ol0609917_si_001.cif (29.19 kB)
Unexpected Ring Expansion of an Enantiopure Imidazoline Carbene Ligand
dataset
posted on 2006-07-06, 00:00 authored by Adela Sánchez Pelegrí, Mark R. J. Elsegood, Vickie McKee, George W. WeaverWe report an unexpected ring expansion reaction of an enantiopure fenchone-derived imidazolinium salt during attempts to form copper
complexes of the corresponding imidazoline carbene ligand. A N,N‘-difenchyl piperazinone was formed in low yield together with the difenchyl-substituted five-membered urea.