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Paper | Regular issue | Vol 26, No. 5, 1987, pp.1283-1289
Published online, 1st January, 1970
DOI: 10.3987/R-1987-05-1283
On the Configuration and the Conformation of 2-Acylindazole Arylhydrazones

Giuseppe Cusmano, Gabriella Macaluso, Werner Hinz, and Silvestre Buscemi

*Instituto de Chimica Organica, Facolta de Scienze, Università digli Studi di Palermo, 20 via Archirafi, 90123 Palermo, Italy

Abstract

The Z configuration of 2-acylindazole arylhydrazones 3 was assigned on the basis of solvent effects on their 1H-nmr spectra. Due to free rotation around the N-C bond, the title compounds exist in a solvent dependent equilibrium between the intramolecular N-H bonded conformer 6 and its rotamers.