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The mechanism of electron impact-induced elimination of methanol from long chain methyl esters

โœ Scribed by Genevieve Wolff; Robert E. Wolff; James A. McCloskey

Publisher
Elsevier Science
Year
1966
Tongue
French
Weight
176 KB
Volume
7
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

The elimination of methanol is a ubiquitous process in the mass spectra of long chain hydroxy (l), alkoxy (1). branched (2, 3) and keto (1) acid methyl esters, which generally occurs from fragment ions formed by cleavage alpha to one of the above functional groups.

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Substituent effect and rearrangements in
Substituent effect and rearrangements in the electron-impact spectra of long chain esters of m-and p-methoxybenzoic acid
โœ Mitchell A. Winnik; P. Y. Y. Kwong ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 440 KB

## Abstract The mass spectra of eighteen nโ€alkyl estars of pโ€methoxybenzoic acid are examined. Few differences exist in the spectra of the corresponding para and meta isomers. We describe a new rearrangement, loss of OH from the molecular ion, whichis observed only in the para substituted isomkers.