2870-30-6Relevant articles and documents
New Triazole-Containing Branched Bis(dipeptidomimetic) - Switching from Self-Dimerization to Anion-Binding Properties
Chui, Tin-Ki,Chow, Hak-Fun
, p. 2807 - 2811 (2017)
A triazole-containing branched bis(dipeptidomimetic) 2 using l -lysine as a flexible branching unit was synthesized and characterized. The compound was found to form weak dimers (K dim = 19 M -1) in chloroform as shown by vapor pressure osmometry (VPO) and concentration-dependent 1 H NMR studies. On the other hand, the compound was capable of binding chloride and monobasic diethyl phosphate (DEP) in chloroform. Job plot analysis, MALDI-TOF mass spectrometry, and NMR titration studies revealed a 1:1 binding stoichiometry with good binding affinities (K a ≈ 640-780 M -1). Structural studies using ROESY NMR spectroscopy and molecular modelling on the 2 -DEP complex indicated the adoption of a helix-like conformation by the host with the guest situated near the branching juncture.
Cetyltrimethylammonium hydroperoxide: An efficient reagent for promoting phosphate ester hydrolysis
Toullec, Jean,Moukawim, Mohamed
, p. 221 - 222 (1996)
Cetyltrimethylammonium hydroperoxide solutions are easily prepared by mixing cetyltrimethylammonium hydroxide and hydrogen peroxide and are very efficient in promoting paraoxon (diethyl p-nitrophenyl phosphate) hydrolysis.
Predicting the hydrolytic breakdown rates of organophosphorus chemical warfare agent simulants using association constants derived from hydrogen bonded complex formation events
Chu, Dominique F.,Clark, Ewan R.,Ellaby, Rebecca J.,Hiscock, Jennifer,Pépés, Antigoni
, (2021/11/22)
Organophosphorus (OP) chemical warfare agents (CWAs) represent an ongoing global threat, through either purposeful environmental release or the need to dispose of historic stockpiles. This presents a need for the development of novel decontamination technologies. Due to the toxic nature and legal limitations placed on OP CWAs, the use of appropriate OP simulants that mimic the reactivity but not the toxicity of the agents themselves is vital to decontamination studies. Herein, we show that association constants derived from non-specific hydrogen bonded complexation events may be used as parameters within models to predict simulant reactivity. We also discuss the limitations that should be placed on such data.
Destruction of toxic organophosphorus and organosulfur pollutants by perpropionic acid: The first stable, industrial liquid water-miscible peroxyacid in decontamination
Lion, Claude,Da Conceicao, Louis,Hecquet, Gerard,Pralus, Christian,Requieme, Benoit,Schirmann, Jean-Pierre
, p. 1515 - 1518 (2007/10/03)
Use of commercial perpropionic acid (PPA), the first stable, industrial and water-miscible peroxyacid, allows the destruction of toxic organophosphorus and organosulfur compounds under micellar conditions. The destruction of paraoxon (O,O-diethyl O-p-nitrophenylphosphate), di-n-butyl sulfide and 2-chloro-2′-phenyldiethyl sulfide has been studied.