0000000001012006

AUTHOR

Galina Vavilina

showing 2 related works from this author

Collision-Induced Dissociation of Imidazolium-Based Zwitterionic Liquids

2009

Fragmentation pathways of some imidazolium based zwitterionic liquids—3-(3-alkyl-1-imidazolio)-propane sulfonates and 3-(2-methyl-3-alkyl-1-imidazolio)-propane sulfonates—have been studied by tandem electrospray mass spectrometry and collision-induced dissociation. The relative abundances of the lowest energy fragment ions depend on the length of the alkyl chain at the IIN of the imidazolium ring and the cone voltage. The first fragment ions originate from the scission of Cnon aromatic–N bond of compounds investigated, but with increasing collision energy, scission of C–C bonds occurs. Aggregates of the general formula [(M + H) x + (M) y]+ ( x;y = 1–2) formed. Methyl substituted zwitterion…

chemistry.chemical_classificationCollision-induced dissociationChemistryElectrospray ionizationGeneral MedicineMass spectrometryMedicinal chemistryAtomic and Molecular Physics and OpticsDissociation (chemistry)IonFragmentation (mass spectrometry)Organic chemistrySpectroscopyAlkylBond cleavageEuropean Journal of Mass Spectrometry
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Alkylation of ambident indole anion in ionic liquids

2007

AbstractAlkylation of indole salts in different ionic liquids is reported. Ionic liquids increase the alkylation reaction rate of ambident indole anion and reduce the effects of counter ions and/or additives, the alkylation reaction rates being independent of the presence of small amounts of protic solvents or water.

Indole testambident anionChemistryInorganic chemistryGeneral ChemistryAlkylationIonReaction rateionic liquidschemistry.chemical_compoundChemistryalkylation reactionsindoleIonic liquidMaterials ChemistryOrganic chemistryQD1-999Open Chemistry
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