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Reactions of isoquinoline derivatives with pyridinium salts yielding 4-naphthylpyridines
作者:S. P. Gromov、M. V. Fomina
DOI:10.1023/b:rucb.0000037861.00184.82
日期:2004.4
ring occurs in the reactions of isoquinolinium salts with 4-methylpyridinium salts through the intermolecular transformation of the isoquinoline bicyclic system involving the methyl group of the pyridinium salt. The reaction occurs under the action of methylammonium sulfite in an aqueous medium on heating. This method provides ring transformation not only for isoquinolinium salts but even for unsubstituted
Abstract The rearrangement reaction of 1-alkyl-2-(benzoylmethyl)pyridinium iodides 3a–d, 6 in the presence of various nucleophiles leads to 2-alkylaminobenzophenone derivatives 4a–c. Best results were achieved with alkylammonium sulfites as recyclization reagents.