Open Access(Thio)urea-Based Covalent Organic Framework as a Hydrogen-Bond-Donating Catalyst
Author(s) -
Jiyun Hu,
Federica Zanca,
Patricia Lambe,
Miu Tsuji,
Samantha Wijeweera,
Stefano Todisco,
Piero Mastrorilli,
William M. Shirley,
Mourad Benamara,
Peyman Z. Moghadam,
M. Hassan Beyzavi
Publication year - 2020
Publication title -
acs applied materials and interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.535
H-Index - 228
eISSN - 1944-8252
pISSN - 1944-8244
DOI - 10.1021/acsami.0c04957
Subject(s) - thiourea , covalent bond , catalysis , urea , aldehyde , epoxide , thio , hydrogen bond , organic chemistry , ring (chemistry) , materials science , polymer chemistry , chemistry , molecule
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.