Tetrahedron p. 599 - 606 (1993)
Update date:2022-07-30
Topics:
Turck, Alain
Ple, Nelly
Ndzi, Bruno
Queguiner, Guy
Haider, Norbert
Schuller, Herbert
Heinisch, Gottfried
Metalation, pyradazines, lithiation Starting from 3,6-dichloropyridazine, a series of new pyridazines bearing lithiation-directing groups in α-position to a ring nitrogen atom (compounds 1-5) was prepared. Metalation employing lithium alkylamides was found to afford ortho-substituted pyridazines. The regioselectivity, depending on the nature of the metalating agent, is discussed.
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