Ammonia → 8-(p-Pentylcinnamoyl)amino-1,4-benzodioxane-2-acetamide

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Reaction Steps

8-(p-pentylcinnamoyl)amino-1,4-benzodioxane-2-acetic acid methyl ester (341 mg; synthesized in reference example 3) was dissolved into ethanol which was saturated with ammonia (20 ml). The solution was allowed to stand for 3 days at 100° C. The reaction mixture was concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane:ethyl acetate=2:1) to give the title compound (191 mg).

Provenance & Evidence