A new class of ultrastable dual hydrogen-bond-donor COF for improving the reaction activity
Hui-Chao Ma1, Ming-Zhe Li1, Ling-Xu Zhang1
1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in the Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China. huichaoma@sdnu.edu.cn.
Abstract:
Dual hydrogen-bond-donor (HBD) molecules attracted considerable attention in the area of organocatalysts. Here, a novel and stable dual HBD TBP-COF has been developed by structural transformation from TB-COF by locking the reversible bond to form a heterocycle. The obtained dual HBD COF showed excellent hydrogen bond catalytic performance in promoting the Friedel-Crafts reaction. Postsynthetic engineering endows TBP-COF with exceptional stability, demonstrating 90% activity retention over 20 catalytic cycles.
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