Answers are grounded in this paper and cite their sources.
The Lewis acid-catalyzed, three-component reaction of isatin and two 1,3-dicarbonyl compounds is reported. Reactions proceed with high efficiency under mild reaction conditions and with good functional group tolerance to afford spirooxindole pyranochromenedione derivatives.
No takes yet. Share an insight, caveat, or question.
Liang et al. (2010) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: