Conversions of N-Vinylpyridinium Cations into Tricyclic Cage Compounds

Article abstract of DOI:10.1021/jo00177a013

1-Allyl-2,4,6-trimethyl- and 1-allyl-2,4,6-triphenylpyridinium cations are isomerized by mild alkali into the corresponding 1-propenylpyridinium cations.Strong base converts the latter and 1-vinyl-2,4,6-triphenylpyridinium cation salts into oxazatricyclononene isomers of the quaternary hydroxides.The elucidation of the structure and further transformations of the cage compounds are described.