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Org. Biomol. Chem., 2008, 6, 3144 - 3157
Polar [3 + 2] cycloaddition of ketones with electrophilically activated carbonyl ylides.
Synthesis of spirocyclic dioxolane indolinones
Ghenia Bentabed-Ababsa, Aicha Derdour, Thierry Roisnel, Jose A. Sáez, Luis R. Domingo and Florence Mongin
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http://dx.doi.org/10.1039/b804856h
