Triflimide-catalysed sigmatropic rearrangement of N-allylhydrazones as an example of a traceless bond construction

Abstract
A triflimide-catalysed rearrangement of N-allylhydrazones has been developed that allows for the generation of a sigma bond between two unfunctionalized sp3 carbons such that no clear marker remains for how the bond was formed. This traceless bond construction offers new avenues for convergent fragment coupling in synthetic strategies.