Development of a novel Bronsted acid UiO-66 metal-organic framework catalyst by postsynthetic modification and its application in catalysis

作者：Miao, Zongcheng; Qi, Chao; Wensley, Allison M.; Luan, Yi^*

来源：RSC Advances, 2016, 6(71): 67226-67231.

DOI：10.1039/c6ra14365b

• SULFONIC-ACID
• LEWIS-ACID
• CHEMOSELECTIVE SYNTHESIS
• HETEROGENEOUS CATALYSTS
• OPPORTUNITIES
• ACETALS
• PERFORMANCE

A novel Bronsted acid derived metal-organic framework (MOF) has been developed to serve as an efficient heterogeneous catalyst for the acetalization and Morita-Baylis-Hillman reaction. Aromatic sulfonic acid groups were successfully incorporated to the framework of UiO-66 by post-synthetic modifications using commercially available anhydridic reagents. The UiO-66-RArSO3H Bronsted acid catalyst was fully characterized using SEM, PXRD, FTIR, TGA and N-2 adsorption/desorption isotherms. Furthermore, efficient acetalization and Morita-Baylis-Hillman reactions were evaluated to demonstrate the high catalytic performance of the UiO-66-RArSO3H catalyst. The UiO-66-RArSO3H catalyst is compatible with a variety of substituted substrates and can be recycled five times without a compromise in the yield or selectivity.

• 出版日期2016
• 单位北京科技大学; 西京学院