Supporting Information for "Bipolar Electrochemical Fluorination of Triphenylmethane and Bis(phenylthio)diphenylmethane Derivatives in a U-shaped Cell"

Electrochemical fluorination of triphenylmethane derivatives and bis(phenylthio)diphenylmethane derivatives by using a split bipolar electrode is described. The reaction conditions for the fluorination of triphenylmethane were further optimized from the previous report to obtain the desired product in quantitative yields. Fluorination reaction cleanly proceeded under a wide range of voltage applied between the driving electrodes, from 25 to 100 V. Use of lower voltage is preferable in terms of energy efficiency, whereas higher voltage shortened the reaction time. The optimized conditions were applicable to the fluorination of other triphenylmethane derivatives and bis(phenylthio)diphenylmethane derivatives to give the corresponding fluorinated products.

本文详细阐述了采用分极双电极对三苯甲烷衍生物及双(苯硫基)二苯甲烷衍生物进行电化学氟化的过程。相较于先前报道，本研究进一步优化了三苯甲烷氟化的反应条件，以实现目标产物的定量获得。氟化反应在驱动电极之间施加的电压范围内（25至100伏）均能顺利进行。从能源效率的角度考虑，低电压的使用更为可取，而高电压则可缩短反应时间。所优化的条件亦适用于其他三苯甲烷衍生物及双(苯硫基)二苯甲烷衍生物的氟化，从而获得相应的氟化产物。