Dimethylformamide dimethyl acetal → Methyl 4-[3-(dimethylamino)prop-2-enoyl]benzoate

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl 4-acetylbenzoate (25 g, 140 mmol) and N,N-dimethylformamide dimethyl acetal (100 mL) was heated to reflux for 2 days, diluted with MeOH (100 mL) and cooled to 0° C. The precipitate was collected by filtration and washed with MeOH to give (E)-methyl 4-(3-(dimethylamino)acryloyl)benzoate as a brown solid (27.65 g, 84% yield). MS (ES+) m/z: 234 (M+H); LC retention time: 2.91 min (analytical HPLC Method A).

Provenance & Evidence