The regiospecific nucleophilic substitution during the ruthenium catalyzed allylicalkylation of 1,3-unsymmetrical disubstituted allylic esters was demonstrated. The nucleophile was selectively introduced at the position originally substituted with leaving group in the 2-DPPBA or ip-pybox ligated [RuCl2(p-cymene)]2 catalyzed allylicalkylation of 1,3-unsymmetrical disubstituted allylic esters. The