6533b7d4fe1ef96bd1263074

RESEARCH PRODUCT

Characterization of some isomeric benzophenones by their mass spectra

R. MartinIngo LüderwaldV. Böhmer

subject

Fragmentation (mass spectrometry)ChemistryFries rearrangementClinical BiochemistryMass spectrumOrganic chemistryGeneral Materials ScienceGeneral MedicineMedicinal chemistryFriedel–Crafts reactionMass spectrometricAnalytical Chemistry

description

Benzophenones have been described to undergo characteristic α-cleavage and rearrangement processes upon mass spectrometric fragmentation. Recently two series of new and isomeric benzophenones have been prepared from phenylbenzoates by Fries rearrangement or directly by Friedel Crafts acylation. It is shown that the above mentioned diagnostic fragmentation processes can be used to characterize the resulting isomeric ortho or para hydroxy and ortho or para methoxy benzophenones unambigously.

https://doi.org/10.1007/bf00480890