
TY  - JOUR
A1  - Macdonald, CG 
A1  - Shannon, JS 
T1  - Studies in Mass Spectrometry. II. Random Hydrogen Rearrangement in Aromatic Molecular Ions
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1962
VL  - 15
IS  - 4
SP  - 771
EP  - 785
KW  - 
UR  - https://doi.org/10.1071/CH9620771 
N2  - To provide data for investigations by, inter alia, mass-spectrometric methods into the deuterium exchange of the aromatic hydrogen of some coal fractions, a study was made which confirmed the occurrence of completely random hydrogen rearrangement prior to or during the elimination of C2H2 in the molecular ions of benzene-1,2,3-d3, benzene-l,3,5-d3, naphthalene-1,2,3,4-d4, naphthalene-1,4,5,8-d4, and phenanthrene-9,10-d2, and in the phenyl ions derived from o-bromobenzene-d, m-bromobenzene-d, and p-chlorobenzene-d, Similar but incomplete hydrogen rearrangement was found to occur in the molecular ion of carbazole-N-d prior to or during elimination of HCN. Such rearrangements, for which mechanistic considerations are presented, must be taken into account when the mass spectra of deuterium-substituted aromatic compounds are being interpreted. 
ER  -

