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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 38, 2008 - Issue 4
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Original Articles

N‐Arylation of Heterocycles with Chloro‐ and Fluoroarenes using Resin‐Supported Sulfonato‐Cu(salen) Complex

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Pages 626-636 | Received 22 Aug 2007, Published online: 27 Feb 2008
 

Abstract

Sulfonato‐Cu(salen) complex immobilized onto a Merrifield's resin was found to be an efficient catalyst for the N‐arylation of heterocycles with electron‐withdrawing hloro‐ and fluoroarenes. The reactions were carried out in the presence of an inexpensive mild base, K2CO3, and N‐arylated compounds were obtained in good to excellent yields. The catalyst was recovered by simple filtration and reused for three cycles with almost consistent activity.

Acknowledgments

We thank the CSIR for financial support under the Task Force Project CMM‐0005. T. Ramani thanks the UGC, and L. C. thanks the CSIR, India, for providing senior research fellowships.

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