The Journal of Organic Chemistry

Photochemical transformations of small ring compounds. 92. Intramolecular dipolar cycloaddition reactions with vinylbiphenyl-substituted 1, 3-dipoles

A Padwa, H Ku, A Mazzu

Index: Padwa,A. et al. Journal of Organic Chemistry, 1978 , vol. 43, # 3 p. 381 - 387

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Citation Number: 18

Abstract

The formation of 5 from 4 is representative of the wellknown intramolecular cycloaddition of a nitrone to an olefin. 18J9 Numerous examples of this type of cycloaddition exist in the literat~ re. l~*~~ LeBel and co-workers have elegantly demonstrated the utility and synthetic scope of this intramolecular dipolar cycloaddition for the preparation of a variety of polycyclic isoxazolidines. 21 The exclusive formation of 5 is especially interesting in light of ...