Synthesis of spiro-compounds: use of diselenoacetals for generation of quaternary centres by alkylation and radical cyclization
- 1 January 1985
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 17,p. 1205-1207
- https://doi.org/10.1039/c39850001205
Abstract
Ketones are readily converted viathe corresponding diphenyl diselenoacetals (2) into selenides (5) which undergo radical 5-exo cyclization to spiro-compounds (7) on treatment with triphenyltin hydride and azoisobutyronitrile; an analogous sequence serves for the preparation of spiro-lactones (12).Keywords
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