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Mass Spectrometry of Some Unsaturated Monosaccharides arid Their Peracetyl Derivatives

V. Kováčik, V. Bílik, and S. Kučár

Institute of Gliemistry, Slovak Academy of Sciences, Bratislava 9

 

Abstract: The fragmentation of D-arabinal, D-xylal, D-galactal, D-glucal, ethyl-2,3-dideoxy-α,D-erythro-hex-2-enopyranoside, their O-deuterated analogues and peracetyl derivatives was studied. The fragmentation of free and peracetylated 1,2-unsaturated monosaccharides differs significantly from that of ethyl-2,3-dideoxy-α,D-erythro-hex-2-enopyranoside and its peracetyl derivative. Characteristic differences were found when comparing quantitatively the spectra of stereoisomers of 1,2-unsaturated monosaccharides with hydroxy or acetyl groups in cis and trails position at carbon atoms Сз and C4. Fragmentation mechanisms of the studied compounds are suggested and discussed in this paper.

Full paper in Portable Document Format: 241a52.pdf

 

Chemical Papers 24 (1) 52–58 (1970)

Thursday, September 23, 2021

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