Issue 3, 2013

pH-Responsive N-heterocyclic carbene copper(i) complexes: syntheses and recoverable applications in the carboxylation of arylboronic esters and benzoxazole with carbon dioxide

Abstract

A pH-controlled monophasic/biphasic switchable system has been developed as a green and novel strategy for homogeneous catalyst recycling, which has been successfully applied to the Cu-NHC-catalyzed carboxylation of organoboronic esters and benzoxazole with carbon dioxide. Additionally, the present strategy could also be extended to the Ag-NHC-catalyzed carboxylation of terminal alkyne. The tertiary amine-functionalized catalysts could be used for at least four times with a slight loss of activity.

Graphical abstract: pH-Responsive N-heterocyclic carbene copper(i) complexes: syntheses and recoverable applications in the carboxylation of arylboronic esters and benzoxazole with carbon dioxide

Supplementary files

Article information

Article type
Communication
Submitted
17 Nov 2012
Accepted
09 Jan 2013
First published
10 Jan 2013

Green Chem., 2013,15, 635-640

pH-Responsive N-heterocyclic carbene copper(I) complexes: syntheses and recoverable applications in the carboxylation of arylboronic esters and benzoxazole with carbon dioxide

W. Wang, G. Zhang, R. Lang, C. Xia and F. Li, Green Chem., 2013, 15, 635 DOI: 10.1039/C3GC36830K

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