Patent ID: 8399684

Claim:
A catalyst for making compounds having an enantiomeric excess of at least about 70%, the catalyst having a formula where R 6 -R 11 independently are selected from aliphatic, substituted aliphatic, alkoxy, substituted alkoxy, amine, substituted amine, amide, substituted amide, aryl, substituted aryl, aryl alkyl, substituted aryl alkyl, azide, cyclic, substituted cyclic, ester, ether, formyl, halogen, heterocyclic, substituted heterocyclic, heteroaryl, substituted heteroaryl, pyrrolidine, hydrogen, hydroxyl, ketone, substituted ketone, nitro, nitroso, protecting groups, silyl, silyl ether, silyl ester, thiol, thiol ether, thiol ester, or are bonded together to form a ring; R 12 -R 14 are independently selected from hydrogen and lower alkyl: n is from 1-5; and each of the aliphatic substituents as 4 or more carbon atoms.