Electrospray Ionization Mass Spectrometric Analysis of Highly Reactive Glycosyl Halides

Bokros, Attila; Bánfi, Annamária; Kupihár, Zoltán; Kele, Zoltán; Illyés, Tünde Zita; Szolomájer, János; Kovács, Lajos

doi:10.3390/molecules17078351

Cited by 2 publications

(1 citation statement)

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“…In fact, LiCl used with reactive compounds favors ionization as an adduct-forming agent without hydrolysis and decomplexation events commonly observed in acidic medium. 19 Surprisingly, the addition of LiCl to the methanolic solution of ws of 1 obtained by the reaction of Method A gives rise to the ion [Ca(OMe) 2 (MeOH) + H + ] at m/z 135 and the lithiated product is completely undetectable.…”

Section: Resultsmentioning

confidence: 96%

Study of Challenging Calcium Alkoxides in Solution by Electrospray Ionization Mass Spectrometry (Part 1)

Peruzzo

Chiurato

Tomasin

et al. 2013

Eur J Mass Spectrom (Chichester)

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Electrosprayionization was applied on calcium altkoxides studying the mostsuitableoperativeconditions for their detection/identification. To reach this aim, calcium methoxide and ethylate were obtained by two different synthetic pathways, in order to understand their possible different aggregation states. The reaction mixture shows the presence of a supernatant and of a precipitate poorly soluble in most organic solvents. The purpose of this preliminary study is to understand the qualitative differences between the precipitated species and the ones in solution by analyzing both of them with the same analytical method. The electrospray ionization (ESI) operating conditions (voltages, temperatures, solvents) allow not only the detection of single species but also the study of clusters present in solution. Particular attention was paid to establishing the role of ESI conditions in the formation of the detected species. Experiments performed at different sprayer voltages (1 kV, 2kV, 3 kV and 4 kV) proved that ESI does not perturbate the equilibria present in the original solution, demonstrating that the technique can be a useful tool to achieve information on this class of compounds.

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Section: Resultsmentioning

confidence: 96%