1,3-cycloadditions of pyridinium N-aryli
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Rolf Huisgen; Robert Temme
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Article
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1999
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John Wiley and Sons
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English
โ 240 KB
๐ 2 views
The title compounds (5a: Ar โซืกโฌ C 6 H 5 , 5b: Ar โซืกโฌ 2-pyridyl) are 1,3-dipoles of the azomethine imine type; their 1,3-cycloadditions are accompanied by the loss of the pyridinium resonance energy. As a consequence, the interaction with electron-deficient ethylenes gives rise to cycloaddition/cyclo