A chiral building block for preparation of chiral stationary phases with strong enantioseparation ability. 1,2,3 One of the most important chiral ligand for synthesis of chiral complex as highly efficient catalysts such as chiral Ti(IV) complex for highly enantioselective silylcyanation of aliphatic and aromatic aldehydes,4 polymer-supported chiral 1,2-diphenylethylenediamine for asymmetric hydrogenation of ketone,5 3-Cu(OAc)2 complex for the Henry reaction6 and chiral macrocyclic lanthanide complexes.7 Also used for synthesis of optically active polyamides.8
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8. Bull. Chem. Soc. Jpn. 1986, 59, 931.