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Mass Spectral Fragmentation Study of Substituted 1,3-Diphenyl- 2-pyrazolines

D. Srzić ; »Ruder Boskovic« Institute, 41001 Zagreb, Croatia, Yugoslavia
L. Klasinc ; Ruder Boskovic« Institute, 41001 Zagreb, Croatia, Yugoslavia
W. Seitz ; Kernforschungszentrum Karlsruhe, Institute fur Radiochemie, 7500 Karlsruhe, Postfach 3640, Federal Republic of Germany
H. Gusten ; Kernforschungszentrum Karlsruhe, Institute fur Radiochemie, 7500 Karlsruhe, Postfach 3640, Federal Republic of Germany

Sažetak

The electron impact induced fragmentation of twenty two 1,3-
-diphenyl-2-pyrazolines mono-, di- and trisubstituted in one or in
both phenyl rings was studied by deuterium labelling, high and
low resolution mass spectrometry, and ion kinetic energy spectroscopy.
The fragmentation patterns are discussed taking into account
especially the nature of the substituent and the position of substitution.
The results, compared with those for the unsubstituted compound,
showed that in general the phenyl ring substitution does
not affect its fragmentation. The formation of stable quinoid-type
ions directs many fragmentation pathways of methoxy substituted
compounds.

Ključne riječi

Hrčak ID:

194613

URI

https://hrcak.srce.hr/194613

Datum izdavanja:

5.5.1980.

Posjeta: 475 *