作者:Amy M. Danowitz、Christopher E. Taylor、Tamar M. Shrikian、Anna K. Mapp
DOI:10.1021/ol1007845
日期:2010.6.4
described. A propargylic alcohol, a chlorophosphite, and Cbz-azide are combined to provide a propargylic phosphorimidate that, in the presence of catalytic palladium(II), rearranges to an allenamide. By varying the substitution pattern on the propargylic alcohol, mono-, di-, and trisubstituted allenamides can be accessed in good yields. Additionally, the use of an enantiomerically enriched propargylic alcohol
描述了一种[3,3]重排用于手性烯丙酰胺的简便构建。将炔丙醇,亚氯酸亚磷酸酯和叠氮化Cbz合并以提供炔丙基亚磷酸酯,在催化性钯(II)存在下,重排成烯丙酰胺。通过改变炔丙醇上的取代方式,可以高收率获得单,二和三取代的烯丙酰胺。另外,使用对映体富集的炔丙醇能够制备立体化学定义的烯丙酰胺。