Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization

Harig M, Kuck D (2020)
ARKIVOC: 9-19.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Harig, Marco; Kuck, DietmarUniBi
Abstract / Bemerkung
The electron ionization mass spectra of nine muconic acid dimethyl esters that bear up to three muconate groups fused with a centropolycyclic di-, tri- and hexaquinane framework exhibit dominating fragmentation by loss of a methoxycarbonyl radical, (COOMe)-C-center dot, from the molecular radical cations, M center dot+. Pyrylio-annelated structures for the [M - COOMe](+) ions are postulated in analogy to literature reports on simple muconic acids esters. The congeners bearing two or three dimethyl muconate groups lose also two (COOMe)-C-center dot radicals after twofold ionization. The doubly charged fragment ions [M - 2 COOMe](2+) are proposed to contain two isolated pyrylium rings fused to the original tri- or hexaquinane core, thus representing polyaromatic distonic dications. [GRAPHICS] .
Stichworte
Muconic acid esters; cyclization; pyrylium ions; dications; polyquinane; derivatives; stereoisomers
Erscheinungsjahr
2020
Zeitschriftentitel
ARKIVOC
Seite(n)
9-19
ISSN
1551-7004
eISSN
1551-7012
Page URI
https://pub.uni-bielefeld.de/record/2945129

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Harig M, Kuck D. Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization. ARKIVOC. 2020:9-19.
Harig, M., & Kuck, D. (2020). Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization. ARKIVOC, 9-19. doi:10.24820/ark.5550190.p011.082
Harig, M., and Kuck, D. (2020). Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization. ARKIVOC, 9-19.
Harig, M., & Kuck, D., 2020. Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization. ARKIVOC, , p 9-19.
M. Harig and D. Kuck, “Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization”, ARKIVOC, 2020, pp. 9-19.
Harig, M., Kuck, D.: Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization. ARKIVOC. 9-19 (2020).
Harig, Marco, and Kuck, Dietmar. “Mass spectrometric fragmentation of di-, tri-, and hexaquinane-fused dimethyl muconates induced by single and double electron ionization”. ARKIVOC (2020): 9-19.

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