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Cross‐Coupling of Aryl Iodides with Malononitrile Catalyzed by Palladium N‐ Heterocyclic Carbene Complex System

Cross‐Coupling of Aryl Iodides with Malononitrile Catalyzed by Palladium N‐ Heterocyclic Carbene... Eight N‐heterocyclic carbenes (NHC), generated in situ from their imidazolium salts, as ligands of palladium complexes were used for the catalytic coupling of iodobenzene with malononitrile anion. It was found that 1,3‐bis (2,4,6‐trimethylphenyl) ‐imidazolium chloride (IMesHCl)‐Pd2 (dba) 3 catalytic system has the highest activity to obtain phenyl malononitrile among the imidazolium salts. The substituted iodoarenes reacted with malononitrile anions by using the catalytic system to give cross‐coupling products in yields from 50% to 96%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Chemistry Wiley

Cross‐Coupling of Aryl Iodides with Malononitrile Catalyzed by Palladium N‐ Heterocyclic Carbene Complex System

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References (19)

Publisher
Wiley
Copyright
Copyright © 2002 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1001-604X
eISSN
1614-7065
DOI
10.1002/cjoc.20020200904
Publisher site
See Article on Publisher Site

Abstract

Eight N‐heterocyclic carbenes (NHC), generated in situ from their imidazolium salts, as ligands of palladium complexes were used for the catalytic coupling of iodobenzene with malononitrile anion. It was found that 1,3‐bis (2,4,6‐trimethylphenyl) ‐imidazolium chloride (IMesHCl)‐Pd2 (dba) 3 catalytic system has the highest activity to obtain phenyl malononitrile among the imidazolium salts. The substituted iodoarenes reacted with malononitrile anions by using the catalytic system to give cross‐coupling products in yields from 50% to 96%.

Journal

Chinese Journal of ChemistryWiley

Published: Sep 1, 2002

Keywords: ; ; ; ;

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