Calcium carbide as a cost-effective starting material for symmetrical diarylethynes via Pd-catalyzed coupling reaction
作者:Padon Chuentragool、Kunnigar Vongnam、Paitoon Rashatasakhon、Mongkol Sukwattanasinitt、Sumrit Wacharasindhu
DOI:10.1016/j.tet.2011.08.042
日期:2011.10
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. (C) 2 011 Elsevier Ltd. All rights reserved.