Synthesis of unsymmetrical diarylethynes by Pd(0)/Cu(I)-cocatalyzed Sila-Sonogashira-Hagihara coupling reactions of alkynylsilanes with aryl tosylates or mesylates

Yasushi Nishihara, Daisuke Ogawa, Shintaro Noyori, Masayuki Iwasaki

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13 Citations (Scopus)

Abstract

Palladium/copper-cocatalyzed cross-coupling reactions of alkynylsilanes with aryl tosylates or mesylates afforded the corresponding unsymmetrical diarylethynes in moderate to good yields. The optimized reaction conditions to afford higher yields of cross-coupled products were found to be 5mol% of [PdCl 2(bpy)], 15 mol% of BrettPhos, and 10 mol% of Cu 1Cl in DMF as a solvent.

Original languageEnglish
Pages (from-to)1503-1505
Number of pages3
JournalChemistry Letters
Volume41
Issue number11
DOIs
Publication statusPublished - Nov 28 2012

ASJC Scopus subject areas

  • Chemistry(all)

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