TY - JOUR
T1 - An unprecedented ortho effect in mass spectrometric fragmentation of even-electron negative ions from hydroxyphenyl carbaldehydes and ketones
AU - Attygalle, Athula
AU - Ruzicka, Josef
AU - Varughese, Deepu
AU - Sayed, Jafri
PY - 2006/7/3
Y1 - 2006/7/3
N2 - 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.
AB - 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.
KW - Collision-induced dissociation (CID)
KW - ESI-MS
KW - Hydroxyacetophenone
KW - Hydroxybenzaldehyde
KW - Negative-ion mass spectrometry
KW - Ortho effect
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U2 - 10.1016/j.tetlet.2006.04.147
DO - 10.1016/j.tetlet.2006.04.147
M3 - Article
AN - SCOPUS:33744547329
SN - 0040-4039
VL - 47
SP - 4601
EP - 4603
JO - Tetrahedron Letters
JF - Tetrahedron Letters
IS - 27
ER -