Volume 25, Issue 4 pp. 283-288
Full Paper

Highly efficient amine-based catalytic system for room temperature Suzuki–Miyaura reactions of aryl halides with arylboronic acids

Pankaj Das

Corresponding Author

Pankaj Das

Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India

Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India.Search for more papers by this author
Chandan Sarmah

Chandan Sarmah

Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India

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Archana Tairai

Archana Tairai

Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India

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Utpal Bora

Utpal Bora

Department of Chemistry, Dibrugarh University, Dibrugarh-786004, Assam, India

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First published: 21 January 2011
Citations: 57

Abstract

An in situ-generated catalytic system based on PdCl2 and primary amine-based ligand exhibited excellent activity (up to 98% isolated yield) in the Suzuki–Miyaura cross-coupling reactions of aryl bromides with arylboronic acids in water, at room temperature, without any additive. The efficiencies of the ligands follow the order: (C6H5)3CNH2 > C6H5CH2 NH2 > C6H5 NH2 > C6H11 NH2, which is in accordance with the palladacycle forming capacity of the respective ligands. Moderate-to-good yields (up to 78% isolated yield) of the coupling products were also obtained with less reactive aryl chlorides as substrates at room temperature in isopropanol using an alternative protocol based on Pd(OAc)2 and (C6H5)3CNH2. Copyright © 2011 John Wiley & Sons, Ltd.

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