Diazomethane → HCID 21445133, compound

Participants

Reaction Conditions

Reaction Steps

52.9 g of α-chloroacetoacetanilide in 500 ml of methylene chloride was held at 0° C for 4 hours and then 725 ml of methylene chloride solution titrating 17.4 g/l of diazomethane were added. The mixture was stirred for 16 hours at 0° C and then 1 hour at 20° C and was concentrated to dryness under reduced pressure. The residue was added to isopropyl ether and the precipitate formed was recovered by vacuum filtration and was crystallized from isopropyl ether to obtain 12 g of 2-chloro-3-methoxy-crotonanilide melting at 100° C.

Provenance & Evidence