Arenesulfonyl Fluoride Synthesis via Copper-Catalyzed Fluorosulfonylation of Arenediazonium Salts
作者:Yongan Liu、Donghai Yu、Yong Guo、Ji-Chang Xiao、Qing-Yun Chen、Chao Liu
DOI:10.1021/acs.orglett.0c00484
日期:2020.3.20
We report herein a general and practical copper-catalyzed fluorosulfonylation reaction of a wide range of abundant arenediazonium salts to smoothly prepare various arenesulfonyl fluorides using the 1,4-diazabicyclo[2.2.2]octane-bis(sulfur dioxide) adduct as a convenient sulfonyl source in combination with KHF2 as an ideal fluorine source and without the need for additional oxidants. Interestingly,
我们在此报告了一种广泛应用的丰富的芳烃二氮杂鎓盐的一般和实用的铜催化的氟磺酰化反应,可使用1,4-二氮杂双环[2.2.2]辛烷-双(二氧化硫)加合物作为方便的磺酰基来平稳地制备各种芳烃磺酰氟。源与KHF2结合作为理想的氟源,不需要其他氧化剂。有趣的是,起始的芳氮唑鎓盐中芳环的电子特性对反应机理具有重要影响。