Ne. Shchepina et al., Ion-molecule reactions of pyridine with free tritiated phenyl cations generated by the nuclear chemical method, RADIOCHEMIS, 41(6), 1999, pp. 562-565
Ion-molecule reactions of a polydent nucleophile, pyridine, with tritiated
phenyl cations generated by the nuclear chemical method were studied. The r
esulting tritium-labeled products were identified and isolated, and the rea
ction pathways were considered. The major reaction is that of phenyl cation
with the heterocyclic nitrogen atom to give N-phenylpyridinium salts, In e
lectrophilic attack of phenyl cations at the pyridine ring, ortho and meta
substitutions prevail.