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Microwave-assisted synthesis of polysubstituted benzimidazoles by heterogeneous Pd-catalyzed oxidative C–H activation of tertiary amines

De Luca, Lidia Vera Giovanna and Porcheddu, Andrea (2011) Microwave-assisted synthesis of polysubstituted benzimidazoles by heterogeneous Pd-catalyzed oxidative C–H activation of tertiary amines. European Journal of Organic Chemistry, Vol. 2011 (29), p. 5791-5795. eISSN 1099-0690. Article.

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DOI: 10.1002/ejoc.201101001

Abstract

Tertiary amines can be used in place of aldehydes and carboxylic derivatives as partners in the synthesis of benzimidazoles. Dehydrogenative amine activation under heterogeneous catalysis was developed for the direct transformation of tertiary amines into benzimidazoles. Good yields and efficient recovery and recycling of the catalyst are some of the advantages of this new methodology, which shows that a simple alkene is used as the overall oxidative agent. Enhanced reaction rates were observed by using focused microwave heating.

Item Type:Article
ID Code:6912
Status:Published
Refereed:Yes
Uncontrolled Keywords:C-H activation, nitrogen hetero­cycles, hydrogen transfer, heterogeneous catalysis, microwave chemistry
Subjects:Area 03 - Scienze chimiche > CHIM/06 Chimica organica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:Wiley
eISSN:1099-0690
Deposited On:02 Jan 2012 11:13

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