Synthesis of 2-bromo-7-methyl-3,5-dihydr
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Matthias Eckhardt; Norbert Hauel; Elke Langkopf; Frank Himmelsbach
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Article
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2008
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Elsevier Science
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French
⚖ 113 KB
Two synthetic routes to the versatile 3,5-dihydro-imidazo [4,5-d]pyridazin-4-ones 2 and 5 have been developed that allow the production of multigram quantities without the need of any chromatographic purification. Broad and selective elaboration of the heteroaromatic scaffolds has also been accompli