644-15-5Relevant academic research and scientific papers
Aryl-Diadamantyl Phosphine Ligands in Palladium-Catalyzed Cross-Coupling Reactions: Synthesis, Structural Analysis, and Application
Sinai, ádám,Simkó, Dániel Cs.,Szabó, Fruzsina,Paczal, Attila,Gáti, Tamás,Bényei, Attila,Novák, Zoltán,Kotschy, András
supporting information, p. 1122 - 1128 (2020/03/03)
Synthesis, temperature-dependent NMR structure investigation and utilization of a new, stable and easily accessible aryl-diadamantylphosphine ligand family is reported. The bulky and electron-rich phosphorus center of the ligand enhances the catalytic activity of palladium in cross-coupling reactions of sterically demanding ortho-substituted aryl halides. In our study, we demonstrated the synthetic applicability of the new phosphine ligands in Buchwald-Hartwig and tosyl hydrazone coupling reactions.
Organic electroluminescent material and organic electroluminescent device containing same
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Paragraph 0087; 0088, (2019/04/27)
The invention provides an organic electroluminescent material and an organic electroluminescent device containing the same, and belongs to the technical field of electroluminescence. According to thematerial, adamantane is introduced to serve as a new core group based on a bis(triarylamine) symmetric structure, the molecular shape is changed, the structure symmetricity is reduced, and the film forming property of a material is promoted; the adamantane has relatively large steric hindrance and rigid structure, and the non-conjugated molecular structure of adamantane cannot influence the electronic energy level of triarylamine, so that the hole transmission performance of the material is ensured; and the compound containing the adamantane group has excellent hole transmission performance, and can be used for manufacturing an organic electroluminescent device, especially a hole transmission layer material in the organic electroluminescent device, so as to effectively improve the luminescence efficiency and prolong the service life of the organic electroluminescent device.
Synthesis, structural characterization, and catalytic activity of IPrNi(styrene)2 in the amination of aryl tosylates
Iglesias, Maria Jose,Blandez, Juan F.,Fructos, Manuel R.,Prieto, Auxiliadora,Alvarez, Eleuterio,Belderrain, Tomas R.,Nicasio, M. Carmen
, p. 6312 - 6316 (2012/10/30)
A novel bis-styrene IPrNi0 derivative has been synthesized from the reaction of Ni(COD)2 and free 1,3-bis(2,6-diisopropylphenyl) imidazolidene (IPr) ligand in the presence of styrene. The complex has been characterized by spectroscopic data as well as by X-ray crystallography. Its catalytic performance in the amination reaction of aryl tosylates is also reported. The catalytic reactions proceed in a very selective manner, affording moderate to high yields of cross-coupling products in short reaction times at 110 °C.
Catalysis by Phthalocyanines, XXVI. - Decomposition of Hydroperoxides on Iron and Cobalt Phthalocyanine
Kropf, Heinz,Spangenberg, Jochen,Gunst, Andreas,Hinrichsen, Jens
, p. 1923 - 1938 (2007/10/02)
The decomposition of 7-cumyl hydroperoxide and tert-butyl hydroperoxide on iron or cobalt phthalocyanine in 1-chloronaphthalene, 1-bromonaphthalene and 3-chlorotoluene proceeds with evolution of oxygen and according to second order kinetics (Figures 2 and 3; Tables 1 - 3 and 7); the yield of oxygen is not quantitative (Figure 1, Tables 1 - 3 and 7).Evolution of oxygen is not observed in 1-methylnaphthalene and decalin. - In the presence of N-(2-naphthyl)aniline the oxygen yield decreases with increasing concentration of the inhibitor (Table 4).The inhibitor efficiency is influenced by substituents in the phenyl group (Table 5), a Hammett relation being fulfilled in the case of 3-Cl and 4-Cl or CH3O (Figure 4). - 2-Benzyl-2-propyl hydroperoxide decomposes without evolution of oxygen.The decomposition rate on cobalt phthalocyanine is influenced by the composition of the solvent systems (1-chloronaphthalene/decalin, 1-chloronaphthalene/3-chlorotoluene, 3-chlorotoluene/decalin) (Table 6). - The mechanism of the decomposition of the hydroperoxides, especially the stabilizing reactions of the radicals, and the attack of the inhibitors is discussed in the light of previous results.
