J. Ahman et al., HOMODIENYL 1,5-HYDROGEN SHIFTS IN VINYL AZIRIDINES, Journal of the Chemical Society, Chemical Communications, (24), 1994, pp. 2785-2786
The thermal 1,5-hydrogen shift of the enantiomerically pure vinyl azir
idines 1 yields allylic imines 3 in quantitative yields and as single
diastereomers.