Abstract
An efficient and direct procedure for the synthesis of novel spiro[isoindoline-1,2′-quinazoline]-3,4′(3′H)-dione derivatives is described. The process employs a condensation reaction of 2-aminobenzamides and isatins in the presence of a catalytic amount of KAl(SO4)2.12H2O (alum) in ethanol under reflux.
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We gratefully acknowledge financial support from the Research Council of Shahid Beheshti University.
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Dabiri, M., Mohammadi, A.A. & Qaraat, H. An efficient and convenient protocol for the synthesis of novel 1′H-spiro[isoindoline-1,2′-quinazoline]-3,4′(3′H)-dione derivatives. Monatsh Chem 140, 401–404 (2009). https://doi.org/10.1007/s00706-008-0040-3
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DOI: https://doi.org/10.1007/s00706-008-0040-3