Deoxygenative perfluoroalkylthiolation of carboxylic acids with benzothiazolium reagents
作者:Alex Haswell、Matteo Tironi、Haoyue Wang、Matthew N. Hopkinson
DOI:10.1016/j.jfluchem.2023.110231
日期:2024.1
Deoxygenative perfluoroalkylthiolation reactions of readily available carboxylic acid derivatives have been developed using a series of 2-(perfluoroalkylthio)benzothiazolium (BT-SRF) reagents as convenient sources of perfluoroalkylthiolate anions. This method avoids pre-activation of the substrates and delivers rarely reported perfluoroalkyl thioesters featuring SRF groups up to C6F13. A survey of
使用一系列 2-(全氟烷硫基)苯并噻唑鎓 (BT-SR F ) 试剂作为全氟烷基硫醇根阴离子的便捷来源,开发了易于获得的羧酸衍生物的脱氧全氟烷基硫基化反应。该方法避免了底物的预活化,并提供了很少报道的具有 SR F基团高达 C 6 F 13的全氟烷基硫酯。使用五氟乙基硫醇化试剂 BT-SC 2 F 5对羧酸底物进行的调查也揭示了该方法作为获取未充分探索的氟化化合物的方法的普遍性。
Perfluoroalkylation of 2-mercaptobenzothiazole and its analogues with perfluoroalkyl iodides by an SRN1 reaction
作者:Qing-Yun Chen、Mei-Jin Chen
DOI:10.1016/s0022-1139(00)80303-6
日期:1991.1
The thiolates, generated in situ by the reaction of 2-mercaptobenzothiazole (1) and its analogues (2) and (3) with sodium hydride, react under UV irradiation with perfluoroalkyl iodides (4)-(8) to give the corresponding heteroaromatic perfluoroalkyl sulfides (9)-(18) in 50-98% yields. The fact that the UV irradiation increases the conversion of perfluoroalkyl iodides and that the radical scavenger di-tert-butylnitroxide suppresses the reaction demonstrates that the reaction proceeds via an S(RN)1 mechanism.