Copper-Catalyzed Trifluoromethylation of Unactivated Olefins
作者:Andrew T. Parsons、Stephen L. Buchwald
DOI:10.1002/anie.201104053
日期:2011.9.19
Activating the inactive: A copper‐catalyzed allylic trifluoromethylation of unactivated terminal olefins proceeds under mild conditions to produce linear allylic trifluoromethylated products with high E/Z selectivity (see scheme). The reaction can be applied to a range of substrates bearing numerous functional groups. Furthermore, the reaction is scalable and amenable to a benchtop setup.
Enantioselective Functionalization of Radical Intermediates in Redox Catalysis: Copper-Catalyzed Asymmetric Oxytrifluoromethylation of Alkenes
作者:Rong Zhu、Stephen L. Buchwald
DOI:10.1002/anie.201307790
日期:2013.11.25
Something radical: An efficient enantioselectiveoxytrifluoromethylation of alkenes has been developed using a copper catalyst system. Mechanistic studies are consistent with a metal‐catalyzed redoxradical addition mechanism in which a CO bond is formed by the copper‐mediated enantioselective trapping of a prochiral alkyl radicalintermediate derived from the initial trifluoromethyl radical addition