1039045-15-2Relevant articles and documents
Recyclable solid ruthenium catalysts for the direct arylation of aromatic C-H bonds
Miura, Hiroki,Wada, Kenji,Hosokawa, Saburo,Inoue, Masashi
, p. 4186 - 4189 (2010)
(Figure Presented) Environmentally benign catalyst: A PPh3-modified Ru/CeO2 catalyst showed excellent catalytic activity toward direct C-H arylation by using various aryl chlorides in the reaction (see scheme). The catalyst was found to act heterogeneously and could be recycled without significant loss of activity.
Arene Ruthenium Catalyst MCAT-53 for the Synthesis of Heterobiaryl Compounds in Water through Aromatic C-H Bond Activation
Mehta, Anita,Saha, Biswajit,Koohang, Ali Aiden,Chorghade, Mukund S.
, p. 1119 - 1130 (2018)
A new water friendly MCAT-53 [Ru2Cl2 (HCOO)3(p-cymene)] Na (sodium η-6-p-cymene dichloro diruthenium triformato complex) has been developed as a catalyst to effect aromatic C-H bond activation and C-C coupling reactions in
Selective C?N Bond Cleavage of N-Acylisatins: Towards High Performance Acylation/Arylation/Transamination Reagents
Xiong, Li,Deng, Rong,Liu, Tingting,Luo, Zhongfeng,Wang, Zijia,Zhu, Xiao-Feng,Wang, Hui,Zeng, Zhuo
supporting information, p. 5383 - 5391 (2019/11/03)
New multipurpose arylation/acylation/transamination reagents, N-acylisatins, have been developed by selective ‘inside-outside’ C?N bond cleavage under different catalytic conditions. As activated amides, N-acylisatins undergo Rh-catalyzed C?H arylation and Pd-catalyzed acylation by cleavage outside the C?N bond, and the desired biaryls and diaryl ketones were obtained in good to excellent yields. Generally, the combination of N-acylisatins with amines leads to a ring-opening reaction and formation of transamination products in a predictable manner through inside C?N bond cleavage. Interestingly, treatment of N-acylisatins with amines lead to unexpected outer-ring transamination products when CsF is added, which shows that CsF can favor the outside C?N bond cleavage path. Notably, this work presents a new strategy for multiple chemical transformations of a single amide to achieve various products by selective C?N bond cleavage. (Figure presented.).
Expeditious and Solvent-Free Nickel-Catalyzed C?H Arylation of Arenes and Indoles
Jagtap, Rahul A.,Soni, Vineeta,Punji, Benudhar
, p. 2242 - 2248 (2017/05/29)
An efficient solvent-free nickel-catalyzed method for C?H bond arylation of arenes and indoles has been developed, which proceeds expeditiously through chelation assistance. The reaction is highly selective for mono-arylation and tolerates sensitive and structurally diverse functionalities, such as halides, ethers, amines, indole, pyrrole and carbazole. This reaction represents the first example of a nickel-catalyzed C?H arylation by monochelate assistance and symbolizes a rare precedent in solvent-free C?H arylation. Mechanistic investigations by various controlled reactions, kinetic studies, and deuterium labeling experiments suggest that the arylation follows a single electron transfer (SET) pathway involving the turnover-limiting C?H nickelation process.