Rhodium(I)-Catalyzed Enantioselective Hydrogenation of Substituted Acrylic Acids with Sterically Similar β,β-Diaryls
作者:Yang Li、Kaiwu Dong、Zheng Wang、Kuiling Ding
DOI:10.1002/anie.201302349
日期:2013.6.24
Distinct differentiation: β,β‐Disubstituted acrylic acids with sterically similar geminal diaryl groups can be hydrogenated with excellent enantioselectivities in the presence of a RhI complex formed in situ with two‐component ligands, a chiral secondary phosphine oxide (SPO) and an achiral phosphine (Ph3P). The sense of asymmetric induction was found to be controlled by the substrate configuration
独特的区别:在具有双组分配体,手性仲氧化膦(SPO)和非手性原位形成的Rh I配合物存在下,具有相似的双键双芳基基团的β,β-二取代丙烯酸可以出色的对映选择性进行氢化膦(Ph 3 P)。发现不对称诱导的感觉受底物构型控制,因此允许使用相同的催化剂接近产物的两种对映异构体。