Synthesis of novel spiro[chromeno[4′,3′:3,4]pyrazolo[1,2-b]phthalazine-7,3′-indoline]-2′,6,9,14-tetraone
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DOI: 10.1007/s13738-018-1506-9
Abstract: Fe3O4@Cys–SO3H magnetic nanocatalyst has been used as an effective and reusable solid acid catalyst for the one pot synthesis of novel spiro[chromeno[4′,3′:3,4]pyrazolo[1,2-b]phthalazine-7,3′-indoline]-2′,6,9,14-tetraone via a three-component reaction of phthalhydrazide, 4-hydroxycoumarin and isatin derivatives. Easy separation of… read more here.
Keywords: novel spiro; synthesis novel; chromeno pyrazolo; spiro chromeno ... See more keywords