ChemInform Abstract: Chemistry of Allyl Systems. Part 5. Ketopropenylation of Secondary Amines with 2,3‐Dihalo‐1‐propenylketones.

Abstract

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Synthesis and properties of 3-alkyl(aryl)-5-(dimethylaminomethyl)pyrazoles

“…By treatment of 3,4-dichlorobut-2-en-1-ones with dimethylamine according to the procedure described in [10] we synthesized 3,4-bis(dimethylamino)but-2-en-1-ones 1a-1d which were brought into reaction with hydrazine hydrate. The physical constants of ketones 1a-1d were identical to those reported in [10].…”