Chloroimidazolium Deoxyfluorination Reagent with HF Anion as a Sole Fluoride Source.

In the study, we introduce an air-stable NHC-based deoxyfluorination reagent ImCl[HF], offering a promising avenue for deoxyfluorination across various substrates. Reagent efficiently fluorinates benzyl alcohols, carboxylic acids, and P(V) compounds without external fluoride sources. A mechanistic study reveals a two-step process involving benzyl chloride as an intermediate, shedding light on the two-step reaction pathway.

From cyclic (alkyl)(amino)carbene (CAAC) precursors to fluorinating reagents. Experimental and theoretical study.

Addition of anhydrous HF to the hydrochloride [CAACH][Cl(HCl)] resulted in the formation of salts with high HF content. By stepwise removal of HF , we selectively prepared [CAACH][F(HF)] (3) and [CAACH][F(HF)] (4). We also characterised a salt with [F(HF)] anions within the structure of [CAACH][F(HF)] (5).

New Insights into Amino-Functionalization of Magnetic Nanoplatelets with Silanes and Phosphonates.

Magnetic nanoplatelets (NPLs) based on barium hexaferrite (BaFeO) are suitable for many applications because of their uniaxial magneto-crystalline anisotropy. Novel materials, such as ferroic liquids, magneto-optic composites, and contrast agents for medical diagnostics, were developed by specific surface functionalization of the barium hexaferrite NPLs. Our aim was to amino-functionalize the NPLs' surfaces towards new materials and applications.

Oxidation of Iodine to Dihaloiodate(I) Salts of Amines With Hydrogen Peroxides and Their Crystal Structures.

Herein we report a general preparation of dihaloiodate salts of heterocyclic amines (tertiary and quaternary) with sterically accessible and hindered nitrogen atom. A number of such compounds were prepared from preformed HICl or HIBr formed by the reaction of corresponding hydrogen halide, iodine and HO. The salts of 1,4-diazabicyclo[2.