Results 21 to 30 of about 82,167 (149)
4,4′-(((Perfluoropropane-2,2-diyl)bis(4,1-phenylene))bis(oxy))-bis(2,3,5,6-tetrafluoropyridine)
Molbank, 2023 The title compound was synthesized in near-quantitative yield using nucleophilic aromatic substitution of 4,4′-(hexafluoroisopropylidene)diphenol (BPAF) with perfluoropyridine (PFP). The purity and structure were determined by NMR (1H, 13C, 19F), GC–EIMS,
Katelyn D. Thompson +3 more
doaj +1 more source
Chemical diffusion of fluorine in melts in the system Na2OAl2O3SiO2 [PDF]
, 1985 The volatilization of fluorine from three melts in the system Na2OAl2O3SiO2 has been investigated at 1 atm pressure and 1200–1400°C. The melts chosen have base compositions corresponding to albite, jadeite and a peraluminous melt with 75 mole % SiO2 ...
Scarfe, Christopher M. +1 more
core +1 more source
4-(4-(2-Bromoethyl)phenoxy)-2,3,5,6-tetrafluoropyridine
Molbank, 2023 The title compound was synthesized in near quantitative yields via initial nucleophilic aromatic substitution of pentafluoropyridine (PFP) with 4-(2-bromoethyl)phenol as a versatile precursor for ionic liquids (ILs).
Tiffany H. Li +4 more
doaj +1 more source
The effect of fluorine on viscosities in the system Na2O-Al2O3-SiO2: implications for phonolites, trachytes and rhyolites [PDF]
, 1985 The effect of fluorine on melt viscosities of five compositions in the system Na2O-Al2O3- SiO2h as been investigateda t one atmospherea nd 1000-1600'Cb y concentric-cylinder viscometry.
Scarfe, Christopher M. +2 more
core +1 more source
, 2006 This paper investigates how fluorine implantation can be used to suppress boron diffusion in the base of a double polysilicon silicon bipolar transistor and hence deliver a record fT of 110 GHz.
Messina, A. +8 more
core +2 more sources
Direct electrophilic N-trifluoromethylthiolation of amines with trifluoromethanesulfenamide
Beilstein Journal of Organic Chemistry, 2013 The CF3SN moiety is a substituent with interesting properties. However, there is no easy synthetic access to molecules bearing this group. The trifluoromethanesulfenamide is a new reagent for the electrophilic trifluoromethylthiolation which reacts ...
Sébastien Alazet +2 more
doaj +1 more source
Organo-sulfur phosphorus chemistry
, 1998 P-organo-substituted dithiadiphosphetane disulfides have been prepared by the reaction of ferrocene and arenes with P4S10. Reaction of these compounds and Lawesson's reagent with alkenes, 2,3-dimethylbutadiene and other compounds gave organo-sulfur ...
Mark R. StJ. Foreman (7167302)
core +7 more sources
Reduction of boron diffusion in silicon-germanium by fluorine implantation
, 2004 This paper investigates the effect of a 185 keV, 2.3×1015cm-2 F+ implant on boron thermal diffusion and boron transient enhanced diffusion (TED) in SiGe by characterising the diffusion of a boron marker layer in samples with and without a 288 keV, 6 ...
El Mubarek, H.A.W. +2 more
core +2 more sources
Cu-Mediated trifluoromethylation of benzyl, allyl and propargyl methanesulfonates with TMSCF3
Beilstein Journal of Organic Chemistry, 2013 A Cu-mediated trifluoromethylation of benzyl, allyl and propargyl methanesulfonates with TMSCF3 was developed for the first time. This method offers a convenient and economical approach to various trifluoroethyl-containing compounds.
Xueliang Jiang, Feng-Ling Qing
doaj +1 more source
A one-pot synthesis of 3-trifluoromethyl-2-isoxazolines from trifluoromethyl aldoxime
Beilstein Journal of Organic Chemistry, 2013 Functionalized 3-trifluoromethyl-2-isoxazolines and 3-trifluoromethylisoxazoles were easily prepared from trifluoromethyl aldoxime 2 under mild conditions by using DIB as oxidant.
Raoni S. B. Gonçalves +4 more
doaj +1 more source