ISSN:
0306-042X
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The in-beam electron ionization (EI) spectra of quaternary ammonium salts of dextromethorphan and piperidine consist of peaks arising both from thermal degradation products and from the fragmentation of the molecular cation [R4N]+. Mass-analysed ion kinetic energy and ion kinetic energy spectra indicate that several major ions believed to be thermally induced before EI are also produced directly from [R4N]+ fragmentation. However, the contribution of the direct fragmentation of [R4N]+ upon EI is small in comparison to that of the thermal degradation products. This behavior was observed in the conformationally flexible and rigid piperidinium rings studied.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bms.1200111007
