Dj. Adams et al., NEW SYMMETRY-BREAKING DEPROTONATION REACTIONS OF CYCLIC IMIDES USING A CHIRAL LITHIUM AMIDE BASE, Chemical communications, (15), 1998, pp. 1605-1606
Treatment of various N-substituted succinimides, possessing additional
three-, four- or five-membered ring-fusion, with a mixture of chiral
lithium amide base and Me3SiCl, enables enantioselective silylation to
give products in up to 95% ee.