Trifluoroacetic acid → HCID 69515580, compound

Participants

Reaction Steps

Compound 19 (6.5 g, 15.67 mmol) is dissolved in methylene chloride (65 mL) and TFA is added (65 mL). After 16 hrs., the reaction is filtered and the solids are washed with ethyl ether. The solids are further dried in vacuo to provide 20 (4.06 g, 82%). 1H NMR (d6 DMSO): δ 7.88 (2H, br. s), 7.38 (2H, d, J=8.6 Hz), 7.32 (2H, d, J=8.6 Hz), 4.24 (2H, s), 3.69 (3H, s).

Provenance & Evidence