In chemistry, a stereoselectivity is the property of a chemical reaction that yields an unequal mixture of stereoisomers from a single reactant. Stereoselectivity may be partial, where the formation of one stereoisomer is favoured over the other, or it may be total where only one stereoisomer is formed. An example is dehydrohalogenation of 2-iodo-butane which yields 80% trans-2-butene and 20% cis-2-butene.

See also

• Stereospecific
• Dynamic stereochemistry

References

• Bartsch, R.A.; Pruss, B.A.;Bushaw, B.A.; Wiegers, K.E. (1973). Journal of the American Chemical Society. 95, 3405

organic chemistry