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论文类型：期刊论文

发表时间：2011-04-01

发表刊物：JOURNAL OF ORGANOMETALLIC CHEMISTRY

收录刊物：SCIE、EI

卷号：696

期号：7

页面范围：1479-1482

ISSN号：0022-328X

关键字：1,3-Diyne synthesis; Homo-coupling; Terminal alkyne; Palladium catalyst

摘要：Amine- and copper salt-free palladium-catalyzed homo-coupling reaction of terminal alkynes proceeded efficiently in the presence of silver(I) oxide, which served as both activator and oxidant, in tetrahydrofuran at 60 degrees C to achieve satisfactory yields of 1,3-diyne compounds. It was demonstrated for the first time by means of XPS analysis that Pd(0) species can be oxidated to Pd(II) by silver(I) oxide. (C) 2011 Elsevier B.V. All rights reserved.