Dr. Williams et al., DIASTEREOSELECTION IN THE CONJUGATE ADDITIONS OF ORGANOCOPPER REAGENTS TO N-ENOYLOXAZOLIDINONES, Tetrahedron letters, 39(47), 1998, pp. 8593-8596
A survey of conjugate additions of Yamamoto organocopper reagents to N
-enoyl-4-substituted oxazolidinones is reported. Diastereofacial selec
tivity is reversed for 4-phenyl and 4-benzyloxazolidinones of the same
relative configuration. Alkenylcopper reagents demonstrate superior r
esults in asymmetric additions using the 4-phenyloxazolidinone auxilia
ry. (C) 1998 Elsevier Science Ltd. All rights reserved.