Polystyrene-supported Palladium(II) Ethylenediamine Complex: A Recyclable Catalyst for the Syntheses of 2-Benzyl-imidazo[2,1-b][1,3]benzothiazoles by Sonogashira Reaction

✍ Scribed by Mohammad BAKHERAD; Bahram BAHRAMIAN; Hossein NASR-ISFAHANI; Ali KEIVANLOO; Golnaz SANG

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 84 KB
• Volume: 27
• Category: Article
• ISSN: 0256-7660
• DOI: 10.1002/cjoc.200990057

✦ Synopsis

Abstract

The polymer‐supported palladium(II) ethylenediamine complex was used as a catalyst for the heterocyclization during Sonogashira reaction between a substituted phenyl iodide and 2‐amino‐3‐(2‐propynyl)‐1,3‐benzothiazolium bromide, which could readily be recovered from the reaction medium by a simple filtration, and reused without a significant loss in its activity.