Trifluoroacetic acid → (2E)-3-[5-(benzyloxycarbonyl)furan-2-yl]-2-propenoic acid

Beteiligte Stoffe

Reaktionsschritte

To 5-(2-tert-butoxycarbonylethenyl)furan-2-carboxylic acid benzyl ester (0.15 g, 0.46 mmol) obtained in Example 41, step 2 was added trifluoroacetic acid (3 ml), and the mixture was stirred for 30 minutes. The solvent was evaporated under reduced pressure to give the title compound.

Herkunft & Nachweise