2021
DOI: 10.5155/eurjchem.12.4.382-388.2141 View full text |Buy / Rent full text
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Abstract: The title compound, 5-chlorospiro[indoline-3,7'-pyrano[3,2-c:5,6-c']dichromene]-2,6',8'-trione was synthesized via one-pot pseudo three-component reaction between one equivalent of 5-chloroisatin and two equivalents of 4-hydroxycoumarin using mandelic acid as catalyst in aqueous ethanol at 110 °C. The synthesized compound was characterized by FT-IR, 1H NMR, and HRMS techniques. Single crystals were grown for crystal structure determination by using single X-ray crystallography technique. It was found that the … Show more

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