The research of Coordination Polymers (CPs) has received great attention due to their variety of physicochemical properties and applications [1,2], where catalysis is one of the most frequently explored [2]. On the other hand, amino acids and their deriva

JUAN M. REY; FEDERICO MOVILLA; L. SANTIBÁÑEZ; E. SPODINE; P. CANCINO; F. DI SALVO

virtual

Simposio; 8th SILQCOM. American Symposium on Coordination and Organometallic Chemistry; 2022

SILQCOM. American Symposium on Coordination and Organometallic Chemistry

The research of Coordination Polymers (CPs) has received great attention due to their variety of physicochemical properties and applications [1,2], where catalysis is one of the most frequently explored [2]. On the other hand, amino acids and their derivatives are excellent building blocks for the obtaining of biocompatible and chiral CPs, because of the possibility to deliver different coordination modes [1]. Herein, we present the synthesis and characterization of two new Co(II) (1) and Cd(II) (2) 1D CPs, derived from the aldehyde piperonal and L-Phenylalanine (Figure 1). Their use as catalysts for the aerobic oxidation of cycloalkenes at 75°C in solvent-free conditions was studied with great response. In both cases, the cycloxenone was the main product, with a good selectivity. Compound 1 demonstrated to be also effective at room temperature. In addition, it was demonstrated that the mechanism has an important contribution from a radical pathway. DFT calculations performed to analyze the reaction process, showed the direct interaction between the catalyst and oxygen, and confirmed the role of the supramolecular network established by the ligand to stabilize intermediaries.1] E. R. Engel, J. L. Scott, Green Chem. 22, (2020) 3693.[2] P. Cancino et al. Catal. Sci. Technol. 7 (2017), 231.