These reactions offer a highly modular and regioselective approach to γ-amino boronic esters and γamino boronic gem-diborylalkanes. The main limitation in these reactions is the use of only alkyl carboxylic acids. We envisioned that overcoming this limitation and expanding these reactions to the aromatic carboxylic acids could results in new connections and transformations. However, our efforts toward the decarboxylative coupling of aromatic carboxylic acids 1 have been failed and did not exhibit any conversion with vinyl boronic esters derivatives e.g. gem-diborylalkenes 2' under the optimized conditions (Figure ).