Organocuprate reagents prepared from alpha-aminoalkyllithium reagents
and CuCN react with allylic electrophiles to afford homoallylic amines
. Allylic sulfides of benzothiazole-2-thiol give exclusively substitut
ion products without rearrangement while cuprate reagents prepared fro
m primary alpha-aminoalkyl ligands react with allylic bromides to give
rearranged substitution products with modest regioselectivity. Chemic
al yields and regioselectivities are dependent upon solvent, substrate
leaving group, added LiCl salt, and alpha-aminoalkyl ligand.