Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact: purchase@heterocycles.com

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Paper | Regular issue | Vol 68, No. 8, 2006, pp.1669-1673
Published online, 27th June, 2006
DOI: 10.3987/COM-06-10785
A Simple KHSO4 Promoted Synthesis of 2-Arylsubstituted Benzimidazoles by Oxidative Condensation of Aldehydes with o-Phenylenediamine

Huiqiang Ma, Yulu Wang, and Jinye Wang*

*College of Chemistry and Environmental Science, Henan Normal University, Xinxiang, 453007, Henan, China

Abstract

KHSO4 is used to promote the oxidative condensation of o-phenylenediamine with aldehydes in DMF and afford corresponding 2-substituted benzimidazoles efficiently. Simple and convenient procedure, use of inexpensive promoter, easy purification and shorter reaction time are the advantageous features of this method.