Electrolytic partial fluorination of organic compounds. Part 43: Highly regioselective anodic mono- and difluorination of propargyl sulfides and preparation of α-fluoroallenyl sulfides
作者:Sayed M Riyadh、Hideki Ishii、Toshio Fuchigami
DOI:10.1016/s0040-4039(01)00344-6
日期:2001.4
The anodic fluorination of aryl propargyl sulfides in DME containing a fluoride supporting electrolyte using an undivided cell provided the corresponding α-mono- and α,α-difluorinated sulfides selectively, depending on the amount of electricity passed. The α-monofluorinated sulfides were readily converted into the corresponding α-fluoroallenyl sulfides in good to moderate yields.
Partially fluorinated triazole derivatives were synthesized through anodic fluorination of alkynes having arylthio group and following Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) with benzyl azide. The other route toward the fluorinated triazoles, namely the anodic fluorination of triazole derivatives once prepared by advanced CuAAC of the alkyne and azide above was also investigated. It was
Electrolytic partial fluorination of organic compounds. Part 60: Highly regioselective anodic fluorination of aryl propargyl sulfides
作者:Sayed M Riyadh、Hideki Ishii、Toshio Fuchigami
DOI:10.1016/s0040-4020(02)00559-8
日期:2002.7
Aryl propargyl sulfides were subjected to electrochemical fluorination in dimethoxyethane (DME) containing various fluoride supporting electrolytes using an undivided cell to provide the corresponding α-monofluorinated or α,α-difluorinated sulfides selectively as main products in good yields depending on the amount of electricity passed. The α,α-difluorinated sulfides were stable enough to be isolated