Synthesis and structure of an air-stable μ2-hydroxy-bridged binuclear complex of bis(methylcyclopentadienyl)dizirconium(IV) perfluorooctanesulfonate and its application in Lewis acid-catalyzed reactions

• The bis(methylcyclopentadienyl)zirconium perfluorooctanesulfonate was synthesized.
• It has the nature of air-stability, water tolerance and strong Lewis-acidity.
• It shows catalytic efficiency in the Friedel–Crafts acylation, the Mannich reaction.
• The complex can be reused in the reactions.

Air-stable binuclear complex of bis(methylcyclopentadienyl)zirconium perfluorooctanesulfonate (1a) was successfully synthesized by the reaction of (CH3Cp)2ZrCl2 with C8F17SO3Ag. The compound 1a was characterized by different techniques and found to have the nature of air-stability, water tolerance, thermally-stability and strong Lewis-acidity. In addition, its solubility was higher than that of our previously reported uninuclear zirconocene bis(perfluorooctanesulfonate). It showed high catalytic efficiency in the Friedel–Crafts acylation of alkyl aryl ethers and the Mannich reaction and could be reused.

The synthesis of μ2-hydroxy-bridged binuclear complex of bis(methylcyclopentadienyl) dizirconium(IV) perfluorooctanesulfonate and its application in the Friedel–Crafts acylation of alkylaryl ethers and the Mannich reactions.Figure optionsDownload as PowerPoint slide