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Free radical cyclizations of terminal alkynes with oxime ethers

✍ Scribed by Eric J. Enholm; J.A. Burroff; Luz M. Jaramillo

Publisher
Elsevier Science
Year
1990
Tongue
French
Weight
238 KB
Volume
31
Category
Article
ISSN
0040-4039

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✦ Synopsis

Abstrack Abenzyloximeethertetheredtoaterminal~eefficientlyundergoesafreeradical hydmstannylation reaction to afford five-and six-m ringsbe&ngaprotecMamineandavinyl stannane functionality. These products wcrc subsequently protiodestannylated to obtain the unsubstituted exo-methylene compounds.

Free radical reactions are germane to practical synthetic construction and this has led to their rapid

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Radical cyclization of Ξ²-allenic oxime e
Radical cyclization of Ξ²-allenic oxime ethers
✍ J. Hatem; C. Henriet-Bernard; J. Grimaldi; R. Maurin πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 French βš– 145 KB

p-alIenic O-methyl oximes undergo a free radical hydrostannylation reaction to afford cyclopentenes bearing a protected amine group and a vinyl stannyl fonction. These compounds were destannylated to yield the com3ponding cyclopentenes.