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Indexed by:期刊论文

Date of Publication:2011-04-01

Journal:JOURNAL OF ORGANOMETALLIC CHEMISTRY

Included Journals:SCIE、EI

Volume:696

Issue:7

Page Number:1479-1482

ISSN No.:0022-328X

Key Words:1,3-Diyne synthesis; Homo-coupling; Terminal alkyne; Palladium catalyst

Abstract: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.