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Rearrangements in the electron‐impact induced fragmentation of some β‐aroyl‐α‐methylpropionic acids
Author(s) -
Buurmans H. M. A.,
Van de Graaf B.,
Kieboom A. P. G.
Publication year - 1971
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210050907
Subject(s) - fragmentation (computing) , hydrogen , ion , chemistry , ring (chemistry) , electron , electron ionization , hydrogen ion , photochemistry , medicinal chemistry , organic chemistry , physics , computer science , quantum mechanics , ionization , operating system
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 [ArCOOH 2 ] + , is favoured by electron‐withdrawing substituents in the aromatic ring.