Synthesis and microwave-assisted catalytic activity of novel bis-benzimidazole salts bearing furfuryl and thenyl moieties in Heck and Suzuki cross-coupling reactions

YILMAZ U., Sireci N., DENIZ S., KÜÇÜKBAY H.

APPLIED ORGANOMETALLIC CHEMISTRY, vol.24, no.5, pp.414-420, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 5
  • Publication Date: 2010
  • Doi Number: 10.1002/aoc.1633
  • Journal Name: APPLIED ORGANOMETALLIC CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.414-420
  • Keywords: bis-benzimidazole salt, carbene, palladium catalysis, coupling reaction, Heck coupling, Suzuki coupling, microwave, LIGAND-FREE PALLADIUM, MIYAURA REACTION, ARYL CHLORIDES, ORGANOBORON COMPOUNDS, ARYLBORONIC ACIDS, ORGANIC-SYNTHESIS, COMPLEXES, WATER, DERIVATIVES, HALIDES
  • Inonu University Affiliated: Yes

Abstract

A mixture of bis-benzimidazole salts (1-7), Pd(OAc)(2) and K(2)CO(3) in DMF-H(2)O catalyzes, in high yield, the Suzuki and Heck cross-coupling reactions assisted by microwave irradiation in a short time. In particular, the yields of the Heck and Suzuki reactions with aryl bromides were found to be nearly quantative. The synthesized bis-benzimidazole salts (1-7) were identified by (1)H-(13)C NMR, IR spectroscopic methods and micro analysis. Copyright (C) 2010 John Wiley & Sons, Ltd.