Regioselectivity of Hydrogen Halide Addition Markovnikovs Rule

5 REGIOSELECTIVITY OF HYDROGEN HALIDE ADDITION MARKOVNIKOV S RULE 

In principle a hydrogen halide can add to an unsymmetrical alkene (an alkene in which the two carbons of the double bond are not equivalently substituted) in either of two directions. hi practice, addition is so highly regioselective as to be considered regiospecific. 

PROBLEM 6.3 Write the structure of the major organic product formed in the reaction of hydrogen chloride with each of the following  

SAMPLE SOLUTION (a) Hydrogen chloride adds to the double bond of 2-methyl-2-butene in accordance with Markovnikov s rule. The proton adds to the carbon that has one attached hydrogen, chlorine to the carbon that has none. 

An article in the December 1988 issue of the Journal of Chemical Education traces the historical development of Markovnikov s rule. In that article Markovnikov s name is spelled Markownikoff, which is the way it appeared in his original paper written in German. 

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Regioselectivity of Hydrogen Halide Addition Markovnikovs Rule... 

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