(Thio)urea-Based Covalent Organic Framework as a Hydrogen-Bond-Donating Catalyst

by Hu, J. Y.; Zanca, F.; Lambe, P.; Tsuji, M.; Wijeweera, S.; Todisco, S.; Mastrorilli, P.; Shirley, W.; Benamara, M.; Moghadam, P. Z.; Beyzavi, M. H.

Two-dimensional urea- and thiourea-containing covalent organic frameworks (COFs) were synthesized at ambient conditions at large scale within 1 h in the absence of an acid catalyst. The site-isolated urea and thiourea in the COF showed enhanced catalytic efficiency as a hydrogen-bond-donating organocatalyst compared to the molecular counterparts in epoxide ring-opening reaction, aldehyde acetalization, and Friedel-Crafts reaction. The COF catalysts also had excellent recyclability.

Journal
ACS Applied Materials and Interfaces
Volume
12
Issue
26
Year
2020
Start Page
29212-29217
URL
https://dx.doi.org/10.1021/acsami.0c04957
ISBN/ISSN
1944-8252; 1944-8244
DOI
10.1021/acsami.0c04957