-trifluoromethyl-biphenyl-2-carbonyl)-amino]3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester and 6 mL (78 mmol) of trifluoroacetic acid were mixed in 60 mL of methylene chloride for 5 hrs. Methylene chloride (40 mL) was added and the organic layer was washed with 3×50 mL of saturated sodium bicarbonate followed by brine. The organic layer was dried over odium sulfate and concentrated to yield 3.1 g of solid.

Provenance & Evidence