Synthesis 2022; 54(21): 4827-4833
DOI: 10.1055/a-1894-9073
paper

Organic Base-Mediated Carboxylation of (Hetero)aromatic Compounds Using Supercritical Carbon Dioxide (scCO2)

a   Catalysis and Peptide Research Unit, University of KwaZulu Natal, Durban, 4001, South Africa
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a   Catalysis and Peptide Research Unit, University of KwaZulu Natal, Durban, 4001, South Africa
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a   Catalysis and Peptide Research Unit, University of KwaZulu Natal, Durban, 4001, South Africa
b   Science for Life Laboratory, Drug Discovery & Development Platform & Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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a   Catalysis and Peptide Research Unit, University of KwaZulu Natal, Durban, 4001, South Africa
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c   Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa 3886, South Africa
› Author Affiliations
The South African National Research Foundation grant numbers 137961, 145774, 120419.


Abstract

A straightforward site-selective method for the direct carboxylation of resorcinols (3-hydroxyphenol derivatives), phenols, and indoles is reported. The products were obtained in moderate to high yields using supercritical carbon dioxide as an electrophile and solvent under basic conditions. This method offers solvent and metal free conditions without the cumbersome exclusion of air or water with convenient purification.

Supporting Information



Publication History

Received: 26 May 2022

Accepted after revision: 08 July 2022

Accepted Manuscript online:
08 July 2022

Article published online:
16 August 2022

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