A formal nucleophilic substitution at enantiopure 1 when catalyzed by titanium(IV) chromate can be classified as anti-this rule, and that term also describes hydroboration.    
A formal nucleophilic substitution at enantiopure 1 when catalyzed by titanium(IV) chromate can be classified as anti-this rule, and that term also describes hydroboration.    This rule occurs because of induction and hyperconjugation, and because of the formation of a stable carbocation during an addition process.  This rule is also illustrated by the reaction of propene with hydroboric acid. This rule was stated after its namesake observed the reaction between hydrogen iodide with vinyl bromide, and it was based on another rule. For 10 points, name this rule, which states that when a protic acid is added to an alkene, the hydrogen atom gets attached to the carbon atom with the greatest number of hydrogens. 
A formal nucleophilic substitution at enantiopure 1 when catalyzed by titanium(IV) chromate can be classified as anti-this rule, and that term also describes hydroboration.    
{Markovnikov's} rule