Electron impact studies. Part XXXIX. Proximity effects in the mass spectra of aromatic carbonyl compounds containing adjacent methoxy-substituents
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society B: Physical Organic
Abstract
Peaks due to M– H2O are observed in the mass spectra of aromatic carbonyl compounds which contain an ortho(or peri) methoxy-substituent. This process is of diagnostic value for simple systems, but cannot be extended to those systems which have a large number of oxygen-containing substituents. The fragmentation has been studied by 2H and 18O labelling. The properties of the M– 18 fragment in the spectrum of o-methoxybenzaldehyde correspond to those of a benzofuran radical ion.Keywords
This publication has 0 references indexed in Scilit: