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 | Special issue | Vol 66, No. 1, 2005, pp.543-548
Published online, 2nd December, 2005
DOI: 10.3987/COM-05-S(K)6
Direct C-C Coupling of meso-Octamethylcalix[4]pyrrole with 6-Nitroazolopyrimidines

Oleg N. Chupakhin,* Nadezhda A. Itsikson, Sergey Sh. Bashirov, Dmitry G. Beresnev, and Gennady L. Rusinov

*Institute of Organic Synthesis, Urals Branch, Russian Academy of Sciences, 20, S. Kovalevskaya st., Ekaterinburg, GSP-147, 620219, Russia

Abstract

It has been found that the reaction of meso-octamethylcalix[4]pyrrole with four equivalents of 6-nitroazolopyrimidine is accompanied by the C-C coupling of unsubstituted carbon atom in azines with β-position of pyrrole rings and results in the formation of tetrapyrimidine-substituted calix[4]pyrroles without introduction of any catalysts. Mono- and di-substituted calixpyrroles have been isolated.