Download PDF
Synlett 1999; 1999(3): 299-302
DOI: 10.1055/s-1999-2608
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.

β-Tosylhydrazono Phosphonates in Organic Synthesis. An Unambiguous Entry to Polysubstituted Pyrazoles

N. Almirante* , A. Benicchio, A. Cerri, G. Fedrizzi, G. Marazzi, M. Santagostino
  • *Prassis Istituto di Ricerche Sigma-Tau, Via Forlanini 3, 20019 Settimo Milanese, (MI), Italy; Fax +39 (02 33) 50 03 88; E-mail: pstchem@tin.it
Further Information

Publication History

Publication Date:
31 December 1999 (online)

  PDF Download  Permissions and Reprints All articles of this category

β-Tosylhydrazono phosphonates are novel, bifunctional reagents which were used for a concise approach to a wide range of polysubstituted pyrazoles in a single operation from aromatic and aliphatic aldehydes.

β-tosylhydrazono phosphonate - aldehyde - α,β-unsaturated tosylhydrazone - pyrazole

      >