128791-98-0Relevant academic research and scientific papers
Heterocyclic + + 2> Cycloadditions: The Reactivity of Pyridinium Salts with Electron-rich Olefins
Falck, J. R.,Wittenberger, Steven J.,Rajapaksa, D.,Mioskowski, Charles,Boubia, Benaissa
, p. 413 - 414 (2007/10/02)
The N-(2,4-dinitrophenyl) salts of N,N-diethylnicotinamide and ethyl nicotinate undergo + + 2> cycloaddition with enol ethers at room temperature, providing the first examples of Bradsher cyclization by monocyclic quaternary aza-aromatics; other derivatives and salts of pyridine are inert under these conditions.
