Unimolecular and bimolecular transfer of N-substituents from pyridinium cations: Evidence for a clear mechanistic changeover期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Unimolecular and bimolecular transfer of N-substituents from pyridinium cations: Evidence for a clear mechanistic changeover

Authors:	Alan R Katritzky Giuseppe Musumarra Kumars Sakizadeh Sayed MM El-Shafie Bratislav Jovanovic

Institution:	School of Chemical Sciences, University of East Anglia, Norwich, NR4 7TJ France

Abstract:	$N$ -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 S_N1 and S_N2.

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