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Mass Spectrometric Investigations of Phenylacetic Acid Derivatives, III: Fragmentation of meta- and para-substituted Phenylacetamides after Electron Impact
Lee, D.-U., Mayer, K. K. and Wiegrebe, Wolfgang (1988) Mass Spectrometric Investigations of Phenylacetic Acid Derivatives, III: Fragmentation of meta- and para-substituted Phenylacetamides after Electron Impact. Archiv der Pharmazie 321, pp. 315-320.Date of publication of this fulltext: 07 Jul 2010 05:12
Article
DOI to cite this document: 10.5283/epub.15691
Abstract
The electron impact induced fragmentations of m- and p-substituted phenylacetamides and N,N-dimethyl-phenylacetamides 1-14 were investigated and compared with the o-analogues. A l l m- and p-substituted amides yield molecular ions with high relative intensities which do not lose their meta- and para-substituents. Loss of HNCO from M + * is dominant in the prim, amides, whilst for the tert. ...
The electron impact induced fragmentations of m- and p-substituted phenylacetamides
and N,N-dimethyl-phenylacetamides 1-14 were investigated
and compared with the o-analogues. A l l m- and p-substituted amides
yield molecular ions with high relative intensities which do not lose their
meta- and para-substituents. Loss of HNCO from M + * is dominant in the
prim, amides, whilst for the tert. amides the classical benzyl cleavage is the
most favourable fragmentation pathway.
Die Elektronenstoß-induzierten Fragmentierungen der m- und p-substituierten
Phenylacetamide bzw. N,N-Dimethyl-phenylacetamide 1-14 wurden
untersucht und mit dem Verhalten ihrer o-substituierten Analogen
verglichen. Alle m- und p-substituierten Amide zeigen M + ' mit hoher relat.
Intensität und spalten die m- bzw. p-Substituenten nicht ab. Die prim.
Amide verlieren bevorzugt H N C O aus M + " , während in den tert. Amiden
klassische Benzylspaltung vorherrscht.
Involved Institutions
Details
| Item type | Article |
| Journal or Publication Title | Archiv der Pharmazie |
| Publisher: | John Wiley & Sons |
|---|---|
| Volume: | 321 |
| Page Range: | pp. 315-320 |
| Date | 1988 |
| Institutions | Chemistry and Pharmacy > Institute of Pharmacy > Alumni or Retired Professors > Prof. Wiegrebe |
| Dewey Decimal Classification | 500 Science > 540 Chemistry & allied sciences |
| Status | Published |
| Refereed | Yes, this version has been refereed |
| Created at the University of Regensburg | Unknown |
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-156911 |
| Item ID | 15691 |
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