HETEROCYCLES

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.

■ Heterocyclic Quinones with Potential Antitumor Activity. A Convenient Synthesis of 5,6-Dimethyl-4,7-benzimidazolediones

Ippolito Antonini, Gloria Cristalli, Palmarisa Franchetti, Mario Grifantini, and Sante Martelli

*Department of Chemical Sciences, University of Camerino, Italy

Abstract

Simple syntheses of 1-substituted 5,6-dimethyl-4,7-benzimidazolediones (Ia-c) are described. The commercially available 5,6-dimethylbenzimidazole was alkylated and nitrated. The corresponding 4,7-dinitro derivatives were reduced to diamines and subsequently oxidized to quinones.