Abstract: Chiral amino alcohol is a kind of the ligand or catalyst with great potential for the development of catalytic asymmetric synthesis. In this paper the inspection on the basis of relevant information summarizes the asymmetric catalytic reduction of new progress. It is to hand a new multi-functional hands of the amino alcohol ligand synthesized from natural amino acids,and used Infrared to determine the structure of the compound..
We use the (1R,2S)-(-) or (1S,2R)-(+)-2-amino-1,2-diphenyl ethanol as chiral source, Acetonitrile as solvent , K2CO3 for lashing acid , a small amount of KI as a catalyst , and 1,3-two benzyl bromide to synthesize two catalytic centre ligand and 1,3,5-three benzyl bromide to synthesize three catalytic centre ligand by silica gel column chromatography in the white color crystals , and the melting point of products for polarimetry . products by IR to confirm its structure in which the pair of enantionmers . the degree of physical constants are very good verification .
