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Paper | Regular issue | Vol 38, No. 1, 1994, pp.125-134
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6541
Pyridazines, 69. 2-Fluorophenyl 3-Pyridazinyl Ketone as a Versatile Precursor for Benzo-annelated Heterocyclic Systems

Norbert Haider, Gottfried Heinisch,* and Jöran Moshuber

*Institute of Pharmaceutical Chemistry, University of Innsbruck, Innrain 52a, A-6020 Innsbruck, Austria

Abstract

The fluorophenyl pyridazinyl ketone (4), conveniently prepared from 3,6-dichloropyridazine, was shown to be a valuable precursor for so far not accessible pyridazinyl-substituted benzo-annelated five-, six, or seven-membered heterocycles (9,11,6a,b) and for the two novel diazaacridones (12) and (13).