M. Reggelin et H. Weinberger, METALATED 2-ALKENYLSULFOXIMINES - REACTIVITY AND NMR-SPECTROSCOPIC STUDIES, Phosphorus, sulfur and silicon and the related elements, 95-6(1-4), 1994, pp. 341-342
Enantiomerically pure, metalated 2-Alkenylsulfoximines were used to pr
epare gamma-hydroxyvinylsulfoximines yielding very high diastereomeric
excesses. Experiments with epimeric mixtures and NMR-spectroscopic st
udies of the lithiated intermediates demonstrate their configurational
lability as opposed to the assumed configurational stability of the t
itanium compound.