14548-47-1Relevant articles and documents
Photocatalyst-controlled and visible light-enabled selective oxidation of pyridinium salts
Peng, Xiang-Jun,He, Hai-Ping,Liu, Qian,She, Kun,Zhang, Bao-Qi,Wang, Heng-Shan,Tang, Hai-Tao,Pan, Ying-Ming
, p. 753 - 760 (2021/03/31)
This study proposes two different methods of photocatalytic-controlled and visible light-induced selective oxidation of pyridiniums with air as the terminal oxidant. The key to these transformations is to choose the appropriate light source and photocatal
A Nickel-Catalyzed Carbonyl-Heck Reaction
Vandavasi, Jaya Kishore,Hua, XiYe,Halima, Hamdi Ben,Newman, Stephen G.
, p. 15441 - 15445 (2017/11/10)
The use of transition-metal catalysis to enable the coupling of readily available organic molecules has greatly enhanced the ability of chemists to access complex chemical structures. In this work, an intermolecular coupling reaction that unites organotriflates and aldehydes is presented. A unique catalyst system is identified to enable this reaction, featuring a Ni0 precatalyst, a tridentate Triphos ligand, and a bulky amine base. This transformation provides access to a variety of ketone-containing products without the selectivity- and reactivity-related challenges associated with more traditional Friedel–Crafts reactions. A Heck-type mechanism is postulated, wherein the π bond of the aldehyde takes the role of the olefin in the insertion/elimination steps.
DDQ/tert-Butyl nitrite-catalyzed aerobic oxidation of diarylmethane sp3 C-H bonds
Ma, Jiaqi,Hu, Zhiming,Li, Meichao,Zhao, Weijuan,Hu, Xinquan,Mo, Weimin,Hu, Baoxiang,Sun, Nan,Shen, Zhenlu
, p. 6733 - 6739 (2015/08/24)
An efficient 2,3-dichloro-5,6-dicyano-1,4-benzoquinone/tert-butyl nitrite-catalyzed aerobic oxidation of diarylmethane sp3 C-H bonds in the presence of acetic acid has been developed. Under the optimal reaction conditions, a number of diarylmethanes can be directly converted to their corresponding diarylketones in good to excellent yields. In addition, a plausible reaction mechanism has been investigated.