The use of U.V. absorption spectra for the determination of configurations of some aromatic oximes

Abstract

Abstract The U.V. absorption spectra of a series of benzophenone oximes are discussed. Notwithstanding relatively small differences in absorption of the isomers, incontestable conclusions as regards configurations can be drawn, even if only one of the conceivable isomers is available. The results agree with what might be expected on the assumption that the Beckmann rearrangement proceeds via an anti ‐migration.