Y. Nakamura et al., SMI2-MEDIATED REDUCTIVE ENOLIZATION OF ALPHA-HETERO-SUBSTITUTED KETONES AND ENANTIOSELECTIVE PROTONATION, Tetrahedron letters, 38(15), 1997, pp. 2709-2712
High enantioselectivity (up to 94% ee) has been achieved in the proton
ation of samarium enolates which were generated by SmI2-mediated reduc
tion of 2-aryl-2-methoxycyclohexanones using a C-2-symmetric chiral di
ol as a proton source. (C) 1997 Elsevier Science Ltd.