Over the past decade, the most significant, conceptual advances in the field of fluorination were enabled most prominently by organo- and transition-metal catalysis. The most challenging transformation remains the formation of the parent C-F bond, primarily as a consequence of the high hydration energy of fluoride, strong metal-fluorine bonds, and highly polarized bonds to fluorine. Most fluori...

It is a pleasure to be able to introduce this second Thematic Series on ‘organo-fluorine chemistry’ within the Beilstein Journal of Organic Chemistry. The series now embeds the subject firmly as a special interest area of the journal. The first series in 2008 presented contributions representing a wide range of organic fluorine chemistry [1-10] and this series continues that trend exploring the...

Fluorine, chlorine, zinc, niobium, zirconium, yttrium, and rubidium have been determined on fifteen obsidians from Eburru volcano (Kenya Rift Valley), spanning the range from pantelleritic trachyte to pantellerite. All pairs of elements show positive correlation coefficients, ranging between o'769 and 0"998, but with most values better than o'9oo. In spite of some very high correlations, only t...

In this work, the influence of various hydroxide and salt additives on removal F− ions from silica gel waste, which is obtained during production AlF3, was examined. The leaching mentioned waste to liquid medium achieved by application different techniques: (1) under static conditions; (2) dynamic conditions use continuous flow; (3) in cycles conditions. It determined that efficiency fluoride d...

Fluoride has long been known to influence the activity of various enzymes in vitro. Latterly it has been demonstrated that many effects primarily attributed to fluoride are caused by a synergistic action of fluoride plus aluminum. Fluorinated chemicals are of growing importance, with applications in medicine. Fluorine substitution has profound effects on the properties of organic compounds. The...

We present the reactivity and photochemistry of 2,5-diphenyltellurophene. A change in oxidation state from Te(ii) to Te(iv) occurs by oxidative addition of bromine, chlorine, and fluorine from appropriate halogen sources. Photoreductive halogen elimination is demonstrated using optical absorption spectroscopy and NMR spectroscopy. The photodebromination reaction occurs with 16.9% quantum yield,...

The effect of soluble fluorine species in different concentrations on the catabolic activity of Desulfotomaculum ruminis bacteria has been studied. The fluoride concentrations tolerated by and toxic to the bacteria have been determined. The degree of fluorine species toxicity was found to depend on the form in which fluorine is introduced into the medium and increases in the following order: Na...