140681-68-1Relevant articles and documents
Radiosynthesis and evaluation of [18F]Selectfluor bis(triflate)
Teare, Harriet,Robins, Edward G.,Kirjavainen, Anna,Forsback, Sarita,Sandford, Graham,Solin, Olof,Luthra, Sajinder K.,Gouverneur, Veronique
, p. 6821 - 6824 (2010)
(Figure Presented) Selectfluor, one of the most reactive and commonly used electrophilic fluorinating N-F reagents, has been radiolabeled with 18F. The resulting new [18F]-labeled N-F reagent is safe, nontoxic, and easy to handle. The combined use of [18F]Selectfluor bis(triflate) and AgOTf allows for the preparation of electron-rich 18F-aromatic compounds through a simple "shake and mix" protocol at room temperature (see scheme; SA=specific activtiy).
Metal-free18F-labeling of aryl-CF2H via nucleophilic radiofluorination and oxidative C-H activation
Yuan, Gengyang,Wang, Feng,Stephenson, Nickeisha A.,Wang, Lu,Rotstein, Benjamin H.,Vasdev, Neil,Tang, Pingping,Liang, Steven H.
supporting information, p. 126 - 129 (2016/12/27)
A metal-free and selective method to form [18F]aryl-CF2H through nucleophilic radiofluorination of benzyl (pseudo)halides and oxidative C-H activation of benzylic C-H bonds has been developed. The method is operationally simple and tolerates a variety of electron-neutral/deficient arenes and heteroarenes.
N-halogeno compounds. Part 18. 1-Alkyl-4-fluoro-1,4-diazoniabicyclo [2.2.2] octane salts: User-friendly site-selective electrophilic fluorinating agents of the N-fluoroammonium class
Banks, R. Eric,Besheesh, Mohamed K.,Mohialdin-Khaffaf, Suad N.,Sharif, Iqbal
, p. 2069 - 2076 (2007/10/03)
Methods of synthesis are described for a range of 1-alkyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts [R-N+(CH2CH2)3N+-F (X-)2, where R = CH3, CH2Cl, C2H5, CF3CH2, C8H17 and (X-)2 = (TfO-)2, (BF4-)2, (PF6-)2, (TfO-, BF4-), (TfO-, PF6-), (TfO-, FSO3-)] by direct fluorination (with neat F2 at ≤20 mmHg or F2-N2 blends at 1 atm pressure) of monoquaternary salts of 1,4-diazabicyclo[2.2.2]octane [R-+N(CH2CH2)3N X-] or their 1:1 adducts with boron trifluoride, phosphorus pentafluoride, or sulfur trioxide in acetonitrile at ca - 35°C. The results of site-selective electrophilic fluorination of diethyl sodio(phenyl)malonate [→ PhCF(CO2Et)2], 1-morpholinocyclohexene (→ 2-fluorocyclohexanone), phenol (→ 2- and 4-FC6H4OH), 1- and 2-hydroxynaphthalene (→ 2- and 4-FC10H6OH, and 1-FC10H6OH and 1,1-difluoro-2-oxo-1,2-dihydronaphthalene, respectively), acetanilide (→ 2- and 4-FC6H4NHCOCH3), anisole (→ 2- and 4-FC6H4OCH3) and sodium benzenesulfinate (→ PhSO2F) with these N-fluoroammonium salts are presented.
1-Alkyl-4-fluoro-1,4-diazoniabicyclooctane Salts: a Novel Family of Electrophilic Fluorinating Agents
Banks, R. Eric,Mohialdin-Khaffaf, Suad N.,Lai, G. Sankar,Sharif, Iqbal,Syvret, Robert G.
, p. 595 - 596 (2007/10/02)
Members of a new series of solid, easily handled, storable, transportable, commercially viable, site-selective electrophilic fluorinating agents of the +N-F class (tradenamed Selectfluor reagents) have been synthesized via direct fluorination of monoquaternary salts of 1,4-diazabicyclooctane.