Tetrahedron

Calcium carbide as a cost-effective starting material for symmetrical diarylethynes via Pd-catalyzed coupling reaction

P Chuentragool, K Vongnam, P Rashatasakhon…

Index: Chuentragool, Padon; Vongnam, Kunnigar; Rashatasakhon, Paitoon; Sukwattanasinitt, Mongkol; Wacharasindhu, Sumrit Tetrahedron, 2011 , vol. 67, # 42 p. 8177 - 8182

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Citation Number: 22

Abstract

A convenient and cost-effective synthetic method for symmetrical diarylethynes from inexpensive calcium carbide and aryl iodide has been developed. The reaction not only proceeds with high yield and selectivity but also tolerates a wide range of functional groups. Application of this reaction has enabled the synthesis of highly functionalized oligo ( phenyleneethynylenes) to be accomplished.