Bis-triethylene Glycolic Crown-5-calix[4]arene: A Promoter of Nucleophilic Fluorination Using Potassium Fluoride
作者:Seok Min Kang、Chul Hee Kim、Kyo Chul Lee、Dong Wook Kim
DOI:10.1021/acs.orglett.9b00649
日期:2019.5.3
a bis-triethylene glycolic crown-5-calix[4]arene (BTC5A) as a multifunctional promoter for nucleophilic fluorination using KF. The synergetic effect of the calix-crown moiety and ethylene glycols of BTC5A enabled KF to be easily dissolved in organic solvents and activated the fluoride in even nonpolar aprotic media. To validate its practicality, the SN2 fluorinations including 18F-fluorination of various
我们设计和合成了双三甘醇的Crown-5calix [4] arene(BTC5A)作为使用KF进行亲核氟化的多功能促进剂。BTC5A的杯冠部分和乙二醇的协同作用使KF易于溶解在有机溶剂中,甚至在非极性非质子介质中活化了氟化物。为了验证其实用性,在BTC5A存在下,使用KF(或[ 18 F] F –)成功地进行了S N 2氟化,包括各种底物的18 F氟化。