PDF herunterladen
Synlett 1992; 1992(4): 327-328
DOI: 10.1055/s-1992-22002
letter
© 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.

A Convenient Method for the Synthesis of C-5 Substituted 1-Tosylpyrazoles

Kevin I. Booker-Milburn*
  • *Department of Chemistry and Applied Chemistry, University of Salford, Salford M5 4WT, England
Weitere Informationen

Publikationsverlauf

Publikationsdatum:
08. März 2002 (online)

 als PDF herunterladen  Lizenzen und Reprints Alle Artikel dieser Rubrik
Preview

Treatment of N-tosylpyrazole (1) with tert-butyllithium at -78 °C in tetrahydrofuran and alkylation of the resulting organolithium with a variety of electrophiles, gave rise to a number of C-5 substituted 1-tosylpyrazoles 3 in good to excellent yield.