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

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 organo...

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Veröffentlicht in:	ACS applied materials & interfaces 2020-07, Vol.12 (26), p.29212-29217
Hauptverfasser:	Hu, Jiyun, Zanca, Federica, Lambe, Patricia, Tsuji, Miu, Wijeweera, Samantha, Todisco, Stefano, Mastrorilli, Piero, Shirley, William, Benamara, Mourad, Moghadam, Peyman Z, Beyzavi, Hudson
Format:	Artikel
Sprache:	eng
Schlagworte:	Energy, Environmental, and Catalysis Applications
Online-Zugang:	Volltext
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Zusammenfassung:	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.
ISSN:	1944-8244 1944-8252
DOI:	10.1021/acsami.0c04957