Allyl dibromoacetate, allyl α-bromopropionate, and allyl phenylbromoacetate undergo cyclization in benzene in the presence of increased concentration of Fe(CO)5—DMF as the initiating system to give the corresponding bromo-substituted butyrolactones.
二
溴乙酸烯丙酯、α-
溴丙酸烯丙酯和苯基
溴乙酸烯丙酯在浓度增加的 Fe(CO)5-
DMF 作为引发体系的存在下在苯中发生环化反应,得到相应的
溴代丁内酯。