Cooperative Mn(<scp>i</scp>)-complex catalyzed transfer hydrogenation of ketones and imines
作者:Kasturi Ganguli、Sujan Shee、Dibyajyoti Panja、Sabuj Kundu
DOI:10.1039/c8dt05001e
日期:——
complex presented higher reactivity in the transfer hydrogenation (TH) of ketones in 2-propanol. Experimentally, it was established that both the benzimidazole and amine N–H proton played a vital role in the enhancement of the catalytic activity. Utilizing this system a wide range of aldehydes and ketones were reduced efficiently. Notably, the TH of several imines, as well as chemoselective reduction of
据报道,带有双功能配体的Mn(I)配合物的合成和反应性均包含胺N-H和苯并咪唑片段。在各种配体中,含Mn(I)的N -((1 H-苯并咪唑-2-基)甲基)苯胺配体)配合物在2-丙醇中酮的转移加氢(TH)中表现出更高的反应性。实验确定,苯并咪唑和胺NH质子均在增强催化活性中起着至关重要的作用。使用该系统可以有效地减少各种醛类和酮类。值得注意的是,在该催化剂的存在下,实现了几种亚胺的TH以及不饱和酮的化学选择性还原。进行DFT计算以了解合理的反应机理,该机理揭示了转移氢化反应遵循协调的外球机理。