4023-77-2Relevant articles and documents
Flexible Construction of Functionalized-Pyrroles under Palladium or Copper Catalysis in the Presence of BF3 ? Et2O
Guo, Wusheng,Liu, Teng,Liu, Yin,Wei, Kun,Yan, Biwei
supporting information, (2022/01/26)
We have developed a flexible approach enabling the access to highly functionalized pyrroles under palladium or copper catalysis in the presence of BF3 ? Et2O. This catalytic methodology utilizes commercially available amines as react
Method for synthesizing alpha, beta unsaturated ketone
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Paragraph 0016-0022, (2021/10/11)
The invention belongs to the technical field of chemical synthesis, and particularly relates to a method for synthesizing alpha, beta unsaturated ketone. The reaction adopts a synergetic catalysis system of Co(acac)2 or Co(acac)3, a ligand and AlMe3, provides a way for economically and selectively synthesizing alpha, beta unsaturated ketones by atoms, and has the advantages of high yield and wide substrate range.
Synergistic Activation of Amides and Hydrocarbons for Direct C(sp3)–H Acylation Enabled by Metallaphotoredox Catalysis
Baik, Mu-Hyun,Choi, Seulhui,Hong, Soon Hyeok,Lee, Geun Seok,Won, Joonghee
, p. 16933 - 16942 (2020/08/03)
The utilizations of omnipresent, thermodynamically stable amides and aliphatic C(sp3)?H bonds for various functionalizations are ongoing challenges in catalysis. In particular, the direct coupling between the two functional groups has not been realized. Here, we report the synergistic activation of the two challenging bonds, the amide C?N and unactivated aliphatic C(sp3)?H, via metallaphotoredox catalysis to directly acylate aliphatic C?H bonds utilizing amides as stable and readily accessible acyl surrogates. N-acylsuccinimides served as efficient acyl reagents for the streamlined synthesis of synthetically useful ketones from simple C(sp3)?H substrates. Detailed mechanistic investigations using both computational and experimental mechanistic studies were performed to construct a detailed and complete catalytic cycle. The origin of the superior reactivity of the N-acylsuccinimides over other more reactive acyl sources such as acyl chlorides was found to be an uncommon reaction pathway which commences with C?H activation prior to oxidative addition of the acyl substrate.