Esmail Sadat-Ebrahimi, Seyed Haghayegh-Zavareh, Seyed Mohammad Bahadorikhalili, Saeed Yahya-Meymandi, Azadeh Mahdavi, Mohammad Saeedi, Mina Cu(II)-β-cyclodextrin-catalyzed synthesis of spiro[indoline-3,4′-pyrano[3,2-<i>c</i>]chromene]-3′-carbonitrile derivatives <p>Cu(II)-β-cyclodextrin-catalyzed synthesis of spiro[indoline-3,4′-pyrano[3,2-<i>c</i>]chromene]-3′-carbonitriles through the reaction of isatin derivatives, 4-hydroxycoumarin, and malononitrile in ethanol at room temperature.</p> Cu(II)-β-cyclodextrin;isatin;spiro;synthesis 2017-11-08
    https://tandf.figshare.com/articles/journal_contribution/Cu_II_-_-cyclodextrin_catalyzed_synthesis_of_spiri_indoline-3_4_-pyrano_3_2-c_chromene_-3_-carbonitrile_derivatives/5395231
10.6084/m9.figshare.5395231