Synthesis 2004(14): 2329-2334  
DOI: 10.1055/s-2004-831189
PAPER
© Georg Thieme Verlag Stuttgart · New York

Convenient Synthesis of Substituted 3-Alkenylpyrazolo[1,5-a]pyrimidines via Heck Cross-Coupling Reaction

Lunxiang Yin, Jürgen Liebscher*
Institut für Chemie, Humboldt-Universität Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
Fax: +49(30)20937552; e-Mail: liebscher@chemie.hu-berlin.de;
Further Information

Publication History

Received 29 January 2004
Publication Date:
25 August 2004 (online)

Abstract

3-Iodopyrazolo[1,5-a]pyrimidines 3 were easily obtained by direct iodination of pyrazolo[1,5-a]pyrimidines 2 with NIS and could be transformed into a series of new substituted 3-alkenyl-pyrazolo[1,5-a]pyrimidines 5 by Heck cross-coupling.