Absence of the McLafferty rearrangement ions in the tandem mass spectra of carboxylic acid esters
β Scribed by D. J. Harvey
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 194 KB
- Volume
- 28
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The fragmentation mechanisms of the six isomeric cyclohexeneβ1,2βdicarboxylic acids are discussed. Only the 1βcyclohexene acid, by virtue of the major sequential losses of H~2~O and CO~2~ from the molecular ion, is readily distinguishable from its isomers, all of whose mass spectra are
The positive and negative ion mass spectra of clausmarin A, a naturally occurring tetracyclic conmarin, have been studied. The base peaks in the positive and negative ion spectra correspond to the complementary ions at mlz 143 and mlz 255, respectively, formed by a rearrangement reaction. The fragme