S. Hanessian et R. Schaum, 1,3-ASYMMETRIC INDUCTION IN ENOLATE ALKYLATION REACTIONS OF N-PROTECTED GAMMA-AMINO ACID-DERIVATIVES, Tetrahedron letters, 38(2), 1997, pp. 163-166
Dianions derived from N-TFA and N-Boc gamma-amino acid esters and amid
es undergo highly stereoselective alpha-alkylation reactions The roles
of HMPA, of the cation, the electrophile, and of steric factors were
studied. Copyright (C) 1996 Elsevier Science Ltd