Patent ID: 8680335

Claim:
A process of enantioselectively forming an aminoxy compound of Formula (3) R 1 is one of an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group and an arylalicyclic group, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si, wherein R 2 is one of hydrogen, an aliphatic group and an alicyclic group, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si, and R 3 is one of hydrogen, halogen, hydroxyl, and an aliphatic group with a main chain having 1 to about 10 carbon atoms and 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si, the process comprising contacting a carbonyl compound of Formula (1) and a nitroso compound of Formula (2) in the presence of wherein the reaction is carried out in an aqueous solution in the presence of tetra-n-butylammonium bromide.