An efficient preparation of novel ferrocenylimidazole and ferrocenyloxazolinone derivatives from beta-ferrocenylvinylheterocumulenes

Authors
Molina, P Tarraga, A Curiel, D de Arellano, CR
Citation
P. Molina et al., An efficient preparation of novel ferrocenylimidazole and ferrocenyloxazolinone derivatives from beta-ferrocenylvinylheterocumulenes, TETRAHEDRON, 55(5), 1999, pp. 1417-1426
Citations number
27
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON
ISSN journal
00404020 → ACNP
Volume
55
Issue
5
Year of publication
1999
Pages
1417 - 1426
Database
ISI
SICI code
0040-4020(19990129)55:5<1417:AEPONF>2.0.ZU;2-8
Abstract
A rapid and efficient synthetic procedure has been developed to prepare new ferrocenylimidazole derivatives bearing an oxygen or sulfur atom at the 2- position in the imidazole ring. The method is based on the thermal heterocy clization of beta-ferrocenylvinylcarbodiimides or related compounds such as beta-fenocenylvinylureas or beta-ferrocenylvinylthioureas. A slight modifi cation using TBAF as cyclizing agent allows the preparation of ferrocenylox azolidinones. (C) 1999 Elsevier Science Ltd. All rights reserved.