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.

Note | Regular issue | Vol 68, No. 5, 2006, pp.1017-1023
Published online, 31st March, 2006
DOI: 10.3987/COM-05-10647
■ Synthesis of 1,5-Benzodiazepine Derivatives Catalysed by Zinc Chloride

Mohamed Afzal Pasha* and Vaderapura Puttaramegowda Jayashankara

*Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore-560 001, India

Abstract

2,3-Dihydro-1H-1,5-benzodiazepines have been synthesized by the condensation of
o-phenylenediamine (OPDA) with cyclic or acyclic ketones in the presence of zinc chloride as catalyst at 80-85 °C. The yields are high and the reactions go to completion within 10-20 min.