Journal of Organometallic Chemistry p. 279 - 292 (1989)
Update date:2022-08-16
Topics:
Hoberg, Heinz
Guhl, Dieter
Fluorine substituted alkenes such as 3,3,3-trifluoropropene (Ia) and 1,1-difluoroethene (Ib) undergo highly regioselective 1/1 CC-coupling reactions with phenylisocyanate (II) on (Lig)Ni0 systems to form tricyclohexylphosphane-(2-trifluoromethyl)-5-azanickelacyclopentan-4-one (Va) and tricyclohexylphosphane-5-azadifluoronickelacyclopentan-4-one (Vb).The structures of these compounds were confirmed by 1H, 13C, 31P and 19F NMR spectrscopy, which show that the coordination geometry about nickel is approximately square planar.The reactivity of Va/Vb differs strongly from that of known alkyl- or aryl-substituted nickela-systems, as shown by the effect of various protonolysis reagents, the reaction with electrophiles such as CO and MeI, the behaviour of Va and Vb during thermolysis.
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