Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry

✍ Scribed by Carlos A. Stortz; María C. Matulewicz; Alberto S. Cerezo

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 587 KB
• Volume: 111
• Category: Article
• ISSN: 0008-6215
• DOI: 10.1016/0008-6215(82)85004-0

✦ Synopsis

The gas-liquid-chromatographic retention-times and the mass-spectral features of partially methylated D-galactononitrile acetates are reported. Distinctive fragmentation of each of the mono-O-methyl derivatives allows their identification, and the results are applicable to the same substituted derivatives of the other aldohexoses. A new fragmentation-pathway, typical of the acetylated and the O-acetyl-O-methylaldononitriles, is proposed in order to justify previously unexplained fragments. This fragmentation competes with the known ones in derivatives that do not carry vicinal methoxyl groups.