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Molecules 2013, 18(3), 2501-2517; doi:10.3390/molecules18032501
Article

Synthesis, Characterization and Microwave-Promoted Catalytic Activity of Novel N-phenylbenzimidazolium Salts in Heck-Mizoroki and Suzuki-Miyaura Cross-Coupling Reactions under Mild Conditions

1
,
2,* , 3
 and
4
1 Battalgazi Vocational School, İnönü University, Battalgazi, 44210 Malatya, Turkey 2 Department of Chemistry, Faculty of Science, İnönü University, 44280 Malatya, Turkey 3 Department of Elementary Education, Faculty of Education, Hakkari University, 30000 Hakkari, Turkey 4 Department of Elementary Education, Faculty of Education, Adıyaman University, 02040 Adıyaman, Turkey
* Author to whom correspondence should be addressed.
Received: 25 December 2012 / Revised: 29 January 2013 / Accepted: 16 February 2013 / Published: 25 February 2013
(This article belongs to the Section Organic Synthesis)
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Abstract

A number of novel benzimidazolium salts having aryl substituents such as N-phenyl, 4-chlorophenyl and various alkyl substituents were synthesized. Their microwave-assisted catalytic activities were evaluated in Heck-Mizoroki and Suzuki-Miyaura cross-coupling reactions using a catalytic system consisting of Pd(OAc)2/K2CO3 in DMF/H2O under mild reaction conditions with consistent high yields, except those of 2-bromopyridine.
Keywords: N-phenylbenzimidazoles; Suzuki-Miyaura reaction; Heck-Mizoroki reaction; microwaves; NHC-precursor N-phenylbenzimidazoles; Suzuki-Miyaura reaction; Heck-Mizoroki reaction; microwaves; NHC-precursor
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Yılmaz, Ü.; Küçükbay, H.; Deniz, S.; Şireci, N. Synthesis, Characterization and Microwave-Promoted Catalytic Activity of Novel N-phenylbenzimidazolium Salts in Heck-Mizoroki and Suzuki-Miyaura Cross-Coupling Reactions under Mild Conditions. Molecules 2013, 18, 2501-2517.

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