作者:Min Zhou、Chuanfa Ni、Yuwen Zeng、Jinbo Hu
DOI:10.1021/jacs.8b04000
日期:2018.6.6
Trifluoromethyl benzoate (TFBz) is developed as a new shelf-stable trifluoromethoxylation reagent, which can be easily prepared from inexpensive starting materials using KF as the only fluorine source. The synthetic potency of TFBz is demonstrated by trifluoromethoxylation-halogenation of arynes, nucleophilic substitution of alkyl (pseudo)halides, cross-coupling with aryl stannanes, and asymmetric
苯甲酸三氟甲酯 (TFBz) 被开发为一种新的货架稳定的三氟甲氧基化试剂,它可以很容易地从廉价的原料中制备,使用 KF 作为唯一的氟源。芳烃的三氟甲氧基化-卤化、烷基(伪)卤化物的亲核取代、与芳基锡烷的交叉偶联和烯烃的不对称双官能化证明了 TFBz 的合成效力。在冠醚络合的钾阳离子的帮助下,芳炔的前所未有的三氟甲氧基化-卤化在室温下顺利进行,这显着稳定了衍生自 TFBz 的三氟甲氧基阴离子。