Working Paper
Authors
- Benjamin Wigman University of California, Los Angeles ,
- Woojin Lee University of California, Los Angeles ,
- Wenjing Wei University of California, Los Angeles ,
- Ken Houk University of California, Los Angeles ,
- Hosea Nelson
California Institute of Technology
Abstract
The electrochemical generation of vinyl carbocations from vinyl boronic esters and boronates is reported. Using easy-to-handle nucleophilic fluoride reagents, these intermediates are trapped to form fully substituted vinyl fluorides. Mech-anistic studies support the formation of dicoordinated car-bocations through sequential single-electron oxidation events. Notably, this electrochemical fluorination features fast reaction times and mild conditions. This transfor-mation provides a complementary method to access vinyl fluorides with simple fluoride salts such as TBAF.
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