Synthesis, characterization and microwave-assisted catalytic activity of novel benzimidazole salts bearing piperidine and morpholine moieties in Heck cross-coupling reactions

A mixture of novel benzimidazole salts (2a–f), Pd(OAc)2 and K2CO3 in DMFH2O catalyzes, in high yield, the Heck cross‐coupling reaction assisted by microwave irradiation in a short time. All synthesized novel benzimidazole derivatives were characterized by elemental analysis and NMR spectroscopy. In...

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Published in:Applied organometallic chemistry 2011-04, Vol.25 (4), p.255-261
Main Authors: Küçükbay, Hasan, Şireci, Nihat, Yılmaz, Ülkü, Akkurt, Mehmet, Yalçın, Şerife Pınar, Nawaz Tahir, M., Ott, Holger
Format: Article
Language:English
Subjects:
benzimidazole salt
carbene
coupling reaction
Derivatives
Heck coupling
Metalorganic compounds
microwave
Microwaves
Molecular structure
Morpholine
NMR spectroscopy
palladium catalysis
Synthesis
X-rays
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Summary:A mixture of novel benzimidazole salts (2a–f), Pd(OAc)2 and K2CO3 in DMFH2O catalyzes, in high yield, the Heck cross‐coupling reaction assisted by microwave irradiation in a short time. All synthesized novel benzimidazole derivatives were characterized by elemental analysis and NMR spectroscopy. In addition, the molecular structure of 2a was determined by X‐ray crystallography. Copyright © 2011 John Wiley & Sons, Ltd. An efficient catalyst system, containing benzimidazolium salts bearing piperidine and morpholine moieties in Heck reaction of aryl halides with phenylboronic acid and styrene under microwave irradiation, is reported.
ISSN:0268-2605
1099-0739
1099-0739
DOI:10.1002/aoc.1751