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. 5, 2006, pp.949-966
Published online, 24th March, 2006
DOI: 10.3987/COM-06-10688
■ Synthesis of Methyl 2-[(Benzyloxycarbonyl)amino]-3-cyanopropenoate and Its Transformations into Derivatives of Pyrrole, 2,5-Dioxoimidazolidine, 1H-Pyrazole, and 4,6-Diaminopyridazine

Uros Ursic, David Bevk, Renata Toplak, Uros Groselj, Anton Meden, Jurij Svete,* and Branko Stanovnik*

*Department of Organic Chemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Askerceva 5, P.O. Box 537, SI-1000 Ljubljana, Slovenia

Abstract

Methyl (E)-2-[(benzyloxycarbonyl)amino]-3-cyanopropenoate (4) was, as a versatile multifunctional reagent, transformed with hydrazine and monosubstituted aromatic and heteroaromatic hydrazines under various conditions into derivatives of pyridazine (6), pyrrole (7), imidazole-2,4-dione (9), and pyrazole (13).