e (APPEI) (II)) have been synthesized. The complexes are active and selective catalysts for asymmetric hydrogen transfer from propan-2-ol to prochiral ketones. Optical yields of up to 84% have been obtained in the reduction of t-butyl phenyl ketone. The structure and absolute configuration of complexes I and II were determined by X-ray diffraction.
[Ir(COD)-(NNR ★)I]类型的一些非对映异构五配位络合物(COD =顺式,顺式-
1,5-环辛二烯; NNR ★ = 2-
吡啶-1-苯基乙基
亚胺(PPEI)(I),2 -乙酰基
吡啶-1-苯基乙基
亚胺(APPEI)(II))已经合成。该络合物是用于将丙-2-醇不对称地转移到前手性酮的活性和选择性催化剂。通过
叔丁基苯基酮的还原,可获得高达84%的光学收率。配合物I和II的结构和绝对构型通过X射线衍射测定。