TY  - JOUR
AB  - Metastable (3-phenyl-2-propynyl)benzenium ions, generated by electron impact induced fragmentation from the appropriately substituted 1,4-dihydrobenzoic acid, react by loss of ·CH3 and C6H6. The study of deuterated derivatives reveals that hydrogen/deuterium exchanges involving all hydrogen and deuterium atoms precede the fragmentations. The results suggest a skeletal rearrangement by electrophilic ring-closure reactions giving rise to protonated phenylindene and protonated 9,10-methano-9,10-dihydroanthracene prior to the elimination of C6H6 and ·CH3, respectively. A study of isomeric [C15H13]+ ions by collision-induced decomposition and by deuterium labelling shows that these ions interconvert by hydrogen migrations and skeletal rearrangements.
DA  - 1985
DO  - 10.1002/oms.1210200908
LA  - eng
IS  - 9
M2  - 572
PY  - 1985
SN  - 0030-493X
SP  - 572-577
T2  - Organic Mass Spectrometry
TI  - Gas phase reactions of protonated 1,3-diphenylpropyne and some isomeric [C15H13]+ ions
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-17742162
Y2  - 2024-11-25T01:14:26
ER  -