Phosphine ligand-free RuCl3-catalyzed reductive N-alkylation of aryl nitro compounds
作者:Da-Wei Tan、Hong-Xi Li、David James Young、Jian-Ping Lang
DOI:10.1016/j.tet.2016.05.036
日期:2016.7
efficiently catalyses the reductive N-alkylation of aryl nitrocompounds with alcohols using bio-based glycerol as the hydrogen source and without the need for any added solvents. The reaction can be easily manipulated to produce either imines or secondary amines in high yields. RuCl3-catalyzed reductive N-alkylation of nitroarenes with alcohols affords the corresponding imine products in good to excellent
Enhanced Hydride Donation Achieved Molybdenum Catalyzed Direct <i>N</i>-Alkylation of Anilines or Nitroarenes with Alcohols: From Computational Design to Experiment
作者:Weikang Li、Ming Huang、Jiahao Liu、Yong-Liang Huang、Xiao-Bing Lan、Zongren Ye、Cunyuan Zhao、Yan Liu、Zhuofeng Ke
DOI:10.1021/acscatal.1c02956
日期:2021.8.20
An example of homogeneous Mo-catalyzed direct N-alkylation of anilines or nitroarenes with alcohols is presented. The DFT aimed design suggested the easily accessible bis-NHC-Mo(0) complex features a strong hydride-donating ability, achieving effective N-alkylation of anilines or challenging nitroarenes with alcohols. The enhanced hydride-donating strategy should be useful in designing highly active
介绍了均相 Mo 催化的苯胺或硝基芳烃与醇的直接N-烷基化的例子。DFT 目标设计表明,易于获得的双-NHC-Mo(0) 配合物具有强大的氢化物供体能力,可实现苯胺的有效N-烷基化或用醇挑战硝基芳烃。增强的氢化物捐赠策略应该有助于设计用于借氢转化的高活性系统。
C-N Bond Formation Catalyzed by Ruthenium Nanoparticles Supported on N-Doped Carbon via Acceptorless Dehydrogenation to Secondary Amines, Imines, Benzimidazoles and Quinoxalines
作者:Bin Guo、Hong-Xi Li、Shi-Qi Zhang、David James Young、Jian-Ping Lang
DOI:10.1002/cctc.201801525
日期:2018.12.21
Ruthenium nanoparticles (NPs) supported on N‐doped carbon (Ru/N−C) were prepared by the pyrolysis of cis‐Ru(phen)2Cl2 loaded onto carbon powder (VULCAN XC72R) at 800 °C. Ru/N−C NPs (0.2 mol% Ru) selectively catalyzed either acceptorless dehydrogenation coupling (ADC) or auto‐transfer‐hydrogen (ATH) reactions of amines with alcohols to imines and secondary amines. Such selectivity could be controlled