Three chiral 5-(diphenylphosphanyl)-1, 2, 3, 4-tetrahydroacridines, as first representative examples of a new class of chiral N, P-ligands were prepared from (+)-nopinone,(+)- camphor and 5α-androst-2-en-17-one. These ligands have been assessed in the enantioselective palladium-catalysed allylic substitution of 1, 3-diphenylprop-2-enyl acetate with dimethyl malonate. Enantioselectivity up to 74% has been obtained.
