59115-43-4Relevant articles and documents
Resorcin[4]arene-derived mono-, bis- and tetra-imidazolium salts as ligand precursors for Suzuki-Miyaura cross-coupling
El Moll, Hani,Semeril, David,Matt, Dominique,Toupet, Loic,Harrowfield, Jean-Jacques
, p. 372 - 382 (2012)
Eleven resorcinarene cavitands bearing either one, two or four (3-R-1-imidazolylium)-methyl substituents (R = nBu, Ph, Mes, iPr2C6H3) anchored at resorcinolic "ortho" positions have been synthesised f
Equilibration of the Oxidative Addition Product of Tetrakis(triphenylphosphine)palladium and Electron-Rich Aryl Halides Leads to Product Scrambling in the Stille Reaction
Segelstein, B. E.,Butler, T. W.,Chenard, B. L.
, p. 12 - 13 (1995)
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Nickel-Catalyzed Direct Cross-Coupling of Aryl Sulfonium Salt with Aryl Bromide
Ma, Na-Na,Ren, Jing-Ao,Liu, Xiang,Chu, Xue-Qiang,Rao, Weidong,Shen, Zhi-Liang
, p. 1953 - 1957 (2022/03/27)
The direct cross-couplings of aryl sulfonium salts with aryl halides could be achieved by using nickel as a reaction catalyst. The reactions proceeded efficiently via C-S bond activation in the presence of magnesium turnings and lithium chloride in THF at ambient temperature to afford the corresponding biaryls in moderate to good yields, potentially serving as an attractive alternative to conventional cross-coupling reactions employing preprepared organometallic reagents.
Palladium complexes derived from benzoylthiourea ligands: Synthesis, crystal structure, and catalytic application in Suzuki C–C coupling reactions
Solmaz, Ummuhan,Gumus, Ilkay,Yilmaz, Mustafa Kemal,Ince, Simay,Arslan, Hakan
, (2021/07/19)
[PdCl2(HL1-κS)2] and [PdCl2(HL2-κS)2] complexes were formed from neutral monodentate modes of HL1 and HL2 ligands, which are coordinated to the palladium(II) center, r
Monosubstituted, Anionic Imidazolyl Ligands from N?H NHC Precursors and Their Activity in Pd-Catalyzed Cross-Coupling Reactions
Clark, Kyle J.,Ess, Daniel H.,Jensen, Christopher A.,Kenney, Karissa C.,Larson, Alexandra J. S.,Martinez, Erin E.,Michaelis, David J.,Nazari, S. Hadi,Smith, Stacey J.,Valdivia-Berroeta, Gabriel A.
supporting information, (2020/07/06)
We report that treatment of several 2-diphenylphosphinoimidazoles with Pd(II) salts generates monosubstituted N?H NHC?Pd complexes via insertion into the C?P bond. Removal of the N?H proton in situ leads to anionic (X-type) or imidazolyl-Pd complexes that are highly stable and catalytically active, achieving up to 340,000 turnovers at 1 ppm catalyst loading in Suzuki-Miyaura reactions. DFT-calculated Tolman electronic parameters for the sterically small ligands suggest that these ligands are significantly more donating than traditional NHCs, which provides a rationale for rapid cross-coupling catalysis. Excellent reactivity is also demonstrated in Sonogashira reactions. (Figure presented.).
