538-39-6Relevant articles and documents
Comparative activity of aryl, alkyl, and cycloalkyl halides in the suzuki reaction catalyzed with acyclic diaminocarbene complex of palladium
Kras'Ko,Zlotskii,Boyarskii
, p. 2541 - 2546 (2015)
Relative activity of halogenated arenes, alkanes, and alkanes in the Suzuki reaction catalyzed with acyclic diaminocarbene complex of palladium has been investigated. Under all the investigated conditions, 4-iodoanisole has been more active than the alkyl
Carbon-Carbon σ-Bond Transfer Hydrogenation with DMF Catalyzed by Cobalt Porphyrins
Tam, Chun Meng,To, Ching Tat,Chan, Kin Shing
, p. 2174 - 2177 (2016)
Cobalt porphyrins were found to catalyze the transfer hydrogenation of the carbon-carbon σ bond of [2.2]paracyclophane (PCP) with the solvent DMF serving as the hydrogenating agent. Successful trapping experiments with benzene solvent and the kinetic isot
NMR and computational studies of the chemical reduction of [2.2]paracyclophane: Formation of dianionic p-xylenyl oligomers
Gridnev, Ilya D.,Pichierri, Fabio
, p. 150 - 151 (2004)
Reaction of [2.2]paracyclophane with K/Na alloy in THF gives a p-xylylenyl dianion together with its dimer and trimer which are relatively stable at low temperatures; at ambient temperatures further polymerization takes place.
Iridium-catalyzed carbon-Carbon σ-bond hydrogenation with water: Rate enhancement with iridium hydride
To, Ching Tat,Tam, Chun Meng,Chan, Kin Shing
, p. 4333 - 4336 (2015)
Iridium porphyrins were found to be good catalysts for the carbon-carbon σ-bond hydrogenation of [2.2]paracyclophane using water in neutral conditions. Mechanistic investigations reveal the promoting effects of iridium porphyrin hydride, IrIII(
A regionally selective hydrogenation method for chromium-catalyzed thick cyclic aromatic hydrocarbons and olefins based on magnesium-activated ligands
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Paragraph 0020, (2022/01/10)
The present invention relates to the field of hydrogenation, specifically to a chromium-activated complex cyclic aromatic hydrocarbons and olefins promoted by magnesium-activated ligands regionally selective hydrogenation method, which is based on the in situ reduction strategy of magnesium, with biimides as ligands, CrCl2 as catalyst precursors, to construct an efficient low-costchromium hydrogenation system, under mild conditions, to achieve unilateral cyclic hydrogenation of thick ring aromatic hydrocarbons and high-selective hydrogenation of olefins. The system of the present invention is suitable for a variety of substrates of fused cyclic aromatic hydrocarbons, such as tetraphenyl, benzoanthracene, pentabenzo and alfalfa and the like. This provides a simple and efficient strategy and pathway for the synthesis of partially saturated thick cyclic aromatic hydrocarbon compounds.
Aerobic cross-dehydrogenative couplings of N-heteroarenes with toluene derivatives at room temperature
Chen, Yufeng,Deng, Guo-Jun,Huang, Huawen,Sun, Zhaozhao,Wang, Qiao-Lin
supporting information, p. 7790 - 7795 (2021/10/12)
A set of mild aerobic cross-dehydrogenative couplings of N-heteroarenes with the benzylic C(sp3)-H bond has been achieved by using visible-light-induced photocatalysis. This approach was found to provide a sustainable alternative to Minisci benzylation reactions using readily accessible toluene derivatives as benzylating agents. The unique combination of photocatalysis, bromo radical mediation, and aerobic oxidation proved to be the key for the success of the transformation. Mechanistic studies revealed the feasibility of both oxidative and reductive quenching of the excited photocatalyst in the initial step.