New Optically Active -Butylarylthiophosphinic Acids and Their Selenium Analogues as the Potential Synthons of Supramolecular Organometallic Complexes: Syntheses and Crystallographic Structure Determination.

The aim of the research described in this publication is two-fold. The first is a detailed description of the synthesis of a series of compounds containing a stereogenic heteroatom, namely the optically active -stereogenic derivatives of -butylarylphoshinic acids bearing sulfur or selenium. The second is a detailed discussion dedicated to the determination of their structures by an X-ray analysis.

Microbiologically Pure Cotton Fabrics Treated with Tetrabutylammonium OXONE as Mild Disinfection Agent.

The microbiological purity of textiles plays a pivotal role in the use of textiles, especially in hospitals and other medical facilities. Microbiological purity of cotton fabric was achieved by a new disinfection method using tetrabutyloammonium OXONE (TBA-OXONE) before washing. As a result of the disinfection, the cotton fabric became microbiologically pure, despite the markedly decreased washing time with respect to the widely used standard procedure.

High-performance liquid chromatographic enantioseparation of N-aryl-thioureidoalkylphosphonates and thiourylenedi(alkylphosphonates) on polysaccharide-based chiral stationary phases.

The first successful enantioseparation of representative O,O-diphenyl-N-arylthioureidoalkylphosphonates, (±)-Ptc-Val (OPh) & (±)-Ptc-Leu (OPh) and thiourylenedi(isobutyl phosphonate), Tcm[Val (OPh) ] on analytical and semipreparative scale was achieved by high-performance liquid chromatography using polysaccharide-based chiral stationary phases (CPs). Atc-AA (OPh) was obtained using modified tricomponent condensations of the corresponding aldehydes, N-arylthiourea and triphenyl phosphite whereas Tcm[Val (OPh) ] by the condensations of aldehydes, thiourea, and triphenyl phosphite. The prepared, racemic (±)-Atc-AA (OPh) [(±)-Ptc-Val (OPh) , (±)-Ptc-Leu (OPh) , (±)-Ptc-Pgly (OPh) and (±)-Ntc-Pgly (OPh) ] and racemic (±)-Tcm[AA (OPh) ] [(±)-Tcm[Nva (OPh) ] & (±)-Tcm[Val (OPh) ] ] were adequately characterized and used for chromatographic separations on high-performance liquid chromatography-chiral stationary phases.