Acetic Acid → HCID 86644230, compound

Participants

Reaction Steps

To a solution of 300 of ethyl 4-chloroacetoacetate in 519 ml of toluene and 200 ml of ethanol are added 20.8 ml of acetic acid. At 10° C.-30° C., with cooling, 188.7 g of a 33% methylamine solution in ethanol are added dropwise. Subsequently, the mixture is stirred at room temperature for 8 h and the solvent is removed under reduced pressure at temperatures of down to 35° C. 328 g of ethyl 4-chloro-3-(methylamino)but-2-enecarboxylate are obtained in a purity of 91% (this corresponds to 92% yield).

Provenance & Evidence