Fe(0)催化三氯乙酸烯丙酯的环化反应研究

Fe(0)-Catalyzed Radical Cyclization Reaction of Allyl Trichloroacetate

通过对Fe(0 )催化烯烃自由基环化反应的研究 ,发现以Fe(0 )为催化剂催化三氯乙酸烯丙酯分子内自由基环化反应可以高化学选择性得到五元环内酯产物 ,反应中不需加入配体 .和大多数自由基反应一样 ,反应温度与催化剂用量对该反应的转化率和产率有着很大的影响 .

In the absence of ligand, α,α′-dichloro-β-chloromethyl-γ-lactone was obtained by the Fe(0)-catalyzed radical cyclization reaction of allyl trichloroacetate. The reaction temperature and the catalyst loading had significant influences on the conversion of reaction and yield of the product.