Conformationally flexible dimeric salphen complexes for bifunctional catalysis

Appropriate modification of the salphen ligand has allowed an easy modular design of flexibly linked dimeric salphen species and their complexes, which has acted as bifunctional catalysts. The results have shown an enhancement in activity upon dimerization, thus highlighting the role of bifunctional catalysis in the processes and extending the strategies for improvement of catalysts in these reactions.