Covalent adducts from 1,3-disubstituted pyridinium salts and piperidine
作者:F. Micheletti Moracci、B. Di Rienzo、S. Tortorella、F. Liberators
DOI:10.1016/s0040-4020(01)93695-6
日期:1980.1
isolated from the reactionbetween piperidine and pyridiniumsalts 1a-f. 3a-f are stable both in the solid state and in apolar solvents, whereas their fast dissociation back to piperidine and pyridinium ions occurs in aqueous solution. The latter, in the alkaline environment produced by the amine, yields the correspondent pseudobases, which are key intermediates of the subsequent reactions. For instance