198478-48-7Relevant articles and documents
Replacing Pd(OAc)2 with supported palladium nanoparticles in ortho-directed CDC reactions of alkylbenzenes
Bao, Yong-Sheng,Zhang, Dongling,Jia, Meilin,Zhaorigetu, Bao
, p. 2072 - 2077 (2016)
Supported palladium nanoparticles are used as efficient catalysts for the synthesis of aromatic ketones via cross dehydrogenative coupling reactions of 2-arylpyridines with alkylbenzenes. The catalyst can be reused for five cycles without significantly losing activity. Mechanism research showed that alkylbenzenes were oxidized to their corresponding aldehydes and subsequently coupled with 2-arylpyridines to generate aryl ketones through a Pd0/PdII/PdIV catalytic cycle.
Reaction of organolithium reagents with cyclorhenated and cyclomanganated (η6-arene)tricarbonylchromium complexes: Structural characterization of a new benzoylrhenate intermediate and selective ortho-acetylation of (η6-arene)tricarbonylchromium complexes
Djukic, Jean-Pierre,Maisse, Aline,Pfeffer, Michel,D?tz, Karl Heinz,Nieger, Martin
, p. 2786 - 2790 (1999)
The nucleophilic addition of PhLi to tetracarbonyl[3-methyl-2-{(η 6-phenyl)tricarbonylchromium-(0)}pyridine]rhenium(I) yields the air-stable (exo-benzoyl)(tricarbonyl)[3-methyl-2-{(η 6-phenyl)tricarbonylchromium(0)-κC 2′}pyridine-κN]rhenate(I) that has been isolated and characterized by X-ray diffraction analysis and other spectroscopic methods. A similar treatment applied to cyclomanganated (η6-arene)Cr(CO)3 analogues with a nucleophile such as MeLi provides a new route to the synthesis of ortho disubstituted (η6-acetophenone)Cr(CO)3 derivatives.
Acylation of Arenes with Aldehydes through Dual C-H Activations by Merging Photocatalysis and Palladium Catalysis
Wang, Haiyang,Li, Tao,Hu, Dongyan,Tong, Xiaogang,Zheng, Liyan,Xia, Chengfeng
supporting information, p. 3772 - 3776 (2021/05/10)
An acylation of arenes with aldehydes through dual C-H activations at room temperature is reported. The acylation was initiated by phenanthraquinone-catalyzed hydrogen atom transfer from aldehyde under visible light irradiation. The aldehyde-derived acyl
A Strategy for Amide C-N Bond Activation with Ruthenium Catalyst: Selective Aromatic Acylation
Li, Wenkuan,Zhang, Sheng,Feng, Xiujuan,Yu, Xiaoqiang,Yamamoto, Yoshinori,Bao, Ming
supporting information, p. 2521 - 2526 (2021/04/05)
A strategy for amide C-N bond activation with ruthenium catalyst is described for the first time. The in situ formed bis-cycloruthenated complexes were demonstrated to be the key active species with superior oxidative addition ability to an inert amide C-N bond. The direct C-H bond activation of 2-arylpyridines followed by the amide C-N bond activation took place in the presence of a ruthenium precatalyst to produce monoacylation products in moderate to good yields. Synthetically useful functional groups, such as halogen atoms (F and Cl), ester, acetyl, and vinyl, remained intact during tandem C-H/C-N bond activation reactions.