An unprecedented ortho effect in mass spectrometric fragmentation of even-electron negative ions from hydroxyphenyl carbaldehydes and ketones

被引：14

作者：

Attygalle, A ^{[1
]}

Ruzicka, J ^{[1
]}

Varughese, D ^{[1
]}

Sayed, J ^{[1
]}

机构：

[1] Stevens Inst Technol, Dept Chem & Biol Chem, Ctr Mass Spectrometry, Hoboken, NJ 07030 USA

来源：

TETRAHEDRON LETTERS | 2006年 / 47卷 / 27期

关键词：

ESI-MS; ortho effect; collision-induced dissociation (CID); negative-ion mass spectrometry; hydroxybenzaldehyde; hydroxyacetophenone;

D O I：

10.1016/j.tetlet.2006.04.147

中图分类号：

O62 [有机化学];

学科分类号：

070303 [有机化学]; 081704 [应用化学];

摘要：

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. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：4601 / 4603

页数：3

共 5 条

[1]

Ortho effects: A mechanistic study [J].