Asymmetric Allylsilane Additions to Enantiopure N-Acylhydrazones with Dual Activation by Fluoride and In(OTf)3 We thank the National Science Foundation (Vermont EPSCoR) and the University of Vermont for generous support.
Asymmetric Allylsilane Additions to Enantiopure N-Acylhydrazones with Dual Activation by Fluoride and In(OTf)3 We thank the National Science Foundation (Vermont EPSCoR) and the University of Vermont for generous support.
Dual Activation in Asymmetric Allylsilane Addition to Chiral <i>N</i>-Acylhydrazones: Method Development, Mechanistic Studies, and Elaboration of Homoallylic Amine Adducts
作者:Gregory K. Friestad、Chandra Sekhar Korapala、Hui Ding
DOI:10.1021/jo052037d
日期:2006.1.1
CN bonds. In the presence of indium(III) trifluoromethanesulfonate [In(OTf)3], N-acylhydrazones undergo highly diastereoselective fluoride-initiated additions of allylsilanes (aza-Sakurai reaction). Mechanistic studies including control experiments and comparisons with allyltributylstannane, allylmagnesium bromide, and allylindium species implicate a dual activation mechanism involving addition of an
Asymmetric Allylsilane Additions to Enantiopure N-Acylhydrazones with Dual Activation by Fluoride and In(OTf)3 We thank the National Science Foundation (Vermont EPSCoR) and the University of Vermont for generous support.