Rapid Deoxyfluorination of Alcohols with
<i>N</i>
‐Tosyl‐4‐chlorobenzenesulfonimidoyl Fluoride (SulfoxFluor) at Room Temperature
作者:Junkai Guo、Cuiwen Kuang、Jian Rong、Lingchun Li、Chuanfa Ni、Jinbo Hu
DOI:10.1002/chem.201901176
日期:2019.5.28
2‐pyridinesulfonyl fluoride (PyFluor) in fluorination rate, and is also superior to perfluorobutanesulfonyl fluoride (PBSF) in fluorine‐economy. Its reaction with alcohols not only tolerates a wide range of functionalities including the more sterically hindered alcoholic hydroxyl groups, but also exhibits high fluorination/elimination selectivity. Because SulfoxFluor can be easily prepared from inexpensive
醇类的脱氧氟化是获取烷基氟化物的最基本的方法,因此,迫切需要开发出耐贮存,易处理,氟经济且高选择性的脱氧氟化试剂。这项工作描述了结晶化合物N的发展甲苯磺酰基-4-氯苯磺酰亚胺基氟(SulfoxFluor),作为一种新型的脱氧氟化剂,具有上述所有优点,在脱氧氟化领域是罕见的。由于具有磺酰亚胺基的多维调节能力,SulfoxFluor的氟化速率优于2-吡啶磺酰氟(PyFluor),并且在氟经济方面也优于全氟丁烷磺酰氟(PBSF)。它与醇的反应不仅可以耐受各种功能,包括受空间位阻更大的醇羟基,而且还具有很高的氟化/消除选择性。由于SulfoxFluor可以轻松地由廉价的材料制成,并且无需特殊技术即可安全地进行处理,