endo-Selectivity in the Diels–Alder reactions of non-conjugated olefins
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 13,p. 420-421
- https://doi.org/10.1039/c39730000420
Abstract
The addition of cyclopentene, cis-but-2-ene, and cycloheptene to 2-benzopyran-3-one (1) and its 1-methyl-derivative gives mainly endo-adducts (2), and the addition of cyclopentene to (5) gives mainly the cis-ester (7)via the endo-transition state.Keywords
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