Synthesis of (hetero)arylated pyridazin-3(2H)-ones via Negishi reaction involving zincated pyridazin-3(2H)-ones |
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| Authors: | Verhelst Tom Liu Zuming Maes Jens Maes Bert U W |
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| Institution: | Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium. |
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| Abstract: | Zincated pyridazin-3(2H)-ones generated via bromine-magnesium exchange followed by transmetalation using ZnCl(2) or via lactam-directed ortho C4-H zincation with TMPZnCl·LiCl have been synthesized. These in situ created organometallics can be used in Negishi reactions with iodo(hetero)arenes delivering a new approach toward (hetero)arylpyridazin-3(2H)-ones. |
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