69586-29-4Relevant academic research and scientific papers
The Rearrangements of the Nitrones of Simple Cyclic Conjugated Ketones
Prager, Rolf H.,Raner, Kevin D.,Ward, A. David
, p. 381 - 387 (2007/10/02)
The ring expansions of N-methyl nitrones formed from cyclic conjugated ketones have been investigated.Low yields of cyclic amides were obtained.In general, the best conditions for the rearrangement involved using p-toluenesulfonyl chloride and polyphosphoric acid in tetrahydrofuran.The parent ketone and, in some cases, an N-aryl sulfonamide were also obtained; mechanisms for their formation are discussed.
