The reactions of 1,3-dioxolan-4-ones, readily available from α-hydroxy acids and aldehydes, with C-nucleophiles are described. Two possible reaction pathways resulting in O-substituted acids and tri-(hetero)arylmethanes are shown.

中文翻译：

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Lewis酸介导的C-亲核试剂单加双加成到1,3-二氧戊环4-ones

描述了可容易地从α-羟基酸和醛获得的1，3-二氧戊环-4-酮与C-亲核试剂的反应。显示了导致O-取代的酸和三（杂）芳基甲烷的两种可能的反应途径。