regiospecifically
Regiospecificity is a concept in chemistry describing reactions that occur at a particular region of a molecule, yielding a single major product. The regiospecific process proceeds with such constraint that essentially only one regioisomer forms. Regioselectivity, by contrast, denotes a preference for one regioisomer over others among possible products; a reaction can be regioselective without being fully regiospecific if a minor amount of alternate regioisomers is produced.
Several factors influence regiospecific outcomes, including electronic effects, steric hindrance, directing groups, catalysts, and enzyme active
Common examples include hydroboration-oxidation of alkenes, which adds boron to the less substituted carbon and yields
Regiospecificity is typically reported using the regioisomeric ratio or the yield of the exclusive product, with