RSS-Feed abonnieren
Bitte kopieren Sie die angezeigte URL und fügen sie dann in Ihren RSS-Reader ein.
https://www.thieme-connect.de/rss/thieme/de/10.1055-s-00000131.xml
Synfacts 2023; 19(01): 0066
DOI: 10.1055/s-0042-1753202
DOI: 10.1055/s-0042-1753202
Polymer-Supported Synthesis
Fluorination of Acyl Chlorides Promoted by a Single-Atom Cobalt Catalyst
Li W.-H,
Ye B.-C,
Yang J,
Wang Y,
Yang C.-J,
Pan Y.-M,
Tang H.-T,
*,
Wang D,
*,
Li Y.
Guangxi Normal University, Guilin and Tsinghua University, Beijing, P. R. of China
A Single-Atom Cobalt Catalyst for the Fluorination of Acyl Chlorides at Parts-per-Million Catalyst Loading.
Angew. Chem. Int. Ed. 2022;
61: e202209749
DOI: 10.1002/anie.202209749
A Single-Atom Cobalt Catalyst for the Fluorination of Acyl Chlorides at Parts-per-Million Catalyst Loading.
Angew. Chem. Int. Ed. 2022;
61: e202209749
DOI: 10.1002/anie.202209749
Significance
A single-atom cobalt catalyst (Co-N4@NC) was prepared by pyrolysis of the Zn and Co metal-organic zeolitic framework (CoZn@BMOF) consisting of Zn, Co, and 2-methylimidazole (eq. 1). Co-N4@NC and AgF catalyzed the fluorination of acyl chlorides with KF as the fluorine source to afford the corresponding acyl fluorides in ≤ 99% NMR yield (eq. 2).
#
Comment
Co-N4@NC was characterized by means of TEM, HR-TEM, HAADF-STEM, SEM, nitrogen adsorption–desorption, EDS, XRD, XPS, XANES, FT-EXAFS, ICP-OES, and WT. The fluorination catalyzed by 0.576 ppm of Co-N4@NC proceeded with a high turnover number of 1.56 × 106.
#
#
Publikationsverlauf
Artikel online veröffentlicht:
16. Dezember 2022
© 2022. Thieme. All rights reserved
Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany