A simple and rapid method of reversed-phase ion-pair high-performance liquid chromatography (HPLC) with UV-detection on a common C(18) column in an isocratic mode with the addition of tetrabutylammonium phosphate for the separation of polyprenyl phosphate oligomerhomologues has been developed. The method was successfully applied to assay the composition of polyprenyl phosphates obtained from p...

OBJECTIVE To critically evaluate and summarize available information on the safety of potassium bromide in dogs. DESIGN Systematic review. SAMPLE 111 references reporting safety information relevant to potassium bromide published between 1938 and 2011. PROCEDURES PubMed searches without date limitations were conducted with the terms "potassium bromide" and "sodium bromide" in December 200...

Sulfonyl radicals generated from sulfonylhydrazides by the Bu(4)NI-tert-butyl hydroperoxide (TBHP) catalysis system underwent addition to a variety of α-methyl styrene derivatives to give the corresponding allylic sulfones. This selective allylic sulfonylation is metal-free, operationally simple, and environmentally friendly.

Two anionic iridium complexes [(R-ppy)2Ir(O^N)]TBA with R-ppy = 2-phenylpyridine or 4,5'-dimethyl-2-phenylpyridine, O^N = dianionic form of orotic acid and TBA = tetrabutylammonium have been synthesised and fully characterised by UV-Vis, emission, IR, NMR and cyclic voltammetric studies. These cyclometallated luminescent complexes containing a dianionic bidentate ancillary ligand show bright em...

In the title compound, C(12)H(24)N(+)·Br(-), both cyclo-hexane rings adopt the usual chair conformation. The cation and anion are linked by N-H⋯Br hydrogen bonds into a linear chain running along the c axis.