An efficient fluorination of β-ketosulfones promoted by a room-temperature ionic liquid at ambient conditions under ultrasound irradiation using Selectfluor^(TM) F-TEDA-BF_4
An efficient fluorination of β-ketosulfones promoted by a room-temperature ionic liquid at ambient conditions under ultrasound irradiation using Selectfluor^(TM) F-TEDA-BF_4作者机构:Department of ChemistryPayame Noor University(Pnu)P.O.Box.97AbharZanjanIran
出 版 物:《Chinese Chemical Letters》 (中国化学快报(英文版))
年 卷 期:2010年第21卷第12期
页 面:1399-1402页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金:Dutch Cancer Foundation(UvA 95-994) National Health and Medical Research Council of Australia(922608)
主 题:Fluorination Ultrasound irradiation β-Ketosulfones Selectfluor^TM Ionic liquids(ILs)
摘 要:The fluorination reaction involving a β-ketosulfones by Selectfluor^TM was efficiently promoted by the ionic liquid, [Hbim]BF4 (IL) as a reaction medium with methanol as co-solvent at room temperature under ultrasonic irradiation to afford the corresponding mono and difluoro-β-ketosulfones in excellent yields. The advantages of this method include among others the use of a recyclable, non-volatile ionic liquid, which promotes this protocol under room temperature without the requirement of any added catalyst under ultrasonic irradiation.