Copper‐Mediated Fluorination of Aryl Trisiloxanes with Nucleophilic Fluoride
作者:Ruth Dorel、Philip Boehm、Daniel P. Schwinger、John F. Hartwig
DOI:10.1002/chem.201905040
日期:2020.2.6
the nucleophilicfluorination of heptamethyl aryl trisiloxanes to form fluoroarenes is reported. The reaction proceeds in the presence of Cu(OTf)2 and KHF2 as the fluoridesource under mild conditions for a broad range of heptamethyltrisiloxyarenes with high functional group tolerance. The combination of this method with the silylation of aryl C-H bonds enables the regioselective fluorination of non-activated
The fluorination of substituted benzenes using fluoride ions under mild reaction conditions has been one of the most important challenges for the synthesis of biologically active fluorinated aromatic compounds; however, only a few synthetically useful methods are known. In this paper, it is reported that the nucleophilicfluorination of benzynes, generated from either 2-(trialkylsilyl)phenyl nonaf
A Unified Approach to Decarboxylative Halogenation of (Hetero)aryl Carboxylic Acids
作者:Tiffany Q. Chen、P. Scott Pedersen、Nathan W. Dow、Remi Fayad、Cory E. Hauke、Michael C. Rosko、Evgeny O. Danilov、David C. Blakemore、Anne-Marie Dechert-Schmitt、Thomas Knauber、Felix N. Castellano、David W. C. MacMillan
DOI:10.1021/jacs.2c02392
日期:2022.5.11
fundamental motif in synthetic chemistry, playing a critical role in metal-mediated cross-coupling reactions and serving as important scaffolds in drug discovery. Although thermal decarboxylative functionalization of aryl carboxylic acids has been extensively explored, the scope of existing halodecarboxylation methods remains limited, and there currently exists no unified strategy that provides access to
HETEROARYL COMPOUNDS USEFUL AS RAF KINASE INHIBITORS
申请人:Chuaqui Claudio
公开号:US20120040951A1
公开(公告)日:2012-02-16
The present invention provides compounds of formula (I) useful as inhibitors of Raf protein kinase. The present invention also provides compositions thereof, and methods of treating Raf-mediated diseases.
Mechanism of the Aryl–F Bond-Forming Step from Bi(V) Fluorides
作者:Oriol Planas、Vytautas Peciukenas、Markus Leutzsch、Nils Nöthling、Dimitrios A. Pantazis、Josep Cornella
DOI:10.1021/jacs.2c01072
日期:2022.8.17
organobismuth(V) fluorides, featuring a dianionic bis-aryl sulfoximine ligand. An exhaustive assessment of the substitution pattern in the ligand, the sulfoximine, and the reactive aryl on neutral triarylbismuth(V) difluorides revealed that formation of dimeric structures in solution promotes facile Ar–F bond formation. Noteworthy, theoretical modeling of reductive elimination from neutral bismuth(V) difluorides