## Abstract Interesting skeletal rearrangements, resulting in the formation of unexpected fragments, have been noticed in the mass spectra of aromatic thioamides of cyclic amines such as piperidine, morpholine and pyrrolidine. Suitable mechanisms, based on mass analysed ion kinetic energy spectra,
Mass spectral rearrangements in benzylidene hippuric esters
β Scribed by M. McCamish; J. D. White
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 404 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1076-5174
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β¦ Synopsis
Abstract
The mass spectra of a series of hippuric esters have been determined. A variety of novel rearrangements induced by the presence of a formed benzyl carbonium ion has been rationalized with the aid of high resolution measurements and isotopic and substituent labeling. An eight centered rearrangement is proposed for the observed transfer of oxygen from a nitro group to a double bond.
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