相转移条件下微量钯催化的(2E)-不饱和酯的合成

A Micro-Palladium Catalyzed Synthesis of (2E)-Unsaturated Esters under Phase-Transfer Condition

在固液相转移条件下,以微量的二苯腈二氯化钯为催化剂,碘代芳烃能与具有末端双键的αβ-不 饱和酯发生偶联反应.反应具有良好的立体选择性,产率中等至良好,其中α,β-不饱和丁酯的偶联产率较高.

Aryliodides with α, β-unsaturated esters possessed of end double bound can carry out the coupling reaction and give the corresponding (2E)-Unsaturated esters using a micro amount of bis (benzonitrile) dichloropalladium as catalyst under solid-liquid phase-transfer conditions. This method has good stere-oselectivity and moderate to good yields.