Ru(II) complexes of TsDPEN containing two alkyl groups on the non-tosylated nitrogen atom are poor catalysts for asymmetric transfer hydrogenation of ketones and imines; this observation provides direct evidence for the importance of the NâH interaction in the transition state for ketone reduction.
在非对
甲苯磺酰化氮原子上含有两个烷基的 TsDPEN 的 Ru(II) 复合物是酮和
亚胺不对称转移氢化的不良催化剂;这一观察结果直接证明了 NâH 相互作用在酮还原过渡态中的重要性。