Indium-Catalyzed Hydroamination/Hydrosilylation of Terminal Alkynes and Aromatic Amines through a One-Pot, Two-Step Protocol
作者:Norio Sakai、Nobuaki Takahashi、Yohei Ogiwara
DOI:10.1002/ejoc.201402544
日期:2014.8
functioned as a single catalyst for two successive steps in a one-pot procedure. First, the hydroamination of alkynes with anilines took place to give the Markovnikov product. Then, hydrosilylation of the imine intermediates by treatment with a hydrosilane substrate afforded the corresponding secondary amines.
Triazole−Au(I) Complexes: A New Class of Catalysts with Improved Thermal Stability and Reactivity for Intermolecular Alkyne Hydroamination
作者:Haifeng Duan、Sujata Sengupta、Jeffrey L. Petersen、Novruz G. Akhmedov、Xiaodong Shi
DOI:10.1021/ja9041093
日期:2009.9.2
3-triazole-bound cationic Au(I) catalysts have been synthesized, and their structures have been characterized by X-ray crystallography. Variable-temperature NMR studies revealed dynamic triazole-Au cation coordination in solution. Reaction profiles clearly indicated that these new catalysts possess much better thermal stability than literature-reported Au catalysts, including IPrAu x NTf(2). By application
合成了一系列 1,2,3-三唑结合的阳离子 Au(I) 催化剂,并通过 X 射线晶体学表征了它们的结构。变温核磁共振研究揭示了溶液中的动态三唑-金阳离子配位。反应曲线清楚地表明,这些新催化剂比文献报道的 Au 催化剂具有更好的热稳定性,包括 IPrAu x NTf(2)。通过应用这些催化剂,用反应性较低的内炔和未保护的脂肪胺实现了具有挑战性的分子间加氢胺化反应,在低催化剂负载的情况下获得了优异的产率。
Merging Photoinduced Iron-Catalyzed Decarboxylation with Copper Catalysis for C–N and C–C Couplings
作者:Ni Xiong、Yang Li、Rong Zeng
DOI:10.1021/acscatal.2c05293
日期:2023.2.3
dual-catalytic strategy for the radical decarboxylation functionalization of aliphatic carboxylic acids. The photoinduced ligand-to-iron charge transfer process under light was initially occurred to generate an unstabilized alkyl radical, and the copper catalyst delivered the radical and enabled the subsequent coupling reactions to form C–N or C–C bonds. By merging iron-catalyzed decarboxylation with copper catalysis