538-39-6Relevant academic research and scientific papers
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
Hydrogenolysis of carbon-carbon σ-bonds using water catalysed by semi-rigid diiridium(iii) porphyrins
Fong, Ching Wai,Yu, Ho Yin,Gros, Claude P.,Chan, Kin Shing
, p. 3656 - 3659 (2019)
Semi-rigid diiridium(iii) porphyrin alkyls with m-xylyl and p-xylyl diether linkers were synthesized. They were found to be catalysts for the carbon-carbon σ-bond hydrogenolysis of [2.2]paracyclophane under neutral conditions using water as the hydrogen s
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.
Reversible Thermal Carbon-Hydrogen Bond Cleavage in Alkanes and Arenes with Dihalogenobis(triphenylphosphine)palladium(II) Complexes
Vedernikov, Andrei N.,Kuramshin, Arkadii I.,Solomonov, Boris N.
, p. 121 - 122 (1994)
Dihalogenobis(triphenylphosphine)palladium(II) complexes 1, PdX2(PPh3)2 (X = Cl, Br, I), reacts reversibly with saturated and aromatic hydrocarbons RH (RH = p-xylene, toluene, benzene, n-hexane, cyclohexane), slowly at ambient temperature and rapidly on h
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(
Reductive C(sp3)-C(sp3) homo-coupling of benzyl or allyl halides with H2using a water-soluble electron storage catalyst
Futakuchi, Sayaka,Miyazawa, Keishi,Nakai, Hidetaka,Ogo, Seiji,Shimauchi, Daiki,Takahashi, Yukina,Yatabe, Takeshi,Yoon, Ki-Seok
, p. 39450 - 39454 (2021/12/27)
This paper reports the first example of a reductive C(sp3)-C(sp3) homo-coupling of benzyl/allyl halides in aqueous solution by using H2as an electron source {turnover numbers (TONs) = 0.5-2.3 for 12 h}. This homo-coupling reaction, promoted by visible light, is catalysed by a water-soluble electron storage catalyst (ESC). The reaction mechanism, and four requirements to make it possible, are also described.
Synthesis of Dibenzyls by Nickel-Catalyzed Homocoupling of Benzyl Alcohols
Pan, Feng-Feng,Guo, Peng,Huang, Xiaochuang,Shu, Xing-Zhong
, p. 3094 - 3100 (2021/04/23)
Dibenzyls are essential building blocks that are widely used in organic synthesis, and they are typically prepared by the homocoupling of halides, organometallics, and ethers. Herein, we report an approach to this class of compounds using alcohols, which are more stable and readily available. The reaction proceeds via nickel-catalyzed and dimethyl oxalate assisted dynamic kinetic homocoupling of benzyl alcohols. Both primary and secondary alcohols are tolerated.
Use of Isopropyl Alcohol as a Reductant for Catalytic Dehydoxylative Dimerization of Benzylic Alcohols Utilizing Ti?O Bond Photohomolysis
Iwasawa, Nobuharu,Sumiyama, Keiichi,Toriumi, Naoyuki
supporting information, p. 2474 - 2478 (2021/06/25)
Photohomolysis of Ti?O bonds is utilized in photocatalytic generation of titanium(III) species for dehydroxylative dimerization of benzylic alcohols under UV-light irradiation by using isopropyl alcohol (IPA) as a stoichiometric reductant. In this reaction, IPA works not as a single-electron donor as in the photo-redox catalyzed reactions but as an H-atom-donor. The reaction also proceeds under visible-light irradiation in the presence of thioglycolic acid as a ligand.
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.
