Lanthanum-1,2,3-Triazole-Based 2D Coordination Polymer is anEfficient Catalyst for the Oxidation of Olefins

A new two-dimensional (2D) coordination polymer (CP) [La(C18H14N3O6)(2)(H2O)(OH)](n) has been prepared from a 1,2,3-triazole linker and lanthanum nitrate hexahydrate in DMF. The La-CP was characterized by single-crystal X-ray crystallography, highlighting the binding motif at La ions and the fact that the material contains channels with entrapped solvent. The CP showed good catalytic activity for the oxidation of a wide variety of olefins (linear, cyclic, aromatic, and functionalized alkenes) to aldehydes. Mechanistic studies show that the oxidation reaction proceeds via a non-free-radical mechanism. The catalyst could be recovered and reused five times without major changes in activity for the oxidation of styrene to benzaldehyde

Automated summary

A new two-dimensional coordination polymer has been synthesized and shown to have good catalytic activity for the oxidation of various olefins.