Cetylpyridinium bromide-based microemulsions as media for the hydrolysis of phosphorus acids esters in the presence of primary amines

Mirgorodskaya, A. B.; Kudryavtseva, L. A.; Zuev, Yuri F.; Idiyatullin, B. Z.; Fedotov, V. D.

doi:10.1070/mc2000v010n05abeh001252

Cited by 2 publications

(1 citation statement)

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“…Microemulsions on the basis of the cationic surfactants cetyltrimethylammonium bromide (CTAB) or cetylpyridinium bromide (CPB) have been extensively used as the medium for organic reactions [4,5], as the hosts for enzymes [6,7] and nucleic acids [8], andas microreactors to perform the self-replication of oligonucleotides [9]. The system CPB-n-alcohol-n-alkane-water is stable and transparent in a wide range of the water-to-oil ratio providing its utilization as medium for different organic and bioorganic reactions.…”

Section: Introductionmentioning

confidence: 99%

Effects of solubilized dodecylamine on the microstructure of cetylpyridinium bromide-n-butanol-hexane-water system studied by pulsed-gradient spin echo NMR and ESR spin label methods

et al. 2003

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The effect of solubilized dodecylamine (DDA) on the structure of the cetylpyridinium bromide-n-butanol-hexane-water microemulsions has been studied by the Fourier-transform pulsed-gradient spin-echo ~H nuclear magnetic resonance and the electron spin resonance spin label method. The sample compositions were chosen to examine three different microemulsion structures: oil-in-water, water-in-oil and bicontinuous. In all systems the DDA mo|ecules are shown to be incorporated into the oil-water interface, resulting in essential changes in the microemulsion structure. In the micellar systems the DDA emergence in the interface causes an increase of the micelle size and a redistribution of butanol and water between micelle and bulk phases. In the oil-in-water mir of amine-containing systems the quantity of micellized butanol and water decreases. In the water-in-oil microemulsions the introduction of DDA leads to an increase of butartol and water involved in the micelle formation. The redistribution of butanol and water between polar and organic phases in the microemulsions would be expected to cause changes in the bicontinuous structure.

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