Patent ID: 7465838
Filing Date: 2008-12-16
Classification: B01J,C07B,C07C,C07D,C07F

Abstract:
1. A process for the preparation of C 2 -symmetric 1,4-diols of the formula IVA or IVB having a high enantiomeric purity wherein ring A which includes the shown double bond forms a mono-, di- or polycyclic aromatic or heteroaromatic ring and R 1 and R 2 are, independently of each other, an organic moiety, the process comprising reacting an α-(aryl or heteroaryl)-α-substituted alkanol compound of the formula IA (for the synthesis of a compound of the formula IVA) or IB (for the synthesis of a compound of the formula IVB)  wherein ring A and R  wherein ring A and R  wherein ring A, R