作者:Anatoliy M. Shestopalov、Ludmila A. Rodinovskaya、Alexander E. Fedorov、Victor E. Kalugin、Kirill G. Nikishin、Alexandr A. Shestopalov、Andrei A. Gakh
DOI:10.1016/j.jfluchem.2008.10.005
日期:2009.2
achieved via nucleophilicsubstitution of a leavinggroup in the 2-postion with KF or Bu4NF in polar aprotic solvents such as DMF and DMSO. Ionic tetrahydrothiophenium fragment is the most effective leavinggroup, the methanesulfonyl moiety is a somewhat less effective, and Br- and Cl- are the least effective. Relatively mild conditions of the reaction between (2-pyridyl)-tetrahydrothiophenium salts and KF
Microwave-assisted synthesis of substituted fluoroazines using KF·2H2O
作者:Anatoliy M. Shestopalov、Alexander E. Fedorov、Liudmila A. Rodinovskaya、Alexander A. Shestopalov、Andrei A. Gakh
DOI:10.1016/j.tetlet.2009.07.015
日期:2009.9
This Letter describes a new microwave-assisted fluorination of azines using hydrated potassium fluoride in untreated DMSO under atmospheric conditions. It is thought that microwave irradiation promotes desolvation of the fluorine anion leading to halide nucleophilic Substitution. (C) 2009 Elsevier Ltd. All rights reserved.