145967-15-3Relevant academic research and scientific papers
Reactivity of Diarylnitrenium Ions
Jeschke, Gunnar,Kütt, Agnes,Nerut, Jaak,Reed, Christopher A.,Toom, Lauri
, (2020)
Hydride abstraction from diarylamines with the trityl ion is explored in an attempt to generate a stable diarylnitrenium ion, Ar2N+. Sequential H-atom abstraction reactions ensue. The first H-atom abstraction leads to intensely colored aminium radical cations, Ar2NH.+, some of which are quite stable. However, most undergo a second H-atom abstraction leading to ammonium ions, Ar2NH2+. In the absence of a ready source of H-atoms, a unique self-abstraction reaction occurs when Ar=Me5C6, leading to a novel iminium radical cation, Ar=N.+Ar, which decays via a second self H-atom abstraction reaction to give a stable iminium ion, Ar=N+HAr. These products differ substantially from those derived via photochemically produced diarylnitrenium ions.
Threefold cross-linked polystyrene-triphenylphosphane hybrids: Mono-P-ligating behavior and catalytic applications for aryl chloride cross-coupling and C(sp3)-H borylation
Iwai, Tomohiro,Harada, Tomoya,Hara, Kenji,Sawamura, Masaya
supporting information, p. 12322 - 12326 (2013/12/04)
Covalently bound polystyrene-phosphane hybrids were prepared by a method based on radical emulsion polymerization of styrenes in the presence of a tris(p-vinylphenyl)phosphane cross-linker. These hybrids favor mono-P-ligation to transition-metal complexes and are useful for challenging catalysis, such as Pd-catalyzed C-C/C-N couplings with unactivated chloroarenes and Ir- or Rh-catalyzed C(sp3)-H borylations. Copyright
(IPr)Pd(pydc) (pydc = pyridine-2,6-dicarboxylate) - A highly active precatalyst for the sterically hindered C-N coupling reactions
Li, Yan-Jing,Zhang, Jin-Ling,Li, Xiao-Jian,Geng, Yu,Xu, Xiao-Hua,Jin, Zhong
, p. 12 - 20 (2013/06/27)
A new class of well-defined NHC-Pd complexes incorporating a pyridine-2-carboxylate or pyridine-2,6-dicarboxylate ligand has been synthesized. These novel complexes exhibited prominent catalytic activity in the sterically hindered C-N coupling reactions at elevated temperature, but relatively inferior reactivity at low temperature. The distinctly different reactivity of these NHC-Pd complexes was presumed to be associated with their unique structures of ancillary ligands.
