| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject compound in a high yield by subjecting anα-hydroxycarboxylic acid compound and an arylthioketone compound to a desulfurizing condensation reaction in the presence of a desulfurizing agent and a base. SOLUTION: This method for producing a 1,3-dioxolan-4-one compound of formula III (for example, a compound of formula IV) comprises subjecting (A) anα-hydroxycarboxylic acid compound of formula I [R<1> and R<2> are each H, a (substituted) alkyl or the like] and (B) (i) an arylthioketone compound of formula II (Ar<1> and Ar<2> are each an aryl) to a desulfurizing condensation reaction in the presence of (ii) a desulfurizing agent (for example, Ag) and (iii) a base (for example, a hydroxycarboxylic acid alkali metal salt). The component Bii is preferably used in an amount of at least 1 equivalent per equivalent of the component Bi, and the component Biii is preferably used in an amount of at least 2 equivalents per equivalent of the component A.
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