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A Synthesis of spiro[oxindole-3,2′-bicyclo(2,2,1)heptene] derivatives

✍ Scribed by C.G. Richards; M.S.F. Ross

Publisher: Elsevier Science
Year: 1968
Tongue: French
Weight: 160 KB
Volume: 9
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)99140-3

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✦ Synopsis

A study of isatinylidene derivatives (I) as the dienophile component of a Diels-Alder reaction was undertaken with the object of obtaining spirooxindole derivatives of the type (II) of value in the synthesis of alkaloids of the Gelsemium species.

No previous synthesis of this nature appears to have been reported although, concurrently with this work, Johnson and co-workers (1) have reported the use of isatinylidene acetone (Ia) as a diene, and also its dimerisation involving participation as diene and dienophile.

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