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Amidation, Esterification, and Thioesterification of a Carboxyl‐Functionalized Covalent Organic Framework
Author(s) -
Guo Lei,
Jia Shang,
Diercks Christian S.,
Yang Xuejing,
Alshmimri Sultan A.,
Yaghi Omar M.
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201912579
Subject(s) - covalent bond , chemistry , covalent organic framework , yield (engineering) , organic chemistry , combinatorial chemistry , chelation , materials science , metallurgy
Three new post‐synthetic modification reactions, namely amidation, esterification, and thioesterification, were demonstrated on a novel highly crystalline two‐dimensional covalent organic framework (COF), COF‐616, bearing pre‐installed carboxyl groups. The strategy can be used to introduce a large variety of functional groups into COFs and the modifications can be carried out under mild reaction conditions, with high yields, and an easy work‐up protocol. As a proof of concept, various chelating functionalities were successfully incorporated into COF‐616 to yield a family of adsorbents for efficient removal of several contaminants in the water.
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