Title of article
An unprecedented ortho effect in mass spectrometric fragmentation of even-electron negative ions from hydroxyphenyl carbaldehydes and ketones
Author/Authors
Attygalle، نويسنده , , Athula and Ruzicka، نويسنده , , Josef and Varughese، نويسنده , , Deepu and Sayed، نويسنده , , Jafri، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2006
Pages
3
From page
4601
To page
4603
Abstract
A mass spectrometric peak for a carboxylate anion is observed in collision-induced dissociation (CID) mass spectra recorded from negative ions derived from ortho isomers of hydroxyphenyl carbaldehydes and ketones. For example, CID spectra of 2-hydroxy derivatives of benzaldehyde, acetophenone, propiophenone, isobutyrophenone, and pivalophenone show peaks at m/z 45, 59, 73, 87, and 101 for the formate, acetate, propionate, isobutyrate, and pivalate anions, respectively.
Keywords
ESI-MS , Negative-ion mass spectrometry , Ortho effect , Hydroxybenzaldehyde , Hydroxyacetophenone , Collision-induced dissociation (CID)
Journal title
Tetrahedron Letters
Serial Year
2006
Journal title
Tetrahedron Letters
Record number
1850928
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