Dramatic Changeover of Regioselectivity in the Reduction of Propargylic Phosphates by Palladium(0)/SmI2/Proton Source System
作者:Akihiro Yoshida、Koichi Mikami
DOI:10.1055/s-0032-1316827
日期:1997.12
Regiodivergent synthesis of allenes and acetylenes was established in the reduction of propargylic phosphates. The palladium(0)-catalyzed reduction of secondary propargylic phosphates with samarium(II) iodide gave allenes or acetylenes by tuning proton sources ( tert -butyl alcohol or dimethyl L-tartrate).