N-[3-(3-Dimethylaminoacryloyl)phenyl]acetamide → HCID 20280389, compound

Participants

Reaction Steps

A solution of 1.87 g of 3-amino-4-benzoylpyrazole and 2.32 g of N-[3-[3-(dimethylamino)-1-oxo-2-propenyl]phenyl]acetamide (Example 168) in 50 ml of glacial acetic acid was refluxed for 8 hours. The reaction mixture was evaporated to dryness and a saturated sodium bicarbonate solution was added along with 400 ml of methylene chloride. The solid that separated was recovered by filtration and was the desired compound (2.57 g, mp 205°-207° C.). The methylene chloride solution afforded more compound (0.73 g, mp 205°-207° C.).

Provenance & Evidence