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Communication | Regular issue | Vol 20, No. 2, 1983, pp.201-203
Published online, 1st January, 1970
DOI: 10.3987/R-1983-02-0201
Intramolecuar 1,3-Dipolar Cycloaddition of 3-Phenylpropioloyloxyalkylpyridinium N-Imines

Yasuyoshi Miki, Michiko Konishi, Noriko Nishikubo, Toshihiko Yoshimaru, and Shoji Takemura

*Faculty of Pharmaceutical Sciences, Kinki University, 3-4-1, Kowakae, Higashi-Osaka 577-8502, Japan


Treatment of N-aminopyridinium salt (3a) with base in methanol gave unexpected product (4) but the salts (3b,c) in acetonitrile yielded normal adducts with 7- or 8-membered lactone (6b,c).