Copper- and Iron-Catalyzed Decarboxylative Tri- and Difluoromethylation of α,β-Unsaturated Carboxylic Acids with CF3SO2Na and (CF2HSO2)2Zn via a Radical Process
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- 10 January 2013
- journal article
- letter
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 15 (2), 406-409
- https://doi.org/10.1021/ol3034059
Abstract
A copper-catalyzed decarboxylative trifluoromethylation of various α,β-unsaturated carboxylic acids by using a stable and inexpensive solid, sodium trifluoromethanesulfinate (CF(3)SO(2)Na, Langlois reagent), was developed. In addition, an iron-catalyzed difluoromethylation of aryl-substituted acrylic acids by using zinc difluoromethanesulfinate (DFMS, (CF(2)HSO(2))(2)Zn, Baran reagent) via a similar radical process was also achieved.Keywords
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