Synthesis of ethynyl end-capped oligo-aryl ethers

J Xu, GQ Lai, CY Wang, YJ Shen

Index: Xu, Jinfeng; Lai, Guo-Qiao; Wang, Cheng-Yun; Shen, Yong-Jia Journal of Chemical Research, 2006 , # 9 p. 572 - 574

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Abstract

A series of aryl ether oligomers end-capped with ethynyl groups have been synthesised via a three-step process, ie iodination of oligo-aryl ethers, nucleophilic substitution of the iodide group with 2-methyl-3-butyn-2-ol catalysed by Pd/Cu and subsequent deacetonation in KOH/toluene. Effects of reaction temperature and the Pd/Cu catalyst on iodination and the substitution reaction are discussed.