Electron‐impact studies—L:  Skeletal‐rearrangement fragments in the mass spectra of diphenylpyrazoles and ‐isoxazoles | Zendy

Simons B. K. | Zendy; Kallury R. K. M. R. | Zendy; Bowie J. H. | Zendy

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Electron‐impact studies—L: Skeletal‐rearrangement fragments in the mass spectra of diphenylpyrazoles and ‐isoxazoles

Author(s) -

Simons B. K.,

Kallury R. K. M. R.,

Bowie J. H.

Publication year - 1969

Publication title -

organic mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 0030-493X

DOI - 10.1002/oms.1210020708

Subject(s) - mass spectrum , deuterium , labelling , chemistry , spectral line , electron ionization , cope rearrangement , stereochemistry , mass spectrometry , physics , organic chemistry , nuclear physics , ion , biochemistry , chromatography , astronomy , ionization

The mass spectra of all diphenylpyrazoles and ‐isoxazoles contain rearrangement peaks at m / e 165 [C 13 H 9 ] + . In addition, the spectra of 3,5‐diphenylisoxazoles contain peaks at m / e 180 [C 13 H 10 N] + , which are produced by specific phenyl migrations. The mechanisms of both rearrangement processes have been studied by deuterium labelling.

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