Ene-like Addition of an Oxoammonium Cation to Alkenes: Highly Selective Route to Allylic Alkoxyamines
摘要:
The oxoammonium cation of 4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate (1) adds rapidly at room temperature in an ene-like fashion to trisubstituted alkenes to afford allylic alkoxyamines in high yield.