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Chemical & pharmaceutical bulletin

Regioselective intramolecular [3+2] annulation of allene-nitrones.


PMID 22382420

Abstract

The regioselective intramolecular 1,3-dipolar cycloaddition of the phenylsulfonylallene-nitrone derivatives has been developed. This reaction showed that the distal double bond of the allene exclusively reacted with the nitrone group to produce the bicyclic isoxazolidine derivatives regardless of the substitution pattern on the allenyl moiety.

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294985
Allene, ≥95%
C3H4