ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

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)