TY - JOUR
T1 - Heterocyclic [4+ + 2] cycloadditions
T2 - The reactivity of pyridinium salts with electron-rich olefins
AU - Falck, J R
AU - Wittenberger, Steven J.
AU - Rajapaksa, D.
AU - Mioskowski, Charles
AU - Boubia, Benaissa
PY - 1990
Y1 - 1990
N2 - The N-(2,4-dinitrophenyl) salts of N,N-diethylnicotinamide and ethyl nicotinate undergo [4+ + 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.
AB - The N-(2,4-dinitrophenyl) salts of N,N-diethylnicotinamide and ethyl nicotinate undergo [4+ + 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.
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M3 - Article
AN - SCOPUS:37049076668
SN - 1472-7781
SP - 413
EP - 414
JO - Journal of the Chemical Society, Perkin Transactions 1
JF - Journal of the Chemical Society, Perkin Transactions 1
IS - 2
ER -