Investigation of unimolecular decomposition and isomerisation reactions of some metastable carboxonium ions in the gas phase
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society B: Physical Organic
- p. 1654-1658
- https://doi.org/10.1039/j29710001654
Abstract
The C3H5O+ cations generated from CH2 CH·CH(OH)CH3, CH2 CH·O·CH2·CH3, [graphic omitted] and CH3·[graphic omitted] have been shown to isomerise to the same structure or mixture of structures before fragmentation with a rate constant in the region 105–106 sec.–1. However, the C3H5O+ ion generated from CH3·CH2·CO2Me remains structurally distinct. Protonated carboxylic acid ions generated from the n-butyl esters of acrylic, crotonic, and propionic acids have been shown to remain distinct from isomeric ions before dehydration to the corresponding acylium ions in a metastable transition.Keywords
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