Trichloromethylation through Photoredox Catalysis
The activation of chemical reactions by visible light has attracted much interest over recent years. There are two key reasons for this: 1) visible light has been recognized as an abundant source of energy and is therefore in line with current interests of developing sustainable chemistry, and 2) visible-light activation provides a convenient tool for triggering single-electron transfer (redox chemistry) under mild conditions, thereby allowing exploitation of the useful reactivity of odd-electron species such as radical ions and radicals. The group of Professor Eric Meggers at Philipps-Universität Marburg (Germany) has recently introduced a novel class of visible-light-activated asymmetric catalysts. Following those discoveries, their focus turned on the study of a useful application to demonstrate the merit of the asymmetric photoredox catalyst design and developed an enantioselective, catalytic trichloromethylation through visible-light-activated photoredox catalysis.
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