Features of the Identification of Trialkyl Phosphites in Reaction Mixtures and Their Characterization by Gas Chromatography–Mass Spectrometry

Зенкевич, И. Г.; Nosova, Vlada E.

doi:10.1134/s1061934819130124

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…For differentiation of dialkyl phosphonates ( I ) and trialkyl phosphites ( II ) in reaction mixtures (Equation ), we used the data for reaction mixtures containing dialkyl phosphites only (Equation ) . The database was used to identify non‐phosphorus constituents of reaction mixtures.…”

Section: Methodsmentioning

confidence: 99%

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Comparative gas chromatographic/mass spectrometric characterization of di‐ and trialkyl phosphites

Зенкевич

Nosova

2019

Rapid Comm Mass Spectrometry

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Rationale: Homologous series of alkyl esters of phosphorus-containing acids, namely, dialkyl phosphonates (synonym: dialkyl phosphites) and trialkyl phosphites, were characterized by electron ionization (EI) mass spectra and gas chromatographic retention indices (GC RI) on semi-standard non-polar stationary phases. It is confirmed that GC/MS characterization of any sets of homologues should not be restricted to independent registration of these analytical parameters. Their joint processing in the form of so-called homologous increments of GC RIs means, firstly, a novel way of evaluating the chromatographic polarity of analytes and, secondly, a new algorithm for the prediction of their molecular weights if no peaks of molecular ions are registered in the mass spectra. Methods:A standard GC/MS technique, including determination of GC RIs on semi-standard nonpolar stationary phases in temperature-programmed regime and electron ionization (EI) mass spectra was used.Results: A total of 31 dialkyl phosphonate homologues and 37 trialkyl phosphite homologues were characterized by EI mass spectra and GC RIs for the first time.Joint processing of these analytical parameters allows the calculation of so-called homologous increments of GC RIs, which are useful parameters for evaluating the chromatographic polarity of analytes and predicting their molecular weights.Conclusions: GC/MS characterization of any sets of homologues should not be restricted to independent registration of the mass spectra and chromatographic retention parameters. Their joint processing in the form of so-called homologous increments of GC retention indices means, firstly, a novel way of evaluating the chromatographic polarity of analytes and, secondly, a new algorithm for predicting their molecular weights.

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Section: Methodsmentioning

confidence: 99%

“…The database was used to identify non‐phosphorus constituents of reaction mixtures. The mass spectra of all dialkyl and trialkyl phosphonates in tabulated form are presented in previous publications . Based on these references, the mass spectra of several selected compounds of each series are tabulated in section 3.…”

Section: Methodsmentioning

confidence: 99%

Comparative gas chromatographic/mass spectrometric characterization of di‐ and trialkyl phosphites

Зенкевич

Nosova

2019

Rapid Comm Mass Spectrometry

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Synthesis and characterization of new highly fluorinated phosphoramidates bearing different alkylamino groups

Argoubi,

Sanhoury,

Zerough

et al. 2024

Synthetic Communications

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General procedure for the synthesis of fluorinated phosphoramidates from dichlorophosphoramidates Cl2P(O)NHR (Method A):The dichlorophosphoramidate (1 equiv., 4.46 mmol) was dissolved in 10 mL of anhydrous diethyl ether and cooled to 0°C, followed by addition of a solution of fluorinated alcohol (2 equiv., 8.93 mmol), triethylamine (2 equiv., 8.93 mmol), and 15% DMAP in 15 mL of anhydrous diethyl ether.After addition, the temperature was raised to room temperature and then refluxed for 48 hours. Bis(2,2,2-trifluoroethyl) propylphosphoramidate (7)

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Specific Features of the Gas Chromatography–Mass Spectrometry Identification of Monoalkyl Phthalates

Зенкевич

2020

J Anal Chem

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Features of the Identification of Trialkyl Phosphites in Reaction Mixtures and Their Characterization by Gas Chromatography–Mass Spectrometry

Cited by 4 publications

References 13 publications

Comparative gas chromatographic/mass spectrometric characterization of di‐ and trialkyl phosphites

Comparative gas chromatographic/mass spectrometric characterization of di‐ and trialkyl phosphites

Synthesis and characterization of new highly fluorinated phosphoramidates bearing different alkylamino groups

Specific Features of the Gas Chromatography–Mass Spectrometry Identification of Monoalkyl Phthalates

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