Photochemical Perfluoroalkylation with Pyridine N -Oxides: Mechanistic Insights and Performance on a Kilogram Scale

Chem - Tập 1 Số 3 - Trang 456-472 - 2016
Joel W. Beatty1, James J. Douglas2, Richard D. Miller2, Rory C. McAtee1, Kevin P. Cole2, Corey R. J. Stephenson1
1Department of Chemistry, University of Michigan, Ann Arbor, MI 48109 USA
2Small Molecule Design and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, 46285, USA

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As previously noted, the reaction also becomes dark, thus further limiting light penetration.

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See the Supplemental Information for full details of the reactor design.

Pumps were temporarily stopped for <1 min while the feed bottles were refilled.

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We use 24 hr to define a day, but it should be appreciated that in many cases, other restrictions may prevent full 24 hr operation on a large (e.g., plant) manufacturing scale.

Many visible-light-mediated reactions have higher quantum yields, i.e., ≫1 where photon flux may not be the limiting factor. See Luo and Zhang.83