Trifluoroacetic acid → Trifluoroacetic acid

Participants

Reaction Steps

To a solution of 36 (950 mg, 3.6 mmol) in 10 mL dichoromethane, trifloroacetic acid (5 mL) was added. The reaction mixture was stirred for 2 h. At this point, LC-MS showed the reaction to be complete. The reaction flask was concentrated to remove the solvent and most of the TFA. The residue was then dried further in a high vacuum oven over 24 h to give the title compound 37 as TFA salt.

Provenance & Evidence