Lewis acid mediated cyclisations of silylated methylenecyclopropyl hydrazones.
Silylated methylenecyclopropyl hydrazones on treatment with BF3 x Et2O cyclise to give heterocyclic products involving a novel sequence of hydride and silyl shifts via a series of increasingly stable cationic intermediates.
Department of Chemistry, University of Southampton, Southampton, UK SO17 1BJ.
Lee
L
Patient
Malcolm B
MB
Berry
Simon J
SJ
Coles
Mike B
MB
Hursthouse
Jeremy D
JD
Kilburn