An efficient, mild and very easy method for the synthesis of 2-fluoroalkylated 1,3-benzodioxole derivatives was developed through a double Michael-addition reaction on ethyl 4,4,4-trifluorobut-2-ynoate with corresponding catechols. The procedure does not require the use of expensive supplementary additives for the preparation of 2-fluoroalkylated benzo ketals.

中文翻译：

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通过氟化炔烃的双迈克尔反应，有效，简单地一锅合成2-全氟烷基化的苯并[1,3]二恶唑衍生物

通过在4,4,4-三氟丁-2-酸乙酯与相应的邻苯二酚上进行双迈克尔加成反应，开发了一种高效，温和且非常简便的合成2-氟烷基化1,3-苯并二恶唑衍生物的方法。该方法不需要使用昂贵的辅助添加剂来制备2-氟烷基化的苯并缩酮。