Abstract: In this paper the synthesis of the N- ( α, β-dialkyl-4-chlorocinnamyl)-src-butylaminc derivatives was reported. The products of Rcformatsky reactions of p-chlorophenyl-alkyl ketones with ethyl α-bromopropylacetate or ethyl α-bromobutyl-acetate were dehydrated in the preserco of iodine. In most cases, the derivatives of β,γ-unsaturated acids were only. With potassium tcrtiarybutylalcohol as catalyst and DMSOas solvent, they can rearrange to N- (α ,β-dialkyl-4-chlorocinnamyl)-sec-butylamine derivatives.