Acetic Acid → HCID 69899072, compound

Participants

Reaction Conditions

Reaction Steps

1.45 g (2.97 mmol) of N-[2-(4-benzyloxy-3-methoxyphenyl)ethyl]-2-(4-chlorophenyl)-3-difluoromethoxyacrylamide, 751 mg (4.46 mmol) of 48% hydrobromic acid and 15 ml of acetic acid were mixed and stirred at 80° C. for 1.5 hours. Water was added to to the reaction mixture, which was followed by extracted with ethyl acetate twice, washed with saturated brine twice, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography (eluent, hexane:ethyl acetate=1:1) to give 880 mg of 2-(4-chlorophenyl)-3-difluoromethoxy-N-[2-(4-hydroxy-3-methoxyphenyl)ethyl]acrylamide (the present compound 1454).

Provenance & Evidence