Showing papers in "Journal of Fluorine Chemistry in 2007"

TL;DR: Recent advances in the development of new strategies in nucleophilic, electrophilic, and radical trifluoromethylations are reviewed in this article, where the emphasis is given to the description of the triffluoromethrylating agents, their activation mode, their reaction with carbonyl compounds and derivatives, as well as application in asymmetric synthesis.

TL;DR: The use of fluorides either as coatings or in the formation of oxyfluorides has resulted in a marked increase of the stability and morphological development of electrodes for use in nonaqueous lithium and lithium-ion batteries as discussed by the authors.

TL;DR: The outstanding properties of fluorine gas, e.g., extreme reactivity and oxidizing power, and the utmost electronegativity of F− ion, lead to very strong bonds between fluorine and most of the other elements of the periodical table as discussed by the authors.

TL;DR: In this article, the more recent topics in the field of fluorinated carbon materials are given with the emphasis on the research work presented by our group. And the direct fluorination and/or oxy-fluorination of various carbon materials especially of new carbon materials, i.e. nanotubes, carbon fibers, and activated carbon fibers have been described.

TL;DR: In this article, the background of the enantioselective fluorination reaction and some successful applications of the methods to the design and synthesis of biologically active products are presented, and two novel approaches using cinchona alkaloid/Selectfluor® combinations and chiral ligands/metal complexes have been pursued.

TL;DR: In this article, the authors introduce the fully fluorinated gas in industrial/commercial uses, and its toxic decomposition products in their environmental and health hazards, occupational exposure limits and possible exposure sources.

TL;DR: The use of elemental fluorine as a reagent over the period 1997-2006 for carbon-fluorine bond formation in organic synthesis is reviewed in this paper, where recent advances in the exhaustive fluorination of ethers and esters to give perfluorinated systems, selective direct fluorification of aliphatic, aromatic, heterocyclic and carbonyl systems and the application of microreactor techniques to direct fluorination are discussed.

TL;DR: In this paper, the preparation of fluorine-doped PbO2 in the presence of some additives (F−, potassium salt of non-afluoro-1-butanesulfonic acid C4F9O3SK and Nafion®) is reported.

TL;DR: In this article, the main focus is laid on the non-aqueous sol-gel-synthesis, which is opening a wide window toward nanoscopic metal fluorides with properties remarkably different from that of crystalline metal fluoride.

TL;DR: In this paper, the surface modification of multi-walled carbon nanotubes (MWCNTs) with acid and oxyfluorination has been examined, and it can be concluded that nitrogen doping of the graphite sheets may take place and a C-N bond identical to the sp 3 -bonded carbon nitride may form during the acid treatment process.

TL;DR: Fluorinated polyacrylates with side group containing vinylidene fluoride (VDF) units (CF 3 (CF 2 ) n (CH 2 CF 2 ) m, n ǫ = 3, 5; m ǔ = 1, 2) were successfully synthesized as discussed by the authors.

TL;DR: The difluoromethylcadmium and zinc reagents have been prepared in DMF via direct insertion of Cd0 into the carbon halogen bond of CF2HY (Y = Br, I) as discussed by the authors.

TL;DR: An overview of recent structural studies on alkylimidazolium-based salts containing fluoroanions is presented in this article, where the authors mainly focus on structures of alkylinidazolate-based alkaline cations combined with a fluorocomplex anion.

TL;DR: When associated with an alkaline halide, such as cesium fluoride, or Cesium chloride, and Cu(I) species, methyl trifluoroacetate (MTFA) constitutes a valuable triferomethylating agent for substituting aromatic (or heteroaromatic) iodides and bromides as mentioned in this paper.

TL;DR: In this paper, a self-propagating solid-state metathesis method with the help of the ball milling and the following calcination was used to synthesize cathode materials from oxalate precursors.

TL;DR: In this article, a short overview on the utilization of fluorine for the preparation of crystalline microporous frameworks including different families of solids: zeolites, metal phosphates and metal-organic frameworks (MOF-type).

TL;DR: The addition of radical scavengers to the fluoridation of diaryliodonium salts was demonstrated to improve both the reproducibility of the process and the material yield of the desired fluoroarene products as mentioned in this paper.

TL;DR: Fluorine insertion reactions have been shown to be capable of modifying the physical properties of metal oxide materials, as a result of the structural and electronic consequences of fluorine insertion as discussed by the authors.

TL;DR: Continuous flow microreactor technology has been used for the direct fluorination of a range of deactivated di- and tri-substituted aromatic systems as mentioned in this paper. But the use of micro-reactors has not yet been considered in the field of bio-medical applications.

TL;DR: In this article, the spectroscopic, gain and laser properties of CaF2 single crystals doped with trivalent rare-earth ions have been studied for their laser potentials in the red and infrared spectral domains, respectively.

TL;DR: The discovery stories of three fluorine-containing insecticides in our laboratory are described in this paper, i.e., amidoflumet, a new trifluoromethanesulfonanilide with high miticidal activity against various house dust mites, Metofluthrin, a potent new fluorinated pyrethroid with extremely high knockdown action against various mosquitoes, and a new α-pyrone compound, 3-[1R-trans-(2-trifluorsyl)cyclopropanecarbonyl]-4-

TL;DR: In this paper, the effect of direct fluorination using an F2/N2 mixture at 653 K on the surface and bulk properties of two types of high strength carbon fibres was reported.

TL;DR: A new solid acid/superacid catalyzed microwave assisted synthesis of trifluoromethyl-imines is described, providing significantly higher yields than traditional methods during relatively short reaction times for the preparation of the target compounds.

TL;DR: A series of N-alkylated perfluorooctanesulfonamides and structurally related compounds were synthesized by reaction of the corresponding perfluoroalkanesulfonyl fluoride with a suitable primary or secondary amine to minimize steric crowding around the S-N bond.

TL;DR: In this paper, the authors describe catalytic asymmetric synthesis of α-(trifluoromethyl)benzylamine via biomimetic transamination using chiral base.

TL;DR: In this article, the synthesis of C 6 F 13 CH 2 C(CF CFCF 3 ) N-C 2 H 4 4 -C 6 H 5 (11 ) from the addition of H 2 N −C 2H 4 4 −C 6H 5 onto CH 2 CF 2 CF(CF 3 )CF 2 H ( 3 ) is presented.

TL;DR: Piperidine and 1,1, 1-3, 3,3,3 hexafluoro-2-propanol (HFIP) have been co-crystallized and X-ray crystal structure has been explored as discussed by the authors.

TL;DR: In this paper, the effects of the carbon backbone chain length on the EPR spectra of linear perfluoro-n-alkanes (PFAs) γ-irradiated at 77 K was studied for the short chain n-C6F14, n-c8F16, n −C12F26, and n −c16F34 molecules as well as the polymer polytetrafluoroethylene (PTFE).

TL;DR: In this paper, the terminal double bond of allylbenzenes and (CF 3 ) 2 CFI to allylpyridines in a MeCN/H 2 O system were investigated.

TL;DR: In this article, β-elimination of aliphatic triflones bearing an acidic hydrogen in β position was used for the synthesis of triflinate salts under mild conditions.