A facile Claisen rearrangement involving the transient tautomeric enamine forms of α-allyloxy and α-propargyloxyimines

Article abstract of DOI:10.1016/S0040-4039(00)60106-5

α-Allyloxyimines rearrange smoothly to 2-amino-2-allyl-ketones by heating at 80°C for few hours, by Claisen rearrangement of the tautomeric secondary enamine. Similarly α-propargyloxyimine gave 2-amino-2-allenyl-ketones. By contrast, 2-benzyloxyimines aff