[EN] MONOACYLGLYCEROL LIPASE INHIBITORS FOR MODULATION OF CANNABINOID ACTIVITY [FR] INHIBITEURS DE LA MONOACYLGLYCÉROL LIPASE DE MODULATION DE L'ACTIVITÉ CANNABINOÏDE
compounds remains an unsolved issue. Reported here is a nickel‐catalyzed trans‐selective dicarbofunctionalization of N‐Boc‐2‐pyrroline and N‐Boc‐2‐azetine, a class of endocyclic enecarbamates previously unexplored for transition metal catalyzed dicarbofunctionalization. The reaction can be extended to six‐ and seven‐membered endocyclic enamides. A variety of arylzinc reagents and bromodifluoroacetate
Silver-Catalyzed Decarboxylative Radical Addition/Cyclization of α,α-Difluoroarylacetic Acids with Acrylamides To Synthesize Difluorinated Oxindoles
作者:Yin-Long Li、Ji-Bo Wang、Xue-Lin Wang、Yang Cao、Jun Deng
DOI:10.1002/ejoc.201701248
日期:2017.11.2
silver-catalyzed decarboxylative radical addition/cyclizationreaction of α,α-difluoroarylacetic acids and acrylamides has been disclosed. The method provides a highly attractive approach to synthesize a series of difluorinated oxindoles that contain variousfunctional groups in moderate to good yields under mild conditions. Moreover, experimental studies reveal that the CF2 group of the α,α-difluoroarylacetic
Access to α,α-Difluoro-γ-amino Acids by Nickel-Catalyzed Reductive Aryldifluoroacetylation of N-Vinylacetamide
作者:Xingang Zhang、Qing-Wei Zhao、Zhi-Fang Yang、Xia-Ping Fu
DOI:10.1055/s-0040-1706553
日期:2021.9
A nickel-catalyzed reductive aryldifluoroacetylation of N-vinylacetamide with ethyl chloro(difluoro)acetate and aryl iodides is described. This chelating amide carbonyl group-assisted strategy provides rapid access to a variety of protected α,α-difluoro-γ-amino acids that might have potential applications in peptide chemistry and protein engineering. An advantage of this method is its synthetic simplicity
Easy Access to Difluoromethylene-Containing Arene Analogues through Palladium-Catalysed C-H Olefination
作者:Changdong Shao、Guangfa Shi、Yanghui Zhang
DOI:10.1002/ejoc.201600954
日期:2016.11
An efficient palladium-catalyzed ortho C−H olefination of α,α-difluorophenylacetic acidderivatives using 8-aminoquinoline as the bidentate directing group has been developed. A range of olefinated arenes can be synthesized in a concise way. This reaction provides an easy and straightforward access to a panel of difluoromethylated arene analogues in moderate to good yields with a satisfactory tolerance
Ag(i)-catalyzed oxidative decarboxylative gem-difluoromethylenation of difluoroacetates with isonitriles has been developed for the formation of C–CF2 bonds.