This invention provides a method of evaluating the catalytic activity of a rare earth alkoxide used as a starting material of a basic catalyst or an asymmetric synthesis catalyst. The rare earth alkoxide used as the subject of evaluation and 2,2′-dihydroxy-1,1′-binaphthol are used as the starting material to prepare a rare earth complex catalyst which is then used to conduct the asymmetric epoxidation of an enone. The epoxy enone formed by this reaction, the unreacted enone, and the enantiomeric excess are measured, and from these results, the catalytic activity of the rare earth alkoxide is evaluated.
本发明提供了一种评价稀土氧化物作为碱性催化剂或不对称合成催化剂起始原料的催化活性的方法。作为评估对象的稀土氧化
烷烃和 2,2′-二羟基-1,1′-二氢
萘酚被用作制备稀土络合催化剂的起始原料,然后该催化剂被用来进行烯酮的不对称环氧化反应。测量了该反应生成的环氧烯酮、未反应的烯酮和对映体过量,并根据这些结果评估了稀土氧化物的催化活性。