84-15-1Relevant articles and documents
Comparison of the Oxidative Coupling Reactions of Benzene with Those of Methane of Rare Earth Oxide Catalysts
Sugiyama, Shigeru,Ookubo, Takashi,Shimodan, Kazuaki,Hayashi, Hiromu,Moffat, John B.
, p. 3339 - 3345 (1994)
The oxidative coupling of benzene has been compared with that of methane on La2O3, CeO2, Pr6O11, and Sm2O3. At temperatures greater than 1048 K, the gas phase oxidative coupling of benzene appears to be predominant, while the oxidation occurs catalytically at 873 K. The conversion of benzene and of methane at 873 K follows the order of Sm2O3>La2O3>Pr6O11>CeO2, suggesting that the abstraction of hydrogen from the aromatic and the saturated compounds depends primarily on the nature of the catalyst but not the reactant. Ancillary information has also been obtained from the results of XPS analyses of both fresh catalysts and those previously used in one of the reactions.
Suzuki cross-coupling of hexachlorobenzene promoted by the Buchwald ligands
Burukin, A. S.,Vasil’ev, A. A.,Zhdankina, G. M.,Zlotin, S. G.
, p. 169 - 172 (2022/02/17)
The study of cross-coupling between hexachlorobenzene and phenylboronic acid comprised five Buchwald ligands, from which 2-dicyclohexylphosphino-2′-(dimethylamino)biphenyl (DavePHOS) provided the best conversion. When excess of phenylboronic acid was used, a mixture of isomeric tri-, tetra- and pentaphenyl-substituted derivatives in the ~10:70:20 ratio was obtained, along with minor amounts of hydrodechlorination products.
Buchwald ligand-assisted Suzuki cross-coupling of polychlorobenzenes
Burukin, Alexander S.,Vasil'ev, Andrei A.,Zhdankina, Galina M.,Zlotin, Sergei G.
, p. 400 - 402 (2021/06/07)
Screening of four Buchwald ligands for the cross-coupling of isomeric di-, tri- and tetrachlorobenzenes with arylboronic acids revealed that good yields of exhaustive substitution can be best provided by 2-dicyclohexylphosphino-2′-(dimethylamino) biphenyl (DavePHOS).
Tris-NHC-propagated self-supported polymer-based Pd catalysts for heterogeneous C-H functionalization
Choudhury, Joyanta,Dutta, Tapas Kumar,Mandal, Tanmoy,Mohanty, Sunit
supporting information, p. 10182 - 10185 (2021/10/12)
Three-dimensionally propagated imidazolium-containing mesoporous coordination polymer and organic polymer-based platforms were successfully exploited to develop single-site heterogenized Pd-NHC catalysts for oxidative arene/heteroarene C-H functionalization reactions. The catalysts were efficient in directed arene halogenation, and nondirected arene and heteroarene arylation reactions. High catalytic activity, excellent heterogeneity and recyclability were offered by these systems making them promising candidates in the area of heterogeneous C-H functionalization, where efficient catalysts are still scarce.