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Article Abstract
Reported herein is the generation of -quinone methides (-QMs) via metal-free visible-light-induced oxidation of -alkylarenols, as well as their subsequent reaction with olefins to afford chromans in good to excellent yields (up to 91%). The key is the selective activation of the benzylic C(sp)-H bond of -alkylarenols via single electron transfer (SET) and the formation of -QMs via hydrogen atom transfer (HAT).
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| http://dx.doi.org/10.1021/acs.orglett.4c04494 | DOI Listing |
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