Unimolecular and bimolecular transfer of N-substituents from pyridinium cations: Evidence for a clear mechanistic changeover |
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Authors: | Alan R. Katritzky Giuseppe Musumarra Kumars Sakizadeh Sayed M.M. El-Shafie Bratislav Jovanovic |
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Affiliation: | School of Chemical Sciences, University of East Anglia, Norwich, NR4 7TJ France |
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Abstract: | -Substituents in 2, 4, 6-triphenylpyridiniums are transferred to piperidine, morpholine and pyridine by unimolecular and/or bimolecular processes in chlorobenzene solution. These processes are quite distinct and afford no evidence for a mechanism intermediate between SN1 and SN2. |
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