作者:Qi Zhang、Jason C. Mixdorf、Gilbert J. Reynders、Hien M. Nguyen
DOI:10.1016/j.tet.2015.04.066
日期:2015.9
via rhodium-catalyzed nucleophilic fluorination of benzylic trichloroacetimidates. A variety of naphthyl, phenyl, and pyridinyl trichloroacetimidates were fluorinated with Et3N·3HF reagent to provide fluorine-containing compounds in moderate to high yields under mild and operationally simple conditions. Preliminary mechanistic studies suggest that benzylic fluorination of trichloroacetimidate substrates
通过铑催化的苄基三氯乙亚氨酸酯的亲核氟化反应合成了氟化苯甲酸酯。用Et 3 N·3HF试剂对各种萘基,苯基和吡啶基三氯乙酰亚胺酸酯进行氟化,以中等和高收率在温和且操作简单的条件下提供含氟化合物。初步的机理研究表明,三氯乙酰亚氨酸酯底物的苄基氟化反应更可能通过铑催化剂生成的离散的苄基阳离子进行。