One-electron oxidation converts the ferrocene-substituted borane into a Lewis superacid, as reported by Frank Breher, Jan Paradies, and co-workers in their Communication (e202216959). The superacid activates almost inert carbon–fluorine sulfur–fluorine bonds for reductions, alkylations, arylations to form new chemical bonds.

We consider the model with discrete innovations introduced in [1] and studied in [2–9]. In this model the state of the economy is determined by a set of operating technologies, a collection of funds corresponding to these technologies, and a set of known, but as yet not implemented technologies. To introduce a new technology, expenditures of the already utilized types of funds are required. As ...

There have been significant advances in the calculation and interpretation of indirect nuclear spin-spin coupling (J) tensors during the past few years; however, much work remains to be done, especially for molecules containing heavy atoms where relativistic effects may play an important role. Many J tensors cannot be explained based solely on a nonrelativistic Fermi-contact mechanism. In the p...

treatment of tuberculosis (tb) and the discovery of effective new anti tubercular drugs is one of the most urgent priorities in health organizations all around the world. in the present study, fluorinated analogs of some of the most important anti-tb agents such as p-aminosalicylic acid (pas), thiacetazone and pyrazinamide were synthesized and tested against tb. the fluorinated analog of thiace...

Abstract Fluorosis is the most widespread and serious endemic disease in abandoned Yellow River flooding delta of East China. One important causes fluorosis drinking high-fluorine groundwater. In this study, 313 groundwater samples were collected central part to address chemistry high-fluoride groundwater, 33 core from one borehole 150 m depth analyse vertical distribution characteristics total...

The purpose of this review is to describe various geological and chemical factors that are controlling the fluoride concentration in soil, rocks, water, air, plants, animals and food stuffs. Further to discuss well established method that is used as the standard methods of analysis. Rock, Soil, Water, air, plants, animals, foodstuffs all contain fluoride in widely varied concentration. Industri...

Fluorides, hydrogen fluoride, and fluorine have been identified in at least 188 of the 1,636 hazardous waste sites that have been proposed for inclusion on the EPA National Priorities List (NPL) (HazDat 2003). However, the number of sites evaluated for fluorides, hydrogen fluoride, and fluorine is not known. The frequency of these sites can be seen in Figure 6-1. Of these sites, all are located...