Results 11 to 20 of about 9,709 (169)

Per- and poly-fluoroalkyl substances (PFAS) sensing: A focus on representatively sampling soil vadose zones linked to nano-sensors

Ecotoxicology and Environmental Safety
Per- and poly-fluoroalkyl substances (PFAS) are a group of organo-fluorine compounds that have been broadly used in consumer and industrial products spanning virtually all sectors. They can be found as surfactants, coatings and liners, polymer additives,
Bin Qian, John L. Rayner, Greg B. Davis, Adrian Trinchi, Gavin Collis, Ilias (Louis) Kyratzis, Anand Kumar   +6 more
doaj   +2 more sources

Bookreview, Houben-Weyl, Vol. E10, Organo-Fluorine Compounds. Methods of Organic Chemistry [PDF]

Synthesis, 2001
K. Baumann, P. Hilgers, A. Marhold
openaire   +2 more sources

Evaluation of Organo [18F]Fluorosilicon Tetrazine as a Prosthetic Group for the Synthesis of PET Radiotracers

Molecules, 2020
Fluorine-18 is the most widely used positron emission tomography (PET) radionuclide currently in clinical application, due to its optimal nuclear properties. The synthesis of 18F-labeled radiotracers often requires harsh reaction conditions, limiting the
Sofia Otaru, Surachet Imlimthan, M. Sarparanta, K. Helariutta, K. Wähälä, A. Airaksinen   +5 more
semanticscholar   +1 more source

Preface fluorine chemistry in Italy [PDF]

, 2004
The aim of this special issue Fluorine Chemistry in Italy is to give a cross-section of the current research activity of fluorine chemists in Italy. Authors have been asked to present in their papers some of their more recent results and to frame them ...
RESNATI, GIUSEPPE, METRANGOLO, PIERANGELO   +1 more
core   +1 more source

Further Insight into Extractable (Organo)fluorine Mass Balance Analysis of Tap Water from Shanghai, China

Environmental Science and Technology, 2023
The ubiquitous occurrence of per- and polyfluoroalkyl substances (PFAS) and the detection of unexplained extractable organofluorine (EOF) in drinking water have raised growing concerns.
Enmiao Jiao, Pontus Larsson, Qi Wang, Zhiliang Zhu, Daqiang Yin, Anna Kärrman, Patrick van Hees, Patrik Karlsson, Yanling Qiu, Leo W. Y. Yeung   +9 more
semanticscholar   +1 more source

The difluoromethylene (CF2) group in aliphatic chains: Synthesis and conformational preference of palmitic acids and nonadecane containing CF2 groups

Beilstein Journal of Organic Chemistry, 2014
The syntheses of palmitic acids and a nonadecane are reported with CF2 groups located 1,3 or 1,4 to each other along the aliphatic chain. Specifically 8,8,10,10- and 8,8,11,11-tetrafluorohexadecanoic acids (6b and 6c) are prepared as well as the singly ...
Yi Wang, Ricardo Callejo, Alexandra M. Z. Slawin, David O’Hagan   +3 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., Cronin, David J., Dingwell, Donald B.   +2 more
core   +1 more source

The effects of trifluoromethylated derivatives on prostaglandin E2 and thromboxane A2 production in human leukemic U937 macrophages.

Medicinal chemistry, 2020
BACKGROUND Convenient approach to modulation of the inflammation is influence on production of inflammatory mediators - eicosanoids, generated in arachidonic acid (AA) metabolism.
I. Beara, Tatjana Majkić, S. Fioravanti, Laura Trulli, N. Mimica-Dukić, L. Pellacani, L. Saso   +6 more
semanticscholar   +1 more source

The preferred conformation of erythro- and threo-1,2-difluorocyclododecanes

Beilstein Journal of Organic Chemistry, 2012
Cyclododecane adopts a square-like structure with corner and edge CH2 groups. In this study erythro- and threo-1,2-difluorocyclododecanes were prepared to explore whether the two vicinal C–F bonds, with different relative configurations, preferably ...
Yi Wang, Peer Kirsch, Tomas Lebl, Alexandra M. Z. Slawin, David O'Hagan   +4 more
doaj   +1 more source

Prins fluorination cyclisations: Preparation of 4-fluoro-pyran and -piperidine heterocycles

Beilstein Journal of Organic Chemistry, 2010
The Prins reaction was investigated using BF3·OEt2 as a Lewis acid. It has been recently demonstrated, that if BF3·OEt2 is used in stoichiometric amounts then these reactions generate fluorinated products where the BF3·OEt2 contributes fluoride ion to ...
Guillaume G. Launay, Alexandra M. Z. Slawin, David O'Hagan   +2 more
doaj   +1 more source