Regioselective Control in the Reactions of α-Aminoalkylcuprates with Allylic Substrates
作者:R. Dieter、Sadanandan Velu、Lois Nice
DOI:10.1055/s-1997-1544
日期:1997.9
Organocuprate reagents prepared from α-aminoalkyllithium reagents and CuCN react with allylic electrophiles to afford homoallylic amines. Allylic sulfides of benzothiazole-2-thiol give exclusively substitution products without rearrangement while cuprate reagents prepared from primary α-aminoalkyl ligands react with allylic bromides to give rearranged substitution products with modest regioselectivity. Chemical yields and regioselectivities are dependent upon solvent, substrate leaving group, added LiCl salt, and α-aminoalkyl ligand.