https://www.selleckchem.com/pr....oducts/Hesperadin.ht
The activation energies of anti-additions are generally lower than those of the corresponding syn-additions, especially for hydrobromination. The relative reaction rate constants of the anti-additions are always larger than those of the corresponding syn-additions on the basis of dynamics treatment according to transition state theory. Thus, in the hydrohalogenations, aliphatic olefins always give anti-adducts as major products, while aromatic olefins produce syn-adducts as major products. The substituent-controlled mechanisms and st