Palladium-Catalyzed [3,3]-Rearrangement for the Facile Synthesis of Allenamides
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