PDF herunterladen
Synthesis 1994; 1994(7): 681-682
DOI: 10.1055/s-1994-25544
short paper
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

Synthesis of 4,4′-Biimidazoles

Matthew D. Cliff* , Stephen G. Pyne
  • *Department of Chemistry, University of Wollongong, Wollongong, NSW 2522, Australia
Weitere Informationen

Publikationsverlauf

Publikationsdatum:
17. September 2002 (online)

  als PDF herunterladen  Lizenzen und Reprints Alle Artikel dieser Rubrik

The palladium(0) catalysed coupling reaction of 4-iodo-1-triphenylmethylimidazole (7) or its 2-methyl analogue 8 afforded the 4,4′-biimidazoles 9 and 10, respectively. Treatment of these compounds with 60% aqueous trifluoroacetic acid gave 4,4′-biimidazole and 2,2′-dimethyl-4,4′-biimidazole as their bistrifluoroacetate salts 11 and 12, respectively.