Patent ID: 7005521

Claim:
A catalytic organometallic composition, wherein the composition is the product of a process which comprises contacting, in a nonprotic, noncomplexing solvent, (a) a chiral ligand L 1 comprising: (i) a chiral component derived from a chiral diamine, diol, or amino alcohol, said component having first and second chiral centers, each substituted with a group X selected from —O— or —NR—, where R is hydrogen or lower alkyl, wherein said chiral centers are connected by a direct bond or by a chain of one to three atoms comprising linkages selected from alkyl (carbon—carbon), alkyl ether (carbon-oxygen), alkyl amino (carbon-nitrogen), or a combination thereof, and, linked to each said group X, (ii) a heteroaryl binding group Cy N having a ring nitrogen atom effective to bind to a metal atom selected from the group consisting of molybdenum, tungsten, and chromium, wherein said binding group is linked to said group X at a ring carbon adjacent to said ring nitrogen atom, is optionally substituted with one or more groups selected from alkyl, alkenyl, aryl, aralkyl, alkoxy, aryloxy, acyl, acyloxy, amide, tertiary amine, nitro, or halogen, and may be fused to one or more additional rings, with (b) a hexacoordinate complex of a metal selected from tungsten(0), chromium(0), and molybdenum(0), whereby said complex undergoes a ligand exchange reaction, such that L 1 becomes coordinated to said metal; wherein said composition is effective to catalyze the enantioselective alkylation of an allyl group bearing a leaving group at its allylic position.