作者:Qing-Wei Zhang、Andrew T. Brusoe、Vincent Mascitti、Kevin D. Hesp、David C. Blakemore、Jeffrey T. Kohrt、John F. Hartwig
DOI:10.1002/anie.201604793
日期:2016.8.8
The synthesis of mono‐, di‐, and trifluoromethyl aryl ethers by fluorodecarboxylation of the corresponding carboxylic acids is reported. AgF2 induces decarboxylation of aryloxydifluoroacetic acids, and AgF, either generated in situ or added separately, serves as a source of fluorine to generate the fluorodecarboxylation products. The addition of 2,6‐difluoropyridine increased the reactivity of AgF2
据报道,通过相应的羧酸的氟脱羧合成单,二和三氟甲基芳基醚。AgF 2引起芳氧基二氟乙酸的脱羧,并且就地生成或单独添加的AgF用作氟的来源,以生成氟代脱羧产物。2,6-二氟吡啶的添加增加了AgF 2的反应性,从而增加了所能接受的芳基的官能团范围和电子性质。用于形成三氟甲基芳基醚的反应条件也用于形成二氟甲基和单氟甲基芳基醚。