Results 71 to 80 of about 1,384 (194)

MÉTODOS SELETIVOS DE FLUORAÇÃO DE MOLÉCULAS ORGÂNICAS

open access: yesQuímica Nova, 2015
Presently, the world depends on a wide variety of new materials based on organofluorine compounds. These compounds can be used as surfactants, high resistance polymers, liquid crystals, agrochemicals, radiopharmaceuticals for positron emission tomography,
Núbia Boechat   +2 more
doaj   +1 more source

The influence of the C-N⁺ ----- F-C charge dipole interaction in fluoro organic chemistry

open access: yes, 2009
Chapter 1 introduces the discovery of elemental fluorine by H. Moissan and some uses of inorganic fluoride. Organo fluoro compounds and their place in pharmaceuticals and agrochemicals are also introduced.
Gooseman, Natalie Elizabeth Jane
core  

Copper-Catalyzed Regioselective Synthesis of (E)-β-Fluorovinyl Sulfones

open access: yesMolecules, 2019
Organofluorine compounds are finding increasing application in a variety of fields such as pharmaceutical, agrochemical, and material sciences. However, given the scarcity of fluorine-containing natural products, advancement in this area depends almost ...
Raquel Román   +4 more
doaj   +1 more source

Trifluoromethylated enaminoketones : an entry point to organofluorine chemistry

open access: yes, 1998
Two literature syntheses of trifluoromethylated enaminoketones were investigated; a Schreiber route utilising trifluoroacetic anhydride and a tertiary amine was found lacking in generality and reproducibility whilst the synthesis of 4-(ethyloxy)-1,1,1 ...
Andrew, Rebecca Jane
core  

Synthesis and Reactivity of Mn–CF3 Complexes

open access: yesInorganics, 2019
The synthesis, characterization and reactivity of several bi- and tridentate, N-ligated manganese carbonyl trifluoromethyl complexes are presented. These complexes exhibit elongated Mn–CCF3 bonds (versus Mn(CF3)(CO)5), suggesting a lability that ...
Alex L. Daniels   +4 more
doaj   +1 more source

Natural, Unnatural Fluorine!

open access: yesCHIMIA
The rich variety of compounds containing the element fluorine, be it natural products, synthetic materials, or even minerals are well-suited for a critical discussion of the opposites ‘natural’ and ‘unnatural’.
Antonio Togni
doaj   +1 more source

Microreactors and other technologies for direct fluorination [PDF]

open access: yes, 2002
Quinoline/ 2H-chromen-2-one and derivatives thereof, have been found to undergo electrophilic substitution by elemental fluorine in concentrated sulfuric acid as reaction medium.
Holling, Darren
core  

The PFAS Problem in the Context of Organofluorine Chemistry Research and Teaching

open access: yesCHIMIA
Teaching the rich and unique chemistry of poly- and perfluorinated organic compounds should go hand-in-hand with the awareness of their future impact on environment and health.
Antonio Togni
doaj   +1 more source

Selectively fluorinated cyclohexane building blocks: Derivatives of carbonylated all-cis-3-phenyl-1,2,4,5-tetrafluorocyclohexane

open access: yesBeilstein Journal of Organic Chemistry, 2015
Palladium catalysed carbonylation reactions using the meta- and para-iodo derivatives of all-cis-3-phenyl-1,2,4,5-tetrafluorocyclohexane (4) are illustrated as the start point for a variety of functional group interconversions. The resultant benzaldehyde
Mohammed Salah Ayoup   +3 more
doaj   +1 more source

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