Synthesis of Pyrazoles by the Condensation of C(α)- and Trianions with Esters
- 1 January 1976
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 6 (1) , 5-10
- https://doi.org/10.1080/00397917608062125
Abstract
In addition to our previous papers2,3 on the preparation of pyrazoles from the C(α), N-dianions of phenylhydrazones and C(α), N, N-trianions of hydrazones, we wish to report preliminary results on (I) the preparation and condensation of methylhydrazone dianions with methyl benzoate followed by acid cyclization, (II) the condensation of the dianions of phenylhydrazone with methylformate, and the preparation and condensation of the trianions of cyclopentanone (III) and α - tetralone (IV) hydrazones.Keywords
This publication has 1 reference indexed in Scilit:
- A new synthesis of substituted pyrazoles from 1,4‐dianions of phenylhydrazones having an α‐hydrogenJournal of Heterocyclic Chemistry, 1970