进行了详细的 DFT 计算和实验,以研究两种不同亚胺的硼氢化机理。我们的研究结果表明,BAr F 3催化的亚胺硼氢化反应通过 BAr F 3促进的氢化物转移途径进行。根据我们的研究,在先前报道的条件(室温)下,无催化剂的亚胺硼氢化反应很难发生,建立了BH 3 ⋅ SMe 2催化的亚胺硼氢化反应。对于后来的硼氢化反应,我们的结果优选硼氢化/B-H/B-N σ-键复分解途径。
An efficient catalytic system for the alkylation of amines with either alcohols or amines undermildconditions has been developed, using cyclometallated iridium complexes as catalysts. The method has broad substrate scope, allowing for the synthesis of a diverse range of secondary and tertiary amines with good to excellent yields. By controlling the ratio of substrates, both mono‐ and bis‐alkylated
A conjugated ketone as a catalyst in alcohol amination reactions under transition-metal and hetero-atom free conditions
作者:Xingchao Dai、Xinjiang Cui、Youquan Deng、Feng Shi
DOI:10.1039/c5ra07681a
日期:——
Here, we show the results of a molecular-defined conjugatedketone catalyzed alcohol amination reaction. Under the optimized reaction conditions, the yields to the desired products reached 98%. The reaction mechanism and kinetic study supposed that carbonyl–hydroxyl groups are the catalytically active sites, and the transfer-hydrogenation reactions progress via the recycling of carbonyl and hydroxyl
Mechanistic Insight into Hydroboration of Imines from Combined Computational and Experimental Studies
作者:Wentian Zou、Liuzhou Gao、Jia Cao、Zhenxing Li、Guoao Li、Guoqiang Wang、Shuhua Li
DOI:10.1002/chem.202104004
日期:2022.2.21
and experiments were performed to study the hydroboration mechanisms of two different kinds of imines. Our results revealed that BArF3-catalyzed imine hydroboration proceeds through a BArF3-promoted hydride transfer pathway. The catalyst-free imine hydroboration is difficult to occur under the previously reported conditions (room temperature) according to our studies, and a BH3 ⋅ SMe2-catalyzed hydroboration
进行了详细的 DFT 计算和实验,以研究两种不同亚胺的硼氢化机理。我们的研究结果表明,BAr F 3催化的亚胺硼氢化反应通过 BAr F 3促进的氢化物转移途径进行。根据我们的研究,在先前报道的条件(室温)下,无催化剂的亚胺硼氢化反应很难发生,建立了BH 3 ⋅ SMe 2催化的亚胺硼氢化反应。对于后来的硼氢化反应,我们的结果优选硼氢化/B-H/B-N σ-键复分解途径。
CHERNYUK I. N.; ROGOVIK L. I.; VOLOSHENYUK T. N.; PILYUGIN G. T., ZH. OBSHCH. XIMII <ZOKN-A4>, 1975, 45, HO 3, 672-674
作者:CHERNYUK I. N.、 ROGOVIK L. I.、 VOLOSHENYUK T. N.、 PILYUGIN G. T.