Asymmetric Hydrogenation of Protected Allylic Amines
作者:Dietrich P. Steinhuebel、Shane W. Krska、Anthony Alorati、Jenny M. Baxter、Kevin Belyk、Brian Bishop、Michael Palucki、Yongkui Sun、Ian W. Davies
DOI:10.1021/ol101804e
日期:2010.9.17
A general method for the enantioselective hydrogenation of protectedallylicamine derivatives is described. This procedure relies on the generation of a cationic ruthenium complex with the axially chiral ligand (−)-TMBTP. The utility is highlighted by the highly enantioselective hydrogenation of a diene substrate that can then be elaborated to prepare Telcagepant, a compound currently in Phase III