Rearrangements in the electron‐impact induced fragmentation of some β‐aroyl‐α‐methylpropionic acids
- 1 September 1971
- journal article
- research article
- Published by Wiley in Journal of Mass Spectrometry
- Vol. 5 (9) , 1081-1084
- https://doi.org/10.1002/oms.1210050907
Abstract
A complex rearrangement on electron‐impact for β‐aroyl‐α‐methylpropionic acids, involving both hydrogen and hydroxy migration followed by loss of carbon monoxide and allyl radical, is described and discussed. The rearrangement process, resulting in an ion [ArCOOH2]+, is favoured by electron‐withdrawing substituents in the aromatic ring.Keywords
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