Patent ID: 8637713

Claim:
A process for the preparation of a compound according to the following general formula (I): wherein R 1 =C 1-20 alkyl, C 2-20 alkenyl, C 2-20 alkynyl, C 2-20 organohalide, an aryl, an amine or amide group; n=1 to 5; and said process comprising: (a) performing an asymmetric catalytic reduction on a hydroxyphenone according to the following general formula (II): wherein R 1 =C 1-20 alkyl, C 2-20 alkenyl, C 2-20 alkynyl, C 2-20 organohalide, an aryl, an amine or amide group; n=1 to 5; and wherein said asymmetric catalytic reduction is performed using transfer hydrogenation, and wherein said asymmetric catalytic reduction is performed using a chiral metal catalyst.