Highly effective solar CO2 fixation via photocatalytic carboxylation of aromatic amines with carbon dioxide over a covalent organic framework (COF) as a photocatalyst

Abstract

Carbon dioxide (CO2) is an attractive building block in terms of abundance and sustainability. However, the low reactivity of CO2 limits its application in organic reactions as frequently high-energy reagents are needed to drive organic transformation. Here, we report the efficient carboxylation of aromatic amines with CO2 in the presence of a covalent organic framework (COF) as a photocatalyst in combination with a nickel(II) complex as a co-catalyst under solar light irradiation. This solar-light photo-catalyzed strategy provides a facile method to produce a series of valuable carboxylic acids. Moreover, this versatile protocol shows an inexpensive photocatalyst, mild reaction conditions, and good functional group tolerance without the necessity of using stoichiometric metallic reductants. Moderate to good yields of the desired carboxylic acids were obtained in a substrate scope. This method opens new opportunities for the carboxylation of aromatic amines with CO2.

Graphical abstract: Highly effective solar CO2 fixation via photocatalytic carboxylation of aromatic amines with carbon dioxide over a covalent organic framework (COF) as a photocatalyst

Supplementary files

Article information

Article type
Paper
Submitted
01 Aug 2024
Accepted
29 Sep 2024
First published
04 Oct 2024

Catal. Sci. Technol., 2024, Advance Article

Highly effective solar CO2 fixation via photocatalytic carboxylation of aromatic amines with carbon dioxide over a covalent organic framework (COF) as a photocatalyst

C. Singh, J. Y. Kim, N. Park, R. K. Yadav and J. Baeg, Catal. Sci. Technol., 2024, Advance Article , DOI: 10.1039/D4CY00949E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements