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Published in 2018 at "Journal of the Iranian Chemical Society"
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…
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Keywords:
novel spiro;
synthesis novel;
chromeno pyrazolo;
spiro chromeno ... See more keywords
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Published in 2018 at "Polycyclic Aromatic Compounds"
DOI: 10.1080/10406638.2016.1154579
Abstract: ABSTRACT A novel and clean one-pot synthesis of spiro[chromeno[2,3-c]pyrazole-4,3′-indoline]-2′,5(6H)-diones via cyclocondensation reaction of isatins, 1,3-cyclohexadiones, and pyrazolone in aqueous media using SBA-Pr-SO3H (sulfonic acid-functionalized mesoporous silica) as an efficient heterogeneous solid acid catalyst was reported.…
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Keywords:
one pot;
pot synthesis;
pyrazole indoline;
spiro chromeno ... See more keywords