<i>O</i>-Trifluoromethylation of Phenols: Access to Aryl Trifluoromethyl Ethers by <i>O</i>-Carboxydifluoromethylation and Decarboxylative Fluorination
作者:Min Zhou、Chuanfa Ni、Zhengbiao He、Jinbo Hu
DOI:10.1021/acs.orglett.6b01779
日期:2016.8.5
A new strategy for the synthesis of aryl trifluoromethyl ethers (ArOCF3) by combining O-carboxydifluoromethylation of phenols and subsequent decarboxylative fluorination is reported. This protocol allows easy construction of functionalized trifluoromethoxybenzenes and trifluoromethylthiolated arenes (ArSCF3) in moderate to good yields. Moreover, it utilizes accessible and inexpensive reagents sodium
报道了通过结合苯酚的O-羧基二氟甲基化和随后的脱羧氟化来合成芳基三氟甲基醚(ArOCF 3)的新策略。该方案允许以中等至良好的产率容易地构建官能化的三氟甲氧基苯和三氟甲基硫醇化的芳烃(ArSCF 3)。而且,它利用可及的和便宜的试剂溴二氟乙酸钠和SelectFluor II,因此对于苯酚的O-三氟甲基化是实用的。制备植物生长调节剂氟草啶醇证明了该方法的潜在应用。