Journal of the American Chemical Society
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Supporting Information. Experimental procedures and
characterization data for new compounds are available free
Scheme 3. Anti Difluorination via Proposed
Anchimeric Assistance
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AUTHOR INFORMATION
Corresponding Author
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Author Contributions
‡These authors contributed equally.
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Funding Sources
No competing financial interests have been declared.
ACKNOWLEDGMENT
This work was supported by the NIH (GM043214), by an
NSF pre-doctoral fellowship to S.M.B, and by an NIH
post-doctoral fellowship to J.W.M. We thank Dr. Shao-
Liang Zheng (Harvard) for determination of all of the X-
ray crystal structures.
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Scheme 4. Highly Enantioselective 1,2-Difluorination
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