Iodocarbamation of <i>N</i>
-Homopropargyl Carbamates: Mild and Stereoselective Entry to Functionalized Oxazinan-2-ones
作者:Pierre Quinodoz、Alexandre Quelhas、Karen Wright、Bruno Drouillat、Jérôme Marrot、François Couty
DOI:10.1002/ejoc.201700231
日期:2017.5.10
An efficient and general iodocarbamation of homopropargyl N-Cbz carbamates was developed using iodine as the electrophilic agent. This regio- and stereoselective cyclization yields (E)-6-iodomethylen-oxazinan-2-ones, which can be further transformed through palladium cross-coupling reactions followed by hydrogenation, to produce 1,3-oxazinan-2-ones.
使用碘作为亲电子试剂,开发了高效率的普通炔丙基N-Cbz氨基甲酸酯碘代氨基甲酸酯化方法。该区域和立体选择性环化产生(E)-6-碘亚甲基-恶二酮-2-酮,其可以通过钯交叉偶联反应随后氢化而进一步转化以产生1,3-恶二酮-2-酮。