For example, the addition of dibromocarbene to cis-2-butene yields cis-2,3-dimethyl-1,1-dibromocyclopropane whereas addition of dibromocarbene to the trans isomer exclusively yields the trans cyclopropane.
Another example is disrotatory ring closing reaction trans-cis-trans-2,4,6-octatriene to cis-dimethylcyclohexadiene.
- Skell, P.S. and Garner, A.Y. Journal of the American Chemical Society. 78, 3409 (1956)it:Stereospecificità
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