Quantitative NMR spectrometry of phase-transfer catalysts. Part 1. Determination of Extraction Constants and Water of Hydration

Raphael Bar; Liliana Karpuj-Bar; Yoel Sasson; Jochanan Blum

doi:10.1016/0003-2670(83)80020-8

Quantitative NMR spectrometry of phase-transfer catalysts. Part 1. Determination of Extraction Constants and Water of Hydration

Raphael Bar^*
, Liliana Karpuj-Bar
, Yoel Sasson
, Jochanan Blum

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Proton magneticf resonance spectrometry was applied for evaluation of the distribution ratios and apparent extraction constants of tetraalkylammonium and tetraalkylphosphonium salts in two liquid-phase systems. Triethylbenzyl- and tetrabutylammonium chloride in dichloromethane and chlorobenzene, respectively, were shown to be salted out in the presence of aqueous sodium hydroxide solutions. ¹H-n.m.r. spectrometry was also used to determine the degree of hydration of quaternary onium salts in two-phase systems. The results were compatible with those obtained by the Karl Fischer method.

Original language	English
Pages (from-to)	203-209
Number of pages	7
Journal	Analytica Chimica Acta
Volume	154
Issue number	C
DOIs	https://doi.org/10.1016/0003-2670(83)80020-8
State	Published - 1983

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10.1016/0003-2670(83)80020-8

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title = "Quantitative NMR spectrometry of phase-transfer catalysts. Part 1. Determination of Extraction Constants and Water of Hydration",

abstract = "Proton magneticf resonance spectrometry was applied for evaluation of the distribution ratios and apparent extraction constants of tetraalkylammonium and tetraalkylphosphonium salts in two liquid-phase systems. Triethylbenzyl- and tetrabutylammonium chloride in dichloromethane and chlorobenzene, respectively, were shown to be salted out in the presence of aqueous sodium hydroxide solutions. 1H-n.m.r. spectrometry was also used to determine the degree of hydration of quaternary onium salts in two-phase systems. The results were compatible with those obtained by the Karl Fischer method.",

author = "Raphael Bar and Liliana Karpuj-Bar and Yoel Sasson and Jochanan Blum",

year = "1983",

doi = "10.1016/0003-2670(83)80020-8",

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AU - Bar, Raphael

AU - Karpuj-Bar, Liliana

AU - Sasson, Yoel

AU - Blum, Jochanan

PY - 1983

Y1 - 1983

N2 - Proton magneticf resonance spectrometry was applied for evaluation of the distribution ratios and apparent extraction constants of tetraalkylammonium and tetraalkylphosphonium salts in two liquid-phase systems. Triethylbenzyl- and tetrabutylammonium chloride in dichloromethane and chlorobenzene, respectively, were shown to be salted out in the presence of aqueous sodium hydroxide solutions. 1H-n.m.r. spectrometry was also used to determine the degree of hydration of quaternary onium salts in two-phase systems. The results were compatible with those obtained by the Karl Fischer method.

AB - Proton magneticf resonance spectrometry was applied for evaluation of the distribution ratios and apparent extraction constants of tetraalkylammonium and tetraalkylphosphonium salts in two liquid-phase systems. Triethylbenzyl- and tetrabutylammonium chloride in dichloromethane and chlorobenzene, respectively, were shown to be salted out in the presence of aqueous sodium hydroxide solutions. 1H-n.m.r. spectrometry was also used to determine the degree of hydration of quaternary onium salts in two-phase systems. The results were compatible with those obtained by the Karl Fischer method.

UR - https://www.scopus.com/pages/publications/0013192162

U2 - 10.1016/0003-2670(83)80020-8

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JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

IS - C

ER -

Quantitative NMR spectrometry of phase-transfer catalysts. Part 1. Determination of Extraction Constants and Water of Hydration

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