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Paper | Regular issue | Vol 60, No. 8, 2003, pp.1811-1820
Published online, 30th June, 2003
DOI: 10.3987/COM-03-9796
Thermal Rearrangement of 3-Hydroxy-1H,3H-quinoline-2,4-diones to 3-Acyloxy-2,3-dihydro-1H-indol-2-ones

Antonín Klásek,* Kamil Koristek, Stanislav Kafka, and Janez Kosmrlj

*Faculty of Technology, Tomas Bata University in Zlín, 762 72 Zlín, Czech Republic

Abstract

3-Alkyl/aryl-3-hydroxy-1H,3H-quinoline-2,4-diones (2) were transformed into isomeric 3-acyloxy-2,3-dihydro-1H-indol-2-ones (3) by thermally induced molecular rearrangement. All products were characterized by their 1H NMR, 13C NMR, and IR spectra.