Synthese chiraler Liposomenbausteine mit <i>s</i>‐Triazin als verknüpfende Partialstruktur

Staatz, Irina; Roth, H. J.

doi:10.1002/jlac.198919890111

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…The acidic standard was prepared following a literature procedure. , To a solution of 1,2,4-triazole (207 mg, 3.00 mmol, 3.00 equiv) and triethylamine (416 μL, 3.00 mmol, 3.00 equiv) in 1,4-dioxane (5.0 mL) was added POCl 3 (91.1 μL, 1.00 mmol, 1.00 equiv) dropwise at 0 °C. The mixture was allowed to warm to room temperature and stirred for 15 min.…”

Section: Methodsmentioning

confidence: 99%

Further Insights into Structural Diversity of Phosphorus-Based Decomposition Products in Lithium Ion Battery Electrolytes via Liquid Chromatographic Techniques Hyphenated to Ion Trap-Time-of-Flight Mass Spectrometry

et al. 2019

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This study illustrates the high complexity of phosphorus-based decomposition products in thermally treated state-of-the-art lithium ion battery (LIB) electrolytes. Liquid chromatographic techniques hyphenated to ion trap time-of-flight mass spectrometry reveal 122 different organophosphate (OP) and organofluorophosphate (OFP) species, the majority of which are not reported in the literature so far. The application of hydrophilic interaction liquid chromatography and reversed-phase chromatography enables the investigation of the acidic as well as nonacidic spectrum of aging products. Furthermore, the generation of high structure certainty by consideration of (i) mass accuracy of the precursor ions and subsequent MS2/3 fragments, (ii) fragment intensity distribution in the mass spectra, and (iii) retention times in hydrophilic interaction liquid chromatography (HILIC) and reversed-phase (RP) separation allows a target analysis of further work in the LIB electrolyte context. In an ethyl methyl carbonate-based battery electrolyte, 82 OP compounds, 27 OFPs, and 13 cyclic O(F)Ps are identified. Additionally, the formation of 8-membered organo(fluoro)phosphate rings in lithium ion battery electrolytes is reported for the first time. Since the high toxic potential of organo(fluoro)phosphates has emerged interest in safety assessments of electrolytes, the knowledge of possibly formed substances supports further quantification approaches and toxicological assessments compared to nontarget investigations.

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Section: Methodsmentioning

confidence: 99%

Further Insights into Structural Diversity of Phosphorus-Based Decomposition Products in Lithium Ion Battery Electrolytes via Liquid Chromatographic Techniques Hyphenated to Ion Trap-Time-of-Flight Mass Spectrometry

et al. 2019

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ChemInform Abstract: Synthesis of Chiral Liposome Building Blocks with s‐Triazine as Linking Unit.

1989

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ChemInform Abstract A number of s-triazine derivatives are prepared with a view to developing a variable system of chiral amphiphiles for the study of the effect of chirality on the formation and properties of liposomes. These target amphiphiles, represented in the scheme by (III) and (VI), possess either one or two lipophilic chains and L-cysteine, L-serine or L-lysine as the hydrophilic moiety (permitting TLC determination of the optical purity). Only the cysteine derivatives with two alkyl chains, i.e. (VI), can be induced to form vesicles on sonication.

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Synthese und Aggregationsverhalten chiraler Cystein‐Amphiphile mit s‐Triazin als verknüpfende Partialstruktur

et al. 1989

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Es werden homologe Liposomenbausteine 3 mit L‐Cystein als chirale hydrophile Kopfgruppe synthetisiert. Als Verknüpfungseinheit zwischen Cystein und den lipophilen Alkylketten dient s‐Triazin. Mittels DSC‐ und Fluoreszenz‐Anisotropie‐Messungen lassen sich die Phasenübergangstemperaturen der Lipide bestimmen. Es kann gezeigt werden, daß eine den Phospholipiden analoge Relation zwischen Art und Länge der Ketten und der Phasenübergangstemperatur besteht. Einschlußversuche mit ionischen wasserlöslichen Farbstoffen ergeben Hinweise auf eine Interaktion der in Phosphatpuffer (pH = 7.0), gebildeten Vesikel mit kationischen, nicht jedoch mit anionischen hydrophilen Substanzen.

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Synthese chiraler Liposomenbausteine mit s‐Triazin als verknüpfende Partialstruktur

Cited by 3 publications

References 15 publications

Further Insights into Structural Diversity of Phosphorus-Based Decomposition Products in Lithium Ion Battery Electrolytes via Liquid Chromatographic Techniques Hyphenated to Ion Trap-Time-of-Flight Mass Spectrometry

Further Insights into Structural Diversity of Phosphorus-Based Decomposition Products in Lithium Ion Battery Electrolytes via Liquid Chromatographic Techniques Hyphenated to Ion Trap-Time-of-Flight Mass Spectrometry

ChemInform Abstract: Synthesis of Chiral Liposome Building Blocks with s‐Triazine as Linking Unit.

Synthese und Aggregationsverhalten chiraler Cystein‐Amphiphile mit s‐Triazin als verknüpfende Partialstruktur

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