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- Title
Evidence for C−F Bond Formation through Formal Reductive Elimination from Tellurium(VI).
- Authors
Ragan, Abbey N.; Kraemer, Yannick; Kong, Wang‐Yeuk; Prasad, Supreeth; Tantillo, Dean J.; Pitts, Cody Ross
- Abstract
The fundamental challenge of C−F bond formation by reductive elimination has been met by compounds of select transition metals and fewer main group elements. The work detailed herein expands the list of main group elements known to be capable of reductively eliminating a C−F bond to include tellurium. Surprising and novel modes of both sp2 and sp3 C−F bond formation were observed alongside formation of TeIV cations during two separate attempts to synthesize/characterize fluorinated organotellurium(VI) cations in superacidic media (SbF5/SO2ClF). Following detailed low‐temperature NMR experiments, the mechanisms of the two unique reductive elimination reactions were probed and investigated using density functional theory (DFT) calculations. Ultimately, we found that an "indirect" reductive elimination pathway is likely operative whereby Sb plays a key role in fluoride abstraction and C−F bond formation, as opposed to unimolecular reductive elimination from a discrete TeVI cation.
- Subjects
REDUCTIVE elimination (Chemistry); DENSITY functional theory; TRANSITION metal compounds; TELLURIUM; TRANSITION metals
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 38, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202208046