Air‐stable P‐chiral dihydrobenzooxaphosphole oxazoline ligands were designed and synthesized. When they were used in the iridium‐catalyzed asymmetric hydrogenation of unfunctionalized 1‐aryl‐3,4‐dihydronaphthalenes under one atmosphere pressure of H2, up to 99:1 e.r. was obtained. High enantioselectivities were also observed in the reduction of the exocyclic imine derivatives of 1‐tetralones.
设计并合成了空气稳定的对映体,其手性为二氢
苯并恶唑磷恶唑啉
配体。当它们在一个大气压H 2下用于
铱催化的未官能化的1-芳基-3,4-二氢
萘的
铱催化不对称氢化反应时,可得到高达99:1的er。在1-
丁酮的环外
亚胺衍
生物的还原反应中也观察到了高对映选择性。