A highly selective mono-C-allylation of pentaethyl diethylenetriaminepentaacetate was achieved with allyl bromide and potassium carbonate via a newly developed elaborate procedure based on Stevens rearrangement. It is contrastive that the conservative one-pot procedure gave a complicated mixture.
通过基于Stevens重排的新开发精细程序,成功实现了对五乙酰
二乙烯三胺五
乙酸酯的高度选择性单C-烯丙基化,采用了烯丙基
溴和
碳酸钾。值得注意的是,传统的一锅法则产生了复杂的混合物。